* * * See how Nikon is trying to play catch up to Canon * * *
* * * See the latest Diffractive Optics lens Canon is working on * * *
Canon announced the EF 400mm f/4 DO IS II lens on September 11. This is one of my favorite Canon lenses and I placed my order right after the announcement and have received the new model. This glass is about 13 years in the making. The original model was introduced in 2001 and it had one of the earlier version of Image Stabilization with a 2 stop advantage.
You can read my review of the new lens. I will be taking it out very soon on a real world overseas photo shoot for an extensive test. The Canon video below explains the Diffractive Optics technology, Fluorite Elements and more.