Imaging recource: Could this 20mm f/2.8 lens patent be Canon’s next pancake lens?

A new patent from Canon details the schematics for an EF-S 20mm f/2.8 STM, a lens that could very likely be Canon’s next pancake lens for APS-C DSLRs. Originally filed back in December of 2013, Patent Publication No. 2015–111192 (translated) shows a 20mm lens made up of six elements in five groups. Focusing for the lens is done through Canon’s Stepping Motor Technology (STM), enabling smooth focus transitions when shooting in video mode, which all Canon APS-C DSLRs are now capable of.   The Canon EF-S 24mm...
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