EOS R5 Mk II Shutter buttoner "AE lock (while button pressed)"

[pedz]

I'm trying to slowly work up a bunch of notes on Canon cameras.  I've mentioned this before in this forum.  I've never really thought about it before but the shutter button on this camera and I think every Canon camera I've ever owned can be set to "AE lock (while button pressed)".  On the R5 Mk II, this setting can only be put on the half press of the shutter button.

I didn't realize this but "metering" is active all the time.  I set my camera to manual mode with auto ISO and as I pan around, the ISO is changing without me touching the shutter button.  It doesn't matter how the half press of the shutter button is programmed.  Without touching the shutter at all, the ISO changes as I pan around.

The "metering start" that the other possible options of the half press of the shutter button can be set to is actually not really true.  Metering is started as soon as the camera comes out of sleep.

Just as the text says, when the half press of the shutter button is programed to "AE lock (while button pressed)", the AE is locked when the shutter is half pressed.  In my test, the ISO is fixed while I pan around.  With the other three possible settings, the ISO continues to change as I pan around while half pressing the shutter button.  (Again... no surprised).  The surprise to me is that metering is always active unless the camera is sleeping.

[pedz]

I might misunderstand what you are saying but I just assigned AF Point Selection to my AF-On button and my AF Point selection button at the same time.

[Waddizzle]

“ I might misunderstand what you are saying but I just assigned AF Point Selection to my AF-On button and my AF Point selection button at the same time. “

I think you misunderstood me. Those two entirely different functions. They have different names.

You should not be able to assign AF Preview to both buttons, for example. That’s what I meant.

If you try, the first button should revert back to its defaulr, or something else entirely. You seemed to indicate that you were trying to assign AE LICK to two different controls. 

[pedz]

Now I'm even more confused.  The functions I am referring to are listed in "Functions available for customization" listed on this page. (You need to scroll down some).  The function I assigned was "AF Point Selection" which is the third entry in the table.  That is one function.  I assigned that function to two buttons: the AF-On button and the AF Point Selection button -- buttons 17 and 18 as shown in the second diagram (of the back of the body) shown on this page.  And... I don't know what you mean by the "AF Preview" function.

[Waddizzle]

“ Now I'm even more confused. “

Do you have a specific question? You are confusing me.  Do not try to assign the same function to more than one control. That’s the rule.

[pedz]

But what you are saying is not true.  That's my point.  I have successfully done it.

[jrhoffman75]

Yes it can be done. Has your original issue been addressed or do you want to re-state it. 

[pedz]

I never had an issue.  I was simply sharing what I have recently learned thinking it might help others.

[jrhoffman75]

Maybe you want to check solved then. 

[Waddizzle]

“ But what you are saying is not true.  That's my point.  I have successfully done it. “

You have not successfully done anything. You are jumping to shallow conclusions.

The Shutter seems to be an exception.  For example, the “AF Start” & “Metering Start” functions are on both the [Shutter] and [AF ON] controls by default.

I suggest that you try your test with two different controls other than the Shutter. You should not be able to assign the same function to two separate controls. If you can, then I would consider that to be a firmware issue.  

[jrhoffman75]

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@Waddizzle wrote:

“ But what you are saying is not true.  That's my point.  I have successfully done it. “

You have not successfully done anything. You are jumping to shallow conclusions.

The Shutter seems to be an exception.  For example, the “AF Start” & “Metering Start” functions are on both the [Shutter] and [AF ON] controls by default.

I suggest that you try your test with two different controls other than the Shutter. You should not be able to assign the same function to two separate controls. If you can, then I would consider that to be a firmware issue.  

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Not sure why you say this. Triple back button focus that many wildlife/bird photographers use is a prime example.