Tag: EF 800 f/5.6 DO IS

Patent: More diffractive optics super telephoto lenses

I'll be honest, the first 20 or so patents relating to diffractive…

Canon Rumors

Canon EF 800mm f/5.6 DO IS in Development? [CR2]

When Canon updated the EF 400mm f/4 DO IS with a verison II,…

Canon Rumors