RF 28-70 f/2.8L / Список статей

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12:17

Refurbished Canon RF 28-70mm f/2L USM $2199 (Reg $2899)

Canon USA has restocked refurbished copies of the Canon RF 28-70mm f/2L USM and you can grab one for $2199 (Reg $2899). Key Features Refurbished Canon RF 28-70mm f/2L USM $2199 (Reg $2899) Go to discussion... Source

14:35

Patent: Very small large aperture zoom lens optical formulas

Canon has published a pretty interesting optical design patent for large aperture zoom lenses. The two designs in this patent are pretty interesting. Canon’s goal Read more... The post Patent: Very small large aperture zoom lens optical formulas appeared first on Canon Rumors - Your best source for Canon rumors, leaks and gossip.

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