Tag: EF 400 f/4 DO IS

Canon Lens News

Canon Celebrates Significant Milestone with Production of 150 Million Interchangeable RF And EF Lenses

All Canon seems to do is sell stuff, now surpassing 150 million…

Craig Blair
Craig Blair
Deal Zone

Canon Store Restocked With Refurbished Big White Lenses

The Canon USA online store has minimal stock of some refurbished big white…

Craig Blair
Craig Blair
Canon Reviews

Quick Comparison: Canon’s new 400mm Options

Roger at LensRentals.com has done a quick comparison of the EF 400…

Craig Blair
Craig Blair

Patent: Canon EF 400 f/4 DO IS

A patent for a new Canon EF 400 f/4 DO IS has…

Craig Blair
Craig Blair

Patent: More DO Supertelephoto Lenses

DO appears to still be alive More patents for large Canon DO…

Craig Blair
Craig Blair
Canon Patents

Patent: EF 400 f/4 DO IS II

Another DO patent We haven't seen a new DO lens in a…

Craig Blair
Craig Blair