is it true that lumenlab standard triplet lens for it;s shorter focal length --320mm will project clear image as compared to lumenlab pro triplet lens which has a longer focal length --500mm?
what will be the ideal distance between pro lens and screen for pro triplet lens to project 120 ft-150 ft diagonal size projected image?
QUOTE (dannyss @ Feb 6 2006, 08:32 PM) 
is it true that lumenlab standard triplet lens for it;s shorter focal length --320mm will project clear image as compared to lumenlab pro triplet lens which has a longer focal length --500mm?
what will be the ideal distance between pro lens and screen for pro triplet lens to project 120 ft-150 ft diagonal size projected image?
what will be the ideal distance between pro lens and screen for pro triplet lens to project 120 ft-150 ft diagonal size projected image?
Man that projector would have to be WAYYYYYYY back to project 150 feet.
But if you meant 120-150" then the ratio is for a 15" Lcd.
Standard lens 1:1 ratio. 120" back for 120" diagonal
Pro lens 1.6:1 ratio. 192" back for 120" diagonal
The satndard lens is very good and so is the Pro. The standard lens will project an image with good corner to corner focus with an Lcd up to 15" . The Pro is for larger Lcd's.
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