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...
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...
Wild Eyes colored contacts are a line of lenses that offer interesting designs like black-out and vampire lenses. Play with Wild eyes colored contacts with...
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...