i have just got my benq620 today and im soo pleased, im goin to build a screen to mos using a large sheet of plasterboard painted with a white shade of icestorm,
but the image from 3 meters away maximum 16.9 is 72"
is there anykind of lense i can put infront to make the image bigger?
There is a lens advertised in one of the Home Cinema mags, so have a look through there. Another option you might want to consider is an anamorphic lens that will make the image wider and make it 2.35:1 ratio. You can watch 16:9 in the middle just like in a cinema (you may want to use some ordinary curtains to mask the sides for 16:9). Prismasonic and ISCO makes these lenses, but eBay sometimes has anamorphic 16mm and 35mm projector lenses for sale which might work - you will have to measure the widthe of the image coming from the pj a little in front of the lens, and then see if the 16mm ir 35mm anamorphic lens can accept that size of image through its smaller aperture. Find out the length of the lens, and measure your pj image on a piece of white paper the same distanc efrom the pj lens, That will tell you if the image will pass through the anamorphic lens without being cropped.