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Automatic focus I have a canon 30 D, and use a 1 - 400 lens,canon of course, when I put my canon extender ef 1.4x11 will the camera automatic focus or do I need to do this manuelly?

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I still don't have a digital SLR camera, but on the old Cannon film SLRs, the focusing motor is within the lense itself. The extender should have contacts to transmit the signals from the body to the lense. Visually inspect the extender, otherwise you'll be forced to go manual.

Posted on Apr 15, 2008

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