Epson rolls out Wi-Fi

Epson rolls out Wi-Fi

Epson's new business projector, the EMP-1715, has dimensions of 192mm x 273mm x 68mm and weighs 1.7kg. A convenient set of connectivity options is hallmarked by the inclusion of an 802.11a/b/g wireless adapter, so the projector can be set up to receive a wireless signal from a PC or a notebook anywhere within range. It's not a completely wireless projector - it still needs to be plugged into a wall outlet so its 2700 ANSI Lumens-rated lamp can project an image up to 750cm in size from 12m away.

Previous attempts by projector vendors to provide wireless connectivity with their projectors have not been overly successful, but with the EMP-1715 it appears that Epson is on the right track to providing a solution that can transfer enough data at a time to ensure that presentations are smooth. To use the projector wirelessly, the host notebook or PC will need to have the special EasyMP software from Epson installed first. We had a little difficulty initially connecting to the projector, using a Centrino equipped Acer notebook.

Once up and running, mouse movements from the notebook were swift and easy to follow, and PowerPoint presentations and images were displayed without significant delay. Screen changes were clean when projecting the entire notebook's desktop, although some artefacts from previous images (such as closed Windows) were visible. We also tested the projector's image quality by plugging a PC into its VGA port and running DisplayMate. After adjusting the brightness and contrast levels, we found the projector was able to capably display light grey colours on a white background and dark grey colours on a black background. This capability was also shown in photographic tests, where the dark areas of test photos were properly displayed and lighter areas were not washed out. Tests in a typical fluorescent-lit office showed that this projector can easily display presentations in a bright room.

The EMP-1715 uses LCD technology, which is prone to giving off a fl y-screen effect, but this was not overly noticeable. However, there was some blurring on the screen, one-third and two-thirds across. Apart from these areas, text was very sharp. LCD projectors are also prone to defective pixels, which show up on the screen.

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