Projectors Reviews, price and comparision

The InFocus IN1124 ($ 975 direct) is a compact, lightweight, but bright data projector aimed at business travelers who often must represent to small groups. It is very portable, though you must run presentations on a computer because there is no port for a USB flash drive. Picture quality is mediocre, but it is the task of the typical business presentations.

The IN1124 brightness is rated at 3,000 lumens. The projector has a native resolution XGA (1,024 by 768), a 4: 3-aspect ratio, typical of projectors.  At 2.8 of 8.6 from 7 inches (HWD) and 3.4 pounds, it is very compact and lightweight. The editors' choice Epson PowerLite 93++ $549 direct (4 stars) is not quite as bright (at 2,600 lumens), during the NEC NP-V300X ($ 779 direct, 3.5 stars) the IN1124 games brightness. Although portable, they are InFocus larger and heavier than that. The 2,500 lumens Boxlight TraveLight3 $999-list (3.5 stars), a further XGA projector, is approximately the same dimensions as the IN1124.

This projector is black and boxy. The front can be tilted upwards with an expandable riser. There are wheels, zoom and focus; I had no problem in a reasonably hot the IN1124 bring.

The IN1124 packs a typical range of ports for an ultraportable projector: a HDMI port (which we in these days, even on XGA projectors often see); S-video; an RCA Jack for composite video; Audio input; VGA; and a USB-mini-B port that you support, can plug into your computer for wireless mouse, so you can use the projector remote control instead of the mouse, slides and the like ahead.

An interface that would have been, is a useful addition to a USB type A, free USB stick a presentation computer run. Without them, you don't always have lug on a laptop with you. The projector comes with a soft case for protection.

Test data and video

I tested the IN1124 from about 10 meters away, where it threw a 6-meter diagonal image on our test screen, that good on ambient light level. When testing with the display machines suite (www.displaymate.com), data was image quality typical for a DLP projector with data. There were some color, usually in the form of chromatic aberration, where the boundary between a light and dark area (such as the edges of the image would appear coloured - if on the top or right of when blue yellow at the bottom.) Areas of the actual saw yellow, but sometimes mushy and somewhat green.

All DLP projectors may be subject to a rainbow effect in the white field in its component colors break when moving the view one (or, in the case of video) when something on the screen moves. This effect was clear to me in pictures which tended to bring them. White on-black text was readable, although fuzzy on the smallest sizes, and subject to a mild tint. Image quality should be good for typical data presentations, unless you need sophisticated color.

Video quality is sufficient for short video clips within a presentation. The projector has also in the resolution of details in dark and light areas. Colors seemed somewhat true, except for two issues. The rainbow effect was more clearly than in typical DLP projectors, and people who would like to sensitive on it probably not this projector to see video for any length of time.

The other problem is color fringing. The crossroads where bright areas meets dark backgrounds (including the edges of the screen if the of the picture close to them was bright) often as colored lines showed, when yellow at the top (or right) from the light, and blue when at the bottom. The yellow edge was be most remarkable and the fringing visible often enough annoying - it was really in the type in the film credits.

Result video with the IN1124 is another drawback, that their sound system, which employs a 1-Watt speakers, weak. She should be very close to the projector to be audible.

The InFocus In1124 is a lightweight, portable projector appropriate for their target audience: businessmen who need to make frequent presentations to small groups during the trip. It is brighter - and easier - than the editors' choice XGA resolution Epson PowerLite 93++. However, the InFocus image quality was mediocre during the Epson data and video image quality both very good were. The 93++ has the sounds and clear audio that the IN1124 is missing. However, it is not so handy, like the InFocus for frequent moderators, a small and bright projector, to get the job done while on the road, the IN1124 prefer can be. The InFocus is brighter than the equally portable Boxlight TraveLight3, about the same image, quality and sound.

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Whether you are looking for a low-cost XGA (1,024 by 768) projector, lightweight model as a regular travel companion, or both, 6, 9-pound, use should Epson PowerLite 93++ ($ 549 direct) on your list. Although its 2,600 lumens rating according to today's standards is a little low, it is so bright in its class projector is like most previous generation. More importantly, it is easily bright room enough for small and medium-sized conference its meant for, and bright enough for editors' choice.

