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What does the EF mean on my Canon lens? - Improve Photography - Photography tips for photographers a
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日期：2024-08-23
Canon EF lenses have been around since 1987 and were used on film SLR cameras. EF stands for "Electro-Focus" for the motor built into the lens. ... A lens mount is the standard or pattern that is used to connect the lens to the camera. Canon uses a standa...看更多
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