Google Tech TalksJanuary 31, 2007ABSTRACTPhotographic Technology Day 3: Ray Tracing, Lenses, and MirrorsIn this lecture, we will study the principles of ray tracing for simple...
Sometimes what's old becomes new again. It happens in music, fashion, even eye care. Optometrists at Mayo Clinic are using a type of lens originally...
Tamron launched the SP AF70-200mm F/2.8 Di LD (IF) MACRO, a lightweight, high-performance and fast tele-zoom lens designed for DSLR cameras with 35mm full-size image...
Nigel Atherton of What Digital Camera previews the latest releases on the Sigma stand. Including the lenses APO 200-500mm f2.8 (400-1000mm with matched 2x...