It is not difficult to competing projectors such as the 3,000 lumens NEC display solutions NP-V300X ($ 779 direct, 3.5 stars), the higher price tags, as well as offer higher brightness reviews, but they come with. In addition, many of them, including the NP V300X and the still more expensive editors' choice Optoma TW610ST ($ 1,000, 4 stars) based on a DLP chip, i.e. suffer a rainbow effect - one more or less strongly to break the trend for light areas surrounded by dark areas on the screen, in small red-green-blue rainbow above.

These Rainbow artifacts grow from the art and fashion a-chip DLP projectors create color. Some people are more sensitive to the effects than others, and some DLP projectors show it easier than others, but there is always a potential concern. A three-panel LCD projector as of 93++, on the other hand every opportunity eliminated the rainbow effect. This is a major plus when you fear that some people in your audience artifacts can find annoying Rainbow.

The basics
The 93++ is a little large for his weight and 3.7 of 13.6 10.3 inches (HWD) - or 4.2 inches tall, if you include the feet. However it is small and light enough, to 6.9 kg, without much effort. It doesn't come with a carrying case, though, so be sure, costs add one on the price if you compare it with other models, the one.

Installation is standard. Simply plug in the appropriate cable, change the zoom 1.2X and focus the image. The connections for image sources include an HDMI port on a computer or video source, two VGA connectors for computer or component-video and a composite video and S-video connection. Can also send a picture from your computer to the USB port or the computer mouse from the remote control link, although you not both at the same time.

Image quality and other issues
Belongs to the projector enhance image quality for data and video. The 93++ sailed through display materials are ordered without serious problems. Colors were alive and fully saturated and color balance he was excellent, with all levels gray from black to white accordingly in all but one of the presets color neutral. Impressively, I saw bring no pixels with an analogue line display jitter to tremble. It is also a lot reference value that both black on white and white on black text were crisp and very well up on the smallest sizes we test.

Video quality was what would you want from a home theater projector, but excellent for Beamer well. I saw a hint of sound separation (suddenly change colors, where they are to be changed after) and a moderate loss of shadow detail (information on the basis of shades in dark areas), but only to test clips that are especially difficult to treat. The most viewers not much worse. And neither problem showed up on typical scenes.

The integrated audio with a 16-Watt mono speaker, is yet another plus. The speakers in the most viewers in this weight class are hardly worthwhile. 93++ Speaker is loud enough to a small to medium-sized conference room or classroom and high enough quality every word of a monologue low volume in a particularly challenging clip in our test suite to fill. In contrast to most viewers in this weight class even if you good sound quality, very easy you get by without an external sound system.

The Epson PowerLite 93++ offers a more than attractive combination of brightness, portability, data image quality video quality, audio quality and price. Its relatively low brightness by today's standards is a small blow against them, but it is important that the projector is bright enough for the intended use. The overall balance of the features is easily enough to the Epson PowerLite 93++ of the reasonably priced editors' choice for a portable projector XGA.

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The Optoma Pico PK320 Pocket Projector ($450 street) is the brightest pico projector we’ve tested, with a good range of connections including HDMI. It stacks up well against other pico projectors in connectivity, and has decent image quality but for one notable issue we encountered in testing. It’s worth a good look if you’re looking for a powerful pocket projector.

The PK320  is rated at 100 lumens, and has a native WVGA (854 by 480 pixel) widescreen resolution. The projector is quite compact, measuring 1.2 by 4.7 by 2.7 inches. Using our postage scale, I weighted the projector at 0.5 pounds, while adding the power adapter brought the total weight up to just under a pound. The projector also can run off an included, removable lithium-ion cell that can last 90+ minutes in eco mode and 50+ minutes in standard mode, according to Optoma. It can fit in my pants pocket easily enough, though it takes up much of the room.

This copper-brown projector has the look of a larger projector, with the lens near the edge of one of the long sides, as opposed to the “light saber” appearance of many picos in which the beam emerges from the middle of the narrow end. The focus wheel is in front of the lens, and is tricky to use, even if you can avoid putting a finger into the light path. On one side is the tiny power button; in back are the ports, a good selection for a pico projector: a proprietary port to fit a VGA cable; mini-HDMI; micro-USB for file transfer; AV-in, which fits an included cable with 3 RCA plugs for composite video, and an audio-out jack for headphones.

