Busting the Lens dictates Focus Speed Myth

Started Mar 22, 2013 | Discussions thread
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Tinu_ch Contributing Member • Posts: 660
One Shot vs Servo

With stationary subjects focus speed rarely is an issue. AF speed is critical for tracking moving subjects especially with long lenses. That's where ring-type USM takes the lead.


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Sony RX100 Canon EOS 5D Mark II Canon EOS 7D Canon EOS-1D Mark IV Canon EF 500mm f/4.0L IS USM +7 more
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