Patent: Canon EF 50 f/1.8 IS

Canon EF 50mm f/1.8 IS
A patent has show up showcasing an EF 50 f/1.8 IS lens. Could this be the replacement to the 50 f/1.4? We had heard about this lens existing last year. While some may desire a direct 1.4 replacement with IS, I think Canon may want some separation between the EF 50 f/1.2L and the next 50 in the lineup. We've also heard of a new EF 50 f/1.2L design being tested.

Patent Publication No. 2013-142782

• Publication date 2013.7.22
• Filing date 2012.1.11

Example 1

• Focal length f = 51.51mm
• Fno. 1.85
• Half angle ω = 22.78 °
• Image height 21.64mm
• The overall length of the lens 76.78mm
• BF 37.84mm
• 8 pieces of 7 lens configuration

Source: [EG]

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