SECAM Resolution
In this case, features SVGA-projector (800×600) may not be enough. This is due to the fact that in any of the most common video standards the number of visible rows of television does not exceed 600 (488 lines in ntsc, pal, 576 lines in pal and SECAM). The format of displayed image will be the same as on a normal tv, ie 4:3. If the projector will be used to view DVD-ROM or satellite television, the atmosphere of the cinema will wide format with a 16:9 aspect ratio. This format supports projectors with a resolution of W-SVGA (848 x 480) and W-XGA (1366 x 768 or 1280 x 720 pixels).
Choosing resolution multimedia projector, you should consider term. Development of computer technology, and video standards, leading to a permanent increase in use permit. With the mapping of the same lower resolution of any projector will cope much better than the other way around. Projector Contrast Ratio Projector Contrast (contrast ratio) – is another important indicator for assessing the quality of images in multimedia projectors. On its magnitude depends on the depth of the transfer of shade image distinguishability of details in the darkest and in the lightest areas. At the contrast ratio is necessary to pay special attention when choosing a projector for home cinema: in low contrast do not you just see all the details of dark scenes, which are not uncommon in contemporary video. Image One important advantage of multimedia projectors in comparison with other devices to display information is that with their help can not get tough fixed image, and adjust its size at will – depending on room size, area of the projection screen, their own tastes and preferences.