Canon Patent: 135mm f/2, 400mm f/4 and 50mm f/2.5 defocus smoothing
New Canon Patent applications filed for a set of RF mount lenses with electronically controlled Defocus Smoothing (DS). Defocus Smoothing is…
Canon RF 135mm f/2 Lens
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Canon Patent for RF 130mm f/2 Lens
Here is a new Canon patent describes an optical formula for a RF 130mm f/2 lens. Designed for the EOS R…