Vivitar 7mm Or Rokinon 8mm Fisheye
Posted 06 March 2012 - 02:14 AM
Posted 06 March 2012 - 11:37 AM
The Opteka "6.5mm", Vivitar "7mm", Samyang 8mm, Rokinon 8mm, ProOptic 8mm, Bower 8mm, etc. SLR/DSLR fisheye lenses use the SAME. EXACT. GLASS.
Also, save for red stripe/text and different focus ring rubber on the Vivitar, they have the same bodies too.
In a nutshell, all those lenses are the same lens with different markings.