[OM] Re: Boy, did I stir up a storm !

[Chuck Norcutt]

They also have a 70-300 DO lens.  I saw some shots from that and 
considered it the world's worst bokeh.  There were concentric circles 
visible in the bokeh from the diffraction grating.

Chuck Norcutt

Winsor Crosby wrote:
> Canon makes a long lens that has a diffraction grating to bend the  
> light as one of the elements instead of a lens element. It allow a  
> reduction in length of about a third, I think. You do have to admire  
> Canon plunging into new technology and creating the environment  
> everyone else works in.
> 
> http://www.dpreview.com/news/0009/00090604canon_400do.asp
> 
> 
> 
> Winsor
> Long Beach, California, USA


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