Canon 400mm F/5.6 MIRROR (Catadioptric) Lens Patent
Canon has filed a new lens patent for 400mm F/5.6 MIRROR (Catadioptric) Lens, and this could be an EF-M
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Canon has filed a new lens patent for 400mm F/5.6 MIRROR (Catadioptric) Lens, and this could be an EF-M
Continue reading