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CMS-XML Lenses that support changes in the AF speed on the EOS C500 Mark II
Lenses that support changes in the AF speed mm f/4-5.6 IS II USM EF 16-35mm f/2.8L III USM EF -S 18-55 mm f /4-5.6
CMS-XML Recovering from a failed firmware update procedure with the EOS 1Dx or EOS 5D MkIII and EF 40mm f2.8 STM
For the EOS 5D MkIII We have found that the EF 40 mm 2.8 STM firmware update failure with the EOS 5D Mark III can occur if the camera has Battery Info Registered and if the Battery Info is checked right before the firmware update is applied. To restart the firmware update please follow the below procedure.
CMS-XML EF50mm f/1.4 : Here is a list of the parts and controls - Nomenclature.
EF 50 mm f /1.4 : Here is a list of the parts and controls - Nomenclature.
CMS-XML EF 50mm f/1.4 USM Angle of View
EF 50mm f/1.4 USM Angle of View 46° Source: Canon USA EF Lens Page - Lens Chart
CMS-XML EF 85mm f/1.8 USM Angle of View
EF 85mm f/1.8 USM Angle of View 28°30" Source: Canon USA EF Lens Page - Lens Chart