The Casio Slim XJ-A146 is the XGA equivalent of the Casio Slim XJ-A246 ( and carries its higher-resolution sibling's key features: Casio?s unique hybrid LED-laser light engine with a long-lasting, eco-friendly light source; HDMI and Wi-Fi connectivity, the ability to run presentations off a USB thumb drive; 2x zoom, and 3-year warranty among them. It also shares the XJ-A246's downsides: a relatively steep price; tinting in data images, and more rainbow artifacts than usual for a DLP projector in video.
The XJ-A146 is rated at 2,500 lumens, and the projector has XGA (1,024 by 768) native resolution, as opposed to the WXGA (1,280 by 800) resolution of the XJ-A246. Casio's hybrid light engine is the same we've now seen in several generations of Slim and Green Slim projectors. ?Instead of producing red, green, and blue using a standard lamp and a color wheel, it produces red with LEDs, blue with lasers, and green by shining blue laser light on a phosphor. Its optical system directs the red, green, and blue light to the
The projector's LED lamp is designed to last up to 20,000 hours, far longer than typical projector bulbs?and it?s mercury free. The projector (including the bulb) is backed by a generous 3-year warranty, though it's likely the bulb will last the life of the projector.
True to its name, the Slim is very svelte, measuring 1.7 by 11.7 by 8.3 inches and weighing 5.0 pounds. It comes with a soft carrying case for easy portability. It sports a futuristic look, with rounded edges and lens set far to the side. There are no manual lens sliders or wheels; you can change focus or zoom (a generous 2x zoom) either with the remote or from touch-sensitive nubbins on the projector itself. It has automatic keystone correction, though you can also manually correct keystoning through the remote.
Ports include VGA; AV-in; HDMI; serial; and a USB type A port. You can run presentations computer free from a USB thumb drive plugged into the port. You can attach a wireless LAN adapter to connect with WiFi-enabled Android, iOS, and Windows Mobile smartphones and computers (PC or Mac) running MobiShow software, so you can run a presentation from these devices.
Testing
I tested the projector from about 10 feet away from our test screen, where it projected an image about 60 inches, measured diagonally. The image looked slightly washed out, though still usable, when exposed to a fair amount of ambient light.
I tested data image quality using the DisplayMate suite with the room darkened. Quality was about average for an XGA data projector, though I noticed several issues. While I could bring the rest of the image to a sharp focus, the focus was a bit soft in the upper left corner. In our text tests, type wasn't quite as sharp as we'd like. The smallest size white-on-black type was blurred enough to be barely readable, and it was a bit blurred at the next smallest size as well as the smallest black-on-white.
Colors were bright in Standard mode, though there was also a bit of tinting. Some grays looked slightly green, and white backgrounds had a mild greenish tinge as well. Switching from Standard to Graphics color mode reduced the tinting, but it also muted the colors somewhat. Switching from a VGA to an HDMI connection had no appreciable effect on image quality, which is good enough for typical business presentations, but perhaps not for ones in which exacting color is important.
Video was of a quality suitable for showing short clips as part of a presentation. The chief issue was the appearance of rainbow artifacts: Little red-green-blue flashes, especially in scenes with high contrast between dark and light areas. Few DLP projectors are totally free of it, and people vary in their sensitivity to it, but with the XJ-A146 it was a little more obvious than usual. ?It would likely be distracting to people who are sensitive to it.
Audio was of decent quality and of good volume for a 1-watt speaker, loud enough to fill a small to midsize room.
The Editors' Choice Epson PowerLite 1775W Multimedia Projector has a similar form factor and feature set, but is even lighter (3.8 pounds) and brighter (3,000 lumens) than the XJ-A146. It also packs a higher (WXGA) resolution, the same as the Casio XJ-A246. The Epson 1775W has better still and video image quality, and not being a DLP projector is free of rainbow artifacts. But it lacks the XJ-A146's unique light engine and long-lasting, eco-friendly bulb.
Between the two Casio Slims, if you want higher native resolution and a widescreen aspect ratio, the Casio XJ-A246 is the one to get. The XJ-A146 also had slightly more image quality issues in our testing. Otherwise, they have the same basic feature set, and you can save $100 with the Casio Slim XJ-A146.
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