Patent: More diffractive optics super telephoto lenses
I’ll be honest, the first 20 or so patents relating to diffractive optics lenses had me excited about what was coming down the pipeline. However, Read more…
- Source: Canon News
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, most felt that was a good sign they were still developing DO technology and Read more…
