Originally Posted by JapanDave
Very misleading statement. To some people an image @ 21 ft may appear soft to them, other not and other may find an image @16 ft not soft. What are you basing this on?
Simple 20/20 vision, compare the image from 21ft and then from 16ft, the image viewed from 21ft will be sharper
than the image viewed from 16ft. For an individual with 20/20 vision the optimal image quality will be seen from 21ft, if ones vision is better than 20/20 the image will be sharper from an even greater distance.
Will 16' be optimal under those circumstances....no. Will the image be too
soft, acceptable? 167" screen and 16' with 1920 x 1080.....that's up to the viewer to decide.......
55-60 pixels per degree with 20/20. At 44 degrees that requires a source and display capable of 2420 x 1361...........4k source & displays should more than address those needs.