The highest resolution of the PG-LW3500 is WXGA (1280x800). That's 30% more resolution than the most common native projector resolution of XGA (1024x768). Multimedia projectors of a similar age and type to the PG-LW3500 native projector resolutions range from XGA (1024x768) to WUXGA (1920x1200).
It is worth considering alternative multimedia projectors that have a resolution of WXGA (1280x800) including a higher scoring data projector such as the AAXA Technologies LED Showtime 3D, the Hitachi CPWX12WN, or the Panasonic PT-DW640.
If the resolution of this projector is too low for you then you might want to consider the Panasonic PT-DZ680 (WUXGA (1920x1200 and higher rated),WSVGA (1024x576 and higher rated) and higher rated), the NEC NP-PA500 (XGA (1024x768 and higher rated),WUXGA (1920x1200 and higher rated) and higher rated), or the Sony VPLFH36/W (£3,690.52) (WUXGA (1920x1200 and higher rated) and higher rated).