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Forums > Back > next PZ lens test report: Canon EF 24-70mm f/4 USM L IS
HarryLally
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#11
03-04-2013, 04:18 PM
I tend to agree with you2....i.e. I don't understand either. Why would changing a physical aperture on a lens change the point of focus? Does anyone know the mechanism for this?

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next PZ lens test report: Canon EF 24-70mm f/4 USM L IS - by HarryLally - 03-04-2013, 04:18 PM
next PZ lens test report: Canon EF 24-70mm f/4 USM L IS - by HarryLally - 03-04-2013, 06:46 PM
next PZ lens test report: Canon EF 24-70mm f/4 USM L IS - by kirbysdl - 03-04-2013, 11:09 PM

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