The latest patents from Canon and Ricoh

Canon EF 20-45mm f:2.8-4 lens patent
→ Canon filed a new patent for EF 20-45mm f/2.8-4 lens.

Canon 25-125mm f:2.8 Super 35 mm lens patent
→ Canon has another patent for a 25-125mm f/2.8 lens (Super 35 mm).

Canon EF-S 55-200mm f : 4-6.3 STM lens patent
Another Canon patent is for a EF-S 55-200mm f / 4-6.3 STM lens.

Ricoh AF tracking of celestial bodies patent
→ Ricoh filed a patent for AF tracking of celestial bodies (for astrophotography).

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