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![Video: Comparing Canon's USM and STM Lenses Using the 70D's ...](https://www.iarticlesnet.com/pub/img/site/s_32.jpeg)
Video: Comparing Canon's USM and STM Lenses Using the 70D's ...
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日期:2024-08-08
By comparison, the STM lenses really are almost silent, as they were built with video in mind — rodents need not apply. Their focus speed, while a tiny bit slower ......看更多