On top of the projector is a 7-button control panel, backlit with blue LEDs (though you have to quickly make a selection as the buttons soon go dark). The projector includes a tiny remote the same 7 buttons, plus buttons for Off, Bright, and for accessing VGA, HGMI, and Video sources. Working the menus can be awkward, especially at first. The controls (both on the remote and on the projector itself) make use of the arrow keys, but more often as symbol keys to access specific functions than to navigate menus. For instance, the Home screen shows six choices, each identified by a symbol: the right arrow denotes Setup, the up arrow, Music, etc.—they’re useless as arrow keys here in that you can’t scroll anywhere, but they do take you to the functions they symbolize. This takes some getting used to.

You can run presentations computer free from the projector’s 2GB of internal memory, or off of a microSD card. In addition to showing video, you can play music, show photos, or display business documents (Word, Excel, PowerPoint, or PDF) from internal memory, memory card, or thumb drive.

I tested the PK320 from about 8 feet away from our test screen, where it threw a test image about 48 inches diagonally. Image quality suffered in modest ambient light, so it’s best used in a relatively small, dark room.

Image Quality

In testing using the DisplayMate  suite, I found the PK320’s data image quality suitable for internal presentations, say to a small workgroup—provided that the room is dark and relatively small. You could use it for presenting to potential clients in a pinch, though you might not want to use it in presentations where sharp text or exacting color is paramount. The good news is that (with the exception of an issue that I’ll soon discuss) colors were bright and reasonably true, especially yellows, which often look dull or mustardy with DLP projectors. The projector also showed less of a rainbow effect— distracting red-green-blue rainbow glints, particularly in bright areas against a dark background—than most DLP projectors.

In our text testing, images showed some blur at the two smallest sizes in both black-on-white and white-on-black text, a bit more fuzzy than is typical of a data projector. The other notable issue involved tinting in images with white or gray backgrounds.

When I set up our test unit and turned it on, I immediately noticed a pink tint in the (rather busy) image’s upper left corner. It persisted even after I’d given the projector enough time to fully warm up. In DisplayMate testing, when viewing an image that should have been uniformly white, the tinting revealed itself more fully as pinkish on the image’s left side, and greenish towards the bottom center.

The issue was notable enough that I requested a second test unit from our Optoma rep. I noticed the same issue in the second projector, though it wasn’t as severe: Only a trace of the pink showed up (in the same location), but the green was still apparent, at nearly the same intensity as with the original test unit. It showed up against white to medium gray backgrounds in data images, and with Word and Excel documents. It’s hard to say how pervasive or severe the problem is among PK320s in general based on two test units, but it’s definitely an issue worth looking out for. Optoma says that it is looking into the issue, with an eye towards correcting any irregularities they encounter.

Video Quality

I tested video quality using multiple video sources over several connections, primarily HDMI. The Optoma ML300 is okay for short clips, provided that color fidelity isn’t critical. For the most part, colors were bright and well saturated, but some tinting was apparent at times. Flesh tones tended to look reddish, and some bright areas took on a greenish tinge. Also, there was some loss of detail in bright areas. One plus is that, as was the case in data images, rainbow artifacts were nearly nonexistent and shouldn’t be an issue except maybe for people particularly sensitive to the effect.

Other Issues

The audio from the PK320’s built-in 2-watt speaker is of modest volume, not bad for a pico projector but you’ll want to be close to the projector whether you’re watching a movie or playing music. Fortunately the unit has an audio-out jack for headphones or powered external speakers.

The LED light source will last an estimated 20,000 hours, so you should never have to replace bulbs. The projector is backed by a 1-year limited warranty.

The market for micro-projectors has changed in the past year, with the influx of small LED-based projectors, palmtop sized or a little larger, in the 200 to 500 lumen range. Though there were always a few palmtop projectors, there’s now more of a continuum in side and brightness between pico projectors and ultra-portable business projectors.

The PK320 is among the largest and most powerful pico projectors, and its price is just slightly lower than the new micro-projectors (which cluster in the $500 to $600 range). The PK320 is smaller and lighter than these models, which weigh between 2 and 3 pounds. One drawback, though, is that it has an external AC adapter—which, unlike the projector, isn’t pocketable—while the LED micro-projectors have internal power supplies. The micro-projectors offer higher resolution, generally WXGA (1,280 by 800), and they’re considerably brighter than picos— though we haven’t been impressed with TI’s latest generation of DLP chips that many of them use, as they tend to introduce apparent scaling artifacts in data images that may result in softer focus.

