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I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO. I'm not sure if this is a camera/brand specific setting.

Is there any particular reason for this behaviour? Are there any scenarios where a different ISO is chosen, as I have not encountered it so far?

I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO. I'm not sure if this is a camera/brand specific setting.

Is there any particular reason for this behaviour?

I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO. I'm not sure if this is a camera/brand specific setting.

Is there any particular reason for this behaviour? Are there any scenarios where a different ISO is chosen, as I have not encountered it so far?

2 added 4 characters in body; edited tags
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I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO? Not. I'm not sure if this is a camera\brandcamera/brand specific setting.

Is there any particular reason for this behaviour?

I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO? Not sure if this is a camera\brand specific setting.

Is there any particular reason for this behaviour?

I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO. I'm not sure if this is a camera/brand specific setting.

Is there any particular reason for this behaