The highest resolution of the PowerLite S12+ is SVGA (800x600). That's 53% less resolution than the most common native projector resolution of WXGA (1280x800).
This multimedia projector's resolution (SVGA (800x600)) is in fact the worst resolution across all 3000:1 contrast ratio multimedia projectors that are older than two years.
Across similar types of multimedia projector the best resolution is WUXGA (1920x1200).
It is worth considering different data projectors that have a resolution of SVGA (800x600) including a higher scoring projector such as the Epson VS220.
If the resolution of this 3000:1 contrast ratio multimedia projector is not high enough for you then you might want to also look at the NP-VE281X (XGA (1024x768)), or the M361X (XGA (1024x768)) both from NEC or the Infocus IN5132 (£1,999.99) (XGA (1024x768)).