If you’re considering the Optoma Pico PK320, you may want to look at some of these slightly larger and brighter micro-projectors such as the Optoma ML500  ($650 street, 3.5 stars), Acer K330 ($600 street, 3.5 stars), and the more entertainment-oriented BenQ Joybee GP2 ($599 direct, 4 stars) as well. As for picos, the Editors’ Choice Optoma Pico PK301 offers much of what the PK320 brings to the table at a lower price, though it lacks an HDMI connection and is only rated at 50 lumens. The Favi B1-LED-Pico ($280 street, 3.5 stars) is also a respectable choice, though it lacks a battery and so must remain yoked to a wall wart.

The Optoma Pico PK320 Pocket Projector is a powerhouse as a pico projector, bright and with a wealth of connectivity choices. However, it’s less impressive for its price now that bright micro-projectors are available for a little more money, and it still has a few image quality kinks to work out.

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Depending on your point of view is the Hitachi BZ-1 ($ 1,795 Street) either a slightly brighter, higher resolution, interactive version of the editor ' choice Hitachi CP A221N $1,300 road (4.5 stars), a slightly modified version of the Hitachi iPJ AW250N ($ 1,800 road, 4 stars), or a bit of both. Regardless of what description, decide to effectively cherry, it takes all the key features that make these models attractive and combines them into a winner hands down as the new editors' choice for interactive ultra short throw projectors.

Like the Hitachi iPJ AW250N the BZ-1 native resolution WXGA (1280 x 800), and a 2,500 lumens offers brightness evaluation and integrated interactivity. Like the CP A221N, it adds the one potentially important feature that is lacking the iPJ AW250N, namely: the ability mounting vertical without overheating, so you can create an interactive table top it directly on face. It is Hitachi LCD based like the two other models.

A possible problem for the BZ-1 is the lack of 3D support, a feature, you most DLP-based interactive projectors, such as for example the editors' choice Optoma TW675UTi-3D ($ 1,800 road, 4 stars) find. In this letter, but no other LCD-based business projectors offer 3D support, so that for the technology. LCD-based is also guaranteed that BZ-1 not the Rainbow artifacts indicating that they produce DLP projectors typically show because of the way color. So actually need 3D, is one of the LCD-based engine as an advantage.

The basics: Portability and Setup
The BZ-1 beautiful touches is part of its relatively small size and weight. Ultra short-throw projectors are designed typically for permanent installation, and they weigh typically about 15 pounds. The BZ-1 is small and light enough to easily by hand carry from room to room. Only 9.1 pounds and measuring 4.0 of 13.6 11.9 cm (HBT), it has easily enough, occasional travel serve as companion, if you need to provide interactive presentations on the road.

Except for the interactive feature, the installation is standard. An HDMI port for a computer or video source, two VGA connectors for computer or component-video, a pass through port VGA and S-video, and composite video connections include connection options for data and video images. In addition, a USB port can plug in a USB flash drive, JPG, PNG, BMP, GIF or read PDF files directly.

A major difference between the BZ-1 approach to interactivity and the approach that use most projectors is DLP-based, you must calibrate the BZ-1, move every time you set it up or change resolution.

DLP projectors that use interactive function TI must not calibration, because the viewer overlays an invisible grid on the screen and the pen uses the grid to report where it refers. On the other hand, it depends on BZ-1 approach, a combination of infrared and ultrasonic signals between pen and projector. If you calibrate the two knowledge the projector where is the pen if you touch you to draw the screen, highlight, or not use the stylus as a mouse.

The good news is that requires only nine points with the pen touch calibration, and takes less than a minute. Also note that a benefit to the BZ-1 approach which is the pen much thinner than that get interactive with most DLP-based projectors. It is just about as thick as a highlighter, making it much more convenient to keep and work with, especially if you have small hands.

