Archive for: high performance

APS-C 11mm f/2 Patent

A patent for a super high performance APS-C lens has been issued. The lens is a 17mm equivalent on a crop camera. It’s said to have super performance.

• Patent Publication No. 2011-65138
• Published 2011.3.31
• Filled 2009.8.17
• Focal distance f = 11.1mm
• Fno = 2.0
• Half angle of view 49.7 deg.
• Aspherical 3
• Image height 13.20mm

From Egami

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