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Birdeye · 03-02-2018

I purchased the 1.4x Extender iii to use with a Canon 70D and the Canon EF 100-400mm f/4.5-5.6L IS II USM lens. I am not able to find setting for which the AF will work when looking through the viewfinder. The AF will work in live view. My question i...

Birdeye · 03-03-2018

Good point! I had forgotten about the split image. We got by not know anything about the coming technology. I wonder what is around the corner that we can not now concieve. Will we be saying some day that all we had was a hunting AF? I hope, RobertT...

Birdeye · 03-03-2018

ebiggs1: Yes, I have called Canon tech support before and have been satisfied with the answers. This time around however I got a guy who did not leave me with a lot of confidence in the correctness of what he said. His answers did not explain things ...

Birdeye · 03-03-2018

ebiggs1: Yes, indeed. I began with a Canon AE1 in 1978 however none of my bird photos from the film days compare with what digital today can do. I find on the bird websites some incredible shots from average photographers. Most people who take bird p...

Birdeye · 03-02-2018

Thanks diverhank! I've read about this online and have wondered if equipment could be damaged that way. Also, setting the lens to manual works better than live view -- I photo birds and the eye must be in focus or you really don't have a picture (hen...

Birdeye · 03-02-2018

Thank you MikeSowsun and Waddizzle! Your explanations are clear and very helpful I am certain others will benefit as well from your responses. By the way, your information is much more to the point and understandable than what I received from Canon t...

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1.4x Extender iii function

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