Looks good an overview over short distances,
What makes impressive ultra short-throw projectors is the size image to project that they from a certain distance. A picture 78 inches wide (93-inch diagonal) to obtain resolution in my tests, the native WXGA, I had the projector about 13 inch screen. Hitachi says, that the spectrum for the BZ-1 60-100 cm diagonal, with the front of the projector 4.7 15.4 inch up to screen.

Note that all these measurements from the front of the projector, the actual throw 11 inches more in any case is distance around. Is typical for shortest throw projectors, is the lens close to the back seems to be in a mirror which reflects the image on the screen.

The BZ-1 offers the same 2,500 lumens of brightness evaluation as the iPJ AW250N. This is not as bright as the rating at 3200 lumens, Optoma TW675UTi-3D, but it is more than bright enough for the size of the image, which I tested against typical levels of light in a conference room or classroom with. Keep in mind also, that the perception of brightness is logarithmic, so certain percentage increase lumen translate not to so large an increase in perceived brightness.

Image quality for data and video are among the strengths of the BZ-1. The projector has particularly good on our standard suite of display materials tests, with vibrant color; sharp, very readable text at small sizes; and no problems mention value.

Video quality was good for beamer. It is not in the same class as home theater projectors, but its good enough to you comfortable, in film can, as long as you are not too much of a perfectionist. I saw the same light color balance issue I saw with the iPJ-AW250N, such as with grayscale in night scenes on a clearly brownish tint. The image is to see but certainly comfortable for long sessions.

Interactivity and other problems

The interactive feature worked as my tests expected. As typical for Hitachi's interactive projectors, there is a slight delay between the pencil move and see the result, but the response time is fast enough with the pen feel natural. As with the most interactive projector, Hitachi offers a pen and offers also an interactive program, if you have not already.

A big difference between the iPJ AW250N and the BZ-1 is a modification of cooling, so that you provide the BZ-1 vertically can, without having to worry about overheating and shorten the life of the lamp. In this way, you can the projector to create an interactive table top and Hitachi, use, sell a table mount ($ 200 Street) to facilitate.

The lack of an option to use a vertical mounting was the only issue which the iPJ AW250N are held editors' choice. With the Hitachi BZ-1 provides that strengthen same - from the shortest throw a bright, high-quality image - and vertical mount add the ability, it is a simple editor ' choice pick. How it occurs, rather than replaces, the Optoma TW675UTi-3D. If you need 3D, is the Optoma projector is still the obvious choice. If you do not, and especially if you see a way to avoid Rainbow artifacts, the Hitachi BZ-1 is a better choice.

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The Severtson GP169923D ($1,150 street), which Severtson describes as a Portable Projection Screen Pull-Up with SeVision 3D GX Screen Material, counts as an impressive portable screen in two very different ways. First, as a more or less portable screen, it's extraordinarily easy to set up and break down. And second, the screen material is also far from ordinary. Designed for 3D, it does an excellent job handling 3D images. Unlike some 3D screens, however, it handles 2D well also. The result is a single screen you can use for all your projection needs, which is enough to make the GP169923D both literally and figuratively an attractive choice.

A word about the portability first. Like the 80-inch diagonal Optoma DP-MW9080A ($350 street, 4 stars), which it physically resembles in some ways, the GP169923D isn't really portable. It's light enough, at 20 pounds, so you can carry it with you from one place to another, but the case, when closed, is 3.1 by 86.4 by 2.4 inches (HWD), making it more than a little hard to carry around without banging into walls, furniture, or people.

Arguably the best use for the GP169923D is in a single room—whether a conference room, classroom, or family room—where a permanently installed screen isn't an option. Set it up, and it's big enough for an impressively big picture, at 92-inches diagonally with a 16:9 aspect ratio (80 inches wide by 45 inches high). Close it, and it's small enough to sit unobtrusively against the base of a wall. It's also light enough to pick up easily to move short distances, including from room to room, and it has a handle to make it easy to carry. But be careful not to bump into things.

Setup

When I reviewed the Optoma DP-MW9080A , I said (foolishly, it turns out) that it was hard to imagine how any non-permanent screen could be easier to set up. The GP169923D is much easier.

The first screen Severtson sent for review used a frame virtually identical to the one that the DP-MW9080A uses, with an adjustable arm in the back that swivels up to be perpendicular to the floor. You can then lift the screen by the same handle you use to carry it, hook it on the arm and adjust the arm height. The process takes 30 seconds or less. When I mentioned the similarity to a Severtson representative, however, he said the company no longer uses this frame (although the screen material is the same).

