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Canon EF 500mm f4 IS L (mark 1, NOT the mark II) playback ring question

Started 8 months ago | Discussions thread
OP David Pastern Contributing Member • Posts: 847
Re: Canon EF 500mm f4 IS L (mark 1, NOT the mark II) playback ring question

Kameratrollet wrote:

Press the buttom when the focus is correct to save it. Turn the ring when you want to archive the same focus.

This will probably not work if you use a mirrorless camera.

Thank you!  I figured this out by playing around with it this arvo.  Interesting to know that this will probably not work with a mirrorless camera - any reason why?

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