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7D button rebinding and autofocus issues?

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Irematic View Drop Down
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Post Options Post Options   Quote Irematic Quote  Post ReplyReply Direct Link To This Post Topic: 7D button rebinding and autofocus issues?
    Posted: 14 July 2020 at 18:02
I've been using my 7D for bird shots a lot lately and I was wondering if there is a way to rebind the functionality of any of the buttons to changing the ISO setting? I normally shoot at around 800 ISO for things in the shade, but like to switch to ZMH for anything in the daylight, is there any way to do that on the fly without menu diving?

Also, is there some kind of difference in the autofocus mechanism when it cones to zoom and prime lenses? My body will drive any prime lens I've come across, including third party stuff, just fine, but for whatever reason, it's unable to correctly focus zoom lenses. It makes abnormal mechanical noises like it can't fully engage the screw, tries to cycle the lens through the entire focusing range, and then goes blank and needs to be rebooted. I ran into this with the original 1980s 28-85 and 70-210/4, but for whatever reason it handles the original 75-300 just fine.
 



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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2020 at 19:24
Originally posted by Irematic Irematic wrote:

I've been using my 7D for bird shots a lot lately
Without pictures it did not happen!

Originally posted by Irematic Irematic wrote:

and I was wondering if there is a way to rebind the functionality of any of the buttons to changing the ISO setting? I normally shoot at around 800 ISO for things in the shade, but like to switch to ZMH for anything in the daylight, is there any way to do that on the fly without menu diving?
What is ZMH?

The 7D has a dedicated ISO button, it might not be as easy located as you want, but it works well enough.
Also, the 7D has three memory positions, you could set one up for birding, another one for good weather and a third one for any other kind of photography you do.

Edit: just thought about the P program setting for this: it is auto ISO.

Originally posted by Irematic Irematic wrote:

Also, is there some kind of difference in the autofocus mechanism when it cones to zoom and prime lenses? My body will drive any prime lens I've come across, including third party stuff, just fine, but for whatever reason, it's unable to correctly focus zoom lenses. It makes abnormal mechanical noises like it can't fully engage the screw, tries to cycle the lens through the entire focusing range, and then goes blank and needs to be rebooted. I ran into this with the original 1980s 28-85 and 70-210/4, but for whatever reason it handles the original 75-300 just fine.
Never heard this before. Just tried my 7D with the 24-85/3.5-4.5 and 70-210/4 Beercan and it behaves just normal with these lenses. There were some problems with the Sigma 24/2.8 as the screw drive slot on the lens did not fit the drive on the camera - but with original Minolta lenses, I cannot remember anybody mentioning this. Also, the body going blank points to an electronic issue, not a mechanical one I think.

Did you clean the contacts of the body and the lenses?
Do you have access to another body? Either a Sony A-mount DSLR or Minolta film camera? How do these lenses behave on that body?

Edited by addy landzaat - 14 July 2020 at 19:41
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