The only screen with the newer frame that Severtson could send me quickly was a smaller model, roughly 55-inches wide, but the company says that the larger frame works exactly the same way. In any case, I've never seen a portable screen this easy to set up.

You first pivot each of two feet—one near each end—so they're perpendicular to the case and can give the screen better stability. You then press the release button, grab the top of the screen and lift it to unroll the screen from the case. In addition to the screen material itself, there's an additional black section below it, so the entire viewing area can be well above the base.

Unlike the earlier version of the frame, the height of the screen is infinitely adjustable, thanks to a spring-loaded accordion-style support behind the screen. There's no supporting arm to hook it on or that you have to adjust to the right height in a separate step. Instead, you move it up or down simply by lifting it or pushing it down. Total setup time is only a few seconds to pivot the feet plus about a second for lifting the screen. Closing it to put it away is just as fast and easy.

The SeVision 3D GX Screen Material

Although the frame makes the GP169923D easy to use, what makes it a 3D screen is its screen material. As I discussed in my review of the Volfoni SmartCrystal Pro ($1,500 street, 4 stars) if you want to use passive glasses for stereoscopic 3D with a projector, you not only need the right hardware to project the image, you need a 3D screen.

Stereoscopic 3D works by alternating between frames for the left eye and frames for the right eye. It also needs some mechanism to make sure each eye sees only the frames meant for that eye. Your visual system then integrates the two sets of frames to see in 3D. With passive 3D glasses, the mechanism that separates out the frames is polarization. The two sets of frames for the left and right eyes are polarized in different directions, and so are the lenses in the glasses, so each eye sees only those frames that are polarized in the right direction for that eye.

Standard white or gray screens for 2D and for active shutter 3D glasses won't work with passive glasses. Shine polarized light on them, and they turn it into non-polarized light (or, more precisely, randomly polarized light). What you need instead is a silver screen material, which retains the polarization when it reflects the light. These silver screens are generally called 3D screens. Many are suitable only for 3D, typically because they reflect light unevenly, which shows as hot spots on the screen with 2D. Home theater enthusiasts often wind up with two screens as a result, switching between a 2D and 3D screen as needed.

One of the strengths of the SeVision 3D GX screen material is that, like some other 3D screens, it's suitable for both 3D and 2D, thanks to what Severtson touts as an "amazing" uniformity of gain and texture. Indeed, in my tests it worked just fine with both kinds of images.

Other Screen Material Issues

The screen material also offers other some important features that affect the viewing experience, starting with a 2.4 gain. At the risk of oversimplifying a bit, screen gain tells you how bright the reflected light from the screen is compared to what you would expect from a white surface that reflected light equally well in all directions.

A 1.0 gain screen is equally bright from any viewing angle. A high gain screen like the GP169923D is noticeably brighter from directly in front of the screen than from, say a 45 degree angle, because it's reflecting more light directly back than to the sides.

The advantage of a high gain is that if you're sitting in the right position in front of the screen, you'll see a brighter image than you otherwise would. The disadvantage is that with some seating arrangements, which you may have in a conference room, for example, some seats may be far enough to the side for the image to be noticeably dimmer.

With the GP169923D, the specification for gain drops below 1.0 at a little less than a 30 degree viewing angle. At 45 degrees it's 0.5. As with any high gain screen, if you can't arrange your seating to keep everyone within an appropriately narrow viewing angle, the high gain could be more of a problem than an advantage.

One other specification worth mention is the extinction ratio, which may need a little explanation. Even 3D screens don't do a perfect job of maintaining polarization. Some of the light in each frame becomes randomly polarized, so you'll see it with the wrong eye. The more light that becomes randomly polarized, the brighter the unwanted image will be and the easier it will be to see, in the form of a ghost image, or crosstalk.

The extinction ratio tells you the brightness ratio between the frames you're supposed to see with a given eye and the ones that are meant for the other eye. The higher the ratio, the dimmer the wrong frames are in relation to the right ones, and the less crosstalk you'll see. An extinction ratio of 150 is considered pretty good. SeVision 3D GX claims a bit over 250. As with gain, the extinction ratio drops rapidly with viewing angle, falling to 150 at 21 degrees, hitting 100—which is still a reasonably good level—at 27 degrees, and falling below 50 at 45 degrees. Not surprisingly, in my tests, I saw obvious crosstalk at a 45 degree viewing angle, but not when I was sitting directly in front of the screen.

