I have few stupid questions... I see mainly converging lenses collecting rays to one poit (pix A) but do they work another direction? (pix B) any differet solutions/ something usefull to know? I know I could use image conduit but they don't have enought resolution for 2000-3000 pixel CCD-bar/21mm wide...or I'm wrong? :?: In pictures arrow shows direction of ray. [img:69a467de05]http://weightweenies.starbike.com/phpBB2/files/lensdemo_180.jpg[/img:69a467de05] Another Q is about focusing. Is there difference in working of D ja C assebly pictures? Are they equal?