New Canon Patent for Three DO Telephotos

Canon Patent

Canon has just released a patent application for three DO telephoto prime lenses, They are 800mm F5.6, 400mm F2.8 and 200mm F2.0.

This means Canon is continuing to work on DO technology. It seams they reduce the occurrence of  flare when using DO elements.

Stay turned..

Source: CanonNews

Read More Canon Lens Patent

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