Canon EOS R "M mode"

[docusync]

I shoot a lot with strobes in the M mode. Pretty much always I need my ISO to stay at 100.

So I set it to 100 and shoot, but it goes back to Auto if I look at the taken images (view/play mode).

This is extremely annoying - I've ruined lots of images because I have to remember to dial the ISO down after each "chimping".

Is there a way to have the ISO permanently locked as it supposed to be in the M mode? Thanks!

[kvbarkley]

Have you tried one of the C modes?

[RobertTheFat]

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@kvbarkley wrote:

Have you tried one of the C modes?

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Actually, I was going to ask that question, but in the other direction. The cameras I've owned have seemed more likely to revert to their specified settings in the C modes. I might suspect that the OP's camera is already in a C mode and that that's why it's reverting.

IIRC, the most recent members of the 5D series have a setting that tells it not to revert in such a situation. I'd expect the R to behave similarly.

[Waddizzle]

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@RobertTheFat wrote:

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@kvbarkley wrote:

Have you tried one of the C modes?

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Actually, I was going to ask that question, but in the other direction. The cameras I've owned have seemed more likely to revert to their specified settings in the C modes. I might suspect that the OP's camera is already in a C mode and that that's why it's reverting.

IIRC, the most recent members of the 5D series have a setting that tells it not to revert in such a situation. I'd expect the R to behave similarly.

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That thought crossed my mind, too.  Except the OP says that his camera is in Manual shooting mode.  

[RobertTheFat]

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@Waddizzle wrote:

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@RobertTheFat wrote:

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@kvbarkley wrote:

Have you tried one of the C modes?

---

Actually, I was going to ask that question, but in the other direction. The cameras I've owned have seemed more likely to revert to their specified settings in the C modes. I might suspect that the OP's camera is already in a C mode and that that's why it's reverting.

IIRC, the most recent members of the 5D series have a setting that tells it not to revert in such a situation. I'd expect the R to behave similarly.

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That thought crossed my mind, too.  Except the OP says that his camera is in Manual shooting mode.  

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When you create a C mode configuration, doesn't it preserve whatever dial mode you were in? And can't that be M?

[Waddizzle]

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@RobertTheFat wrote:

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@Waddizzle wrote:

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@RobertTheFat wrote:

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@kvbarkley wrote:

Have you tried one of the C modes?

---

Actually, I was going to ask that question, but in the other direction. The cameras I've owned have seemed more likely to revert to their specified settings in the C modes. I might suspect that the OP's camera is already in a C mode and that that's why it's reverting.

IIRC, the most recent members of the 5D series have a setting that tells it not to revert in such a situation. I'd expect the R to behave similarly.

---

That thought crossed my mind, too.  Except the OP says that his camera is in Manual shooting mode.  

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When you create a C mode configuration, doesn't it preserve whatever dial mode you were in? And can't that be M?

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Yes.  But when you open the Quick Menu or Info screen the shooting mode would show “C1m”, for Custom Mode 1.

[docusync]

Guys, thanks for your replies. I tried different scenarious today, and was able to isolate the issue.

My M-Fn bar is set to ISO, and I'm also using a ring adapter, which is set to ISO as well (much more convenient compared to the bar).

If I set the ISO to Auto or any particular number via the settings (Q/Set) - it stays there no matter what I do (good!).

Now, if it's set to Auto via Q/Set, and I want to dial it down to 100 via the M-Fn bar or the ring - that's where it doesn't work. I mean it works, but only if I keep shooting and don't chimp. A switch to the view mode kills it and turns into Auto. If I set the ISO to a number, and then change to a different number via the ring - everything seems ok.

Seems buggy / unpredictable to me, but at least now I have a workaround (use the Q/Set button and do not rely on the ring).