Ultimately, the GP169923D is a highly attractive choice. The screen size is big enough to let you project a relatively large image, and it's easy to set up and easy to put away, which is an important issue for a screen that you'll be setting up repeatedly as needed.

The screen material is certainly the main attraction. The high gain will be a plus in some circumstances and a problem in others, but that's true for any high-gain screen. Quite simply, if a high gain isn't appropriate, you shouldn't be considering any screen that offers high gain. Similarly, if you don't need a 3D screen, there's obviously no reason to spend the money for one. However, if you want a single, semi-portable screen both for 3D with polarized light and for 2D, make sure you include the Severtson GP169923D on your short list. It's unquestionably worth a close look.

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While the most micro projector try makers these days, so many ports for different connections sources as possible in their products small frames fit, Acer has the opposite tack with his C120 projectors ($ 299.99 list). This Pico Projector via USB connected - and USB alone - emulate what's on your computer screen on a computer. In this respect is similar to it have some budget projectors, the we, like the 15 lumens Ray Lite ($159 direct, 3 stars seen), but the Acer is much brighter and easier to set up (but not necessarily to run).

The C120 is a LED-based DLP projector with a native resolution of WVGA (854 by 480). Its rated brightness is 100 lumens, the it brings in your Pocket projector elite. The only other 100 lumens have Pico Projector that we reviewed is the Optoma Pico PK320 Pocket projector ($ 450 Street, 3 stars).

The C120 is a nice tiny projector, black (shiny at the top) and rectangular with round corners. It fits in my pocket, but just barely. I weighed it on our postage scale at 6 ounces; Add the power supply brought the total weight up to only 13 ounces. The wheel is the focus on the page next to the lens, I find it front of the lens, at least for the prevention of disability with a stray finger preferred optical path. The wheel is very small, and I found it hard, bring precise focus of the image.

Optoma PK320 offers a much wider range of connectivity options, including HDMI, VGA and composite video. It can run also presentations from internal memory, a micro SD card or USB stick.

Installation and operation
The projector can be operated via an AC adapter or USB port of a computer. It comes with a USB cable, which to the projector with a USB 3.0 port connected. It is a Y-cable with 2 x USB type-B connector for the computer, so that you can run power and data over the wire. You take a hit in brightness when it makes the projector over the USB cable.

When you close the C120 USB port on the computer, the projector installs a driver on your system. You have to agree to the installation by clicking on the appropriate button in a popup window each time, when you use the projector. I have the projector with 3 laptops, and was able, run it on all three. But for one of them, I could just run some time, and not in a position to determine why it does not work consistently. Also, regardless of what laptop I used seemed fussy the USB connection and was sometimes lost. Stripping and that re plugged the cables in this largely resolved.

If I were to install the driver, it would the laptop screen to 800 x 600 pixels, size closer to the resolution of the projector. You can then size; the screen through the Windows Control Panel the projector supports resolutions of up to 1,280 by 800 and okay at this resolution, but the image looked better in the lower resolution.

Test
The projector threw a picture about 6 feet diagonal to our test screen of about 8 metres. Although it saw in order, in the darkness, it was adversely affected with modest ambient light, so I have most of the tests with the image size approx. 4 M diagonal.

I found the C120 image quality good for internal presentations (e.g. small working groups). You could it presentations in an emergency for street if you can verify that it easily connects to your laptop via USB - in this projector USB is the only game in town. Colors seemed pretty true; There were references to the rainbow effect for DLP projectors where bright areas against dark backgrounds in small blue-green rainbow can break. Focus seemed somewhat soft, and text was not very sharp. Video quality was okay for short clips as part of a presentation.

An only-USB Pico Projector - and as such, the C120 is unusually bright - offers the advantage of the low price and - at least in theory - easy installation and operation. Disadvantages are that it is not as versatile as a fully functional model such as the Optoma PK320, and it is a one-trick pony - if you have problems connecting via USB, you have no other options. (If the C120 driver is not loaded, restart of the laptop will sometimes solve it - although you would not want to do, if you are time pressed and have presented on the road to a small group.) You want not the USB Y-cable, set are not as simple as cable USB 3.0 plug, as to find the previous cables.

If USB connectivity is everything what you are looking for in a pico projector, the Acer C120 can your model of choice. It is significantly brighter than the ray Lite and other USB only viewers, those which we have looked at and less expensive than fuller recommended models.

VERGLEICHSTABELLE
Compare Viewer with several other projectors side by side the Acer C120.

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• InFocus IN1126
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The InFocus IN1126 ($ 1.099 direct) is a compact and very lightweight - yet - bright data projectors designed for business travelers who need to frequently make presentations to small groups. Although it is very portable, you must install your computer or other input source run presentations from, as there is no port for a USB flash drive. The image quality is fine for typical data presentations.

The IN1126 is rated at 3000 lumens brightness. It has native WXGA (1,280 by 800) resolution, compatible with widescreen notebooks with 16: 10 aspect ratio. It measures 2.8 by 8.6 by 7 inches (HWD) and weighs 3.4 kg. This black and boxy projector has wheels, zoom and focus; It was easily enough to quickly bring it to a fairly sharp focus.

The projector is identical to the InFocus IN1124 in appearance, dimensions and functions ($ 975 direct, 3.5 stars), with the exception that the IN1124 native's limited resolution XGA (1,024 x 768 pixels). The editor ' Epson PowerLite 1775W multimedia projector ($ 1.199 direct, 4 stars) has WXGA resolution; It is wider, but much thinner than the IN1126, and weighs slightly more.

The IN1126 packs a typical range of ports for an ultraportable projector: HDMI; S-video; an RCA Jack for composite video; Audio input; VGA; and a USB-mini-B port that you support, can plug into your computer for wireless mouse, so you can use the projector remote control instead of the mouse, slides and the like ahead.

An interface that would have been, is a useful addition to a USB type A, run a computer-free presentation from a USB stick. Without them, you don't always have lug on a laptop with you; the projector comes with a soft case for protection.

Performance of the IN1126 threw a 6-meter diagonal image on our test screen about 10 meters away well on ambient light with the projector status. In tests with our display inmate suite (www.displaymate.com), data were quite good image quality, fine for typical business presentations. Some minor color issues emerged: white lines against dark backgrounds tend to be yellowish appearance, and there was some yellow fringing on the right and top edges of the projected images. Colors in General - especially yellow and light Blues - saw somewhat darker than they should, and medium gray tones looked slightly greenish.

Also showed the rainbow effect, which often break bright areas into its component colors with DLP projectors, where if one man moves the view (or, in the case of video), when an object moves me in some test images, which tend to bring it. But unless you are a stickler for accurate color or your content required, the IN1126 should display the business presentations up to the task, while you are traveling.

Video quality
The IN1126 video quality is suitable for relatively short clips show during a presentation. The projector has maintained relatively good in details in dark and light areas. Colors looked generally pretty true. The rainbow effect was however more pronounced than with an average DLP projector, and obvious enough to me that that sensitive on it probably would want to see long people videos with this projector.

The IN1126 sound system is more than the most weakly. It was barely audible, even when fully psyched I right next to the projector with the volume was sitting. Although the 1-Watt speakers not work get done, it has a monaural Jack so that you could connect it to external amplified speakers. The InFocus IN1124 has a similarly weak sound system while the Epson 1775W was better.

The InFocus In1126 is well suited for businessmen who need to make frequent presentations on the go, sound, capable, and portable video projector. It has a higher resolution than the similar InFocus IN1124. It is narrower and slightly easier (if not as thin as) the editors' choice Epson PowerLite 1775W. But has the Epson 1775W, Wi-Fi connectivity (via a dongle included), and a port for a USB thumb drive. His photo and video image quality, which very well proved both in our tests, and as a LCD projector, which by their very nature lack the rainbow effect in the IN1126 seen. However, the IN1126 is the value on your list for a ultra-light beamer.

VERGLEICHSTABELLE
Compare the InFocus IN1126 side by side with several other projectors.

More projector reviews:
• AAXA P3
• Acer C120 projector
• InFocus IN1126
• Casio XJ-H1750-Pro series
• InFocus IN1124
• more