A small difference in optical performance makes photography ever more pleasant hybrid glass aspherical lens h asp glass aspherical lens asp high refractive extra low dispersion lens hr ed uncoupled aperture and focus gear ring vdslr ii cine lens circular with 6 blades wide angle manual focus cine lens samyang optics 14mm t31 vdslr ed as if umc ii is a wide angle manual focus cine lens designed for full frame sensor sizes cine lens features samy