The Acer H9505 supports a maximum resolution of 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) projector, which is the most frequently found resolution supported by 10000:1 contrast ratio projectors that have been available for more than two years. This data projector also supports a graphics resolution of 1920 x 1080 (HD 1080).
A 1920 x 1200 (WUXGA) graphics resolution is actually the best supported resolution across all multimedia projectors that came out around the same time as the H9505.
The worst supported resolution amongst similar types of projector is 640 x 480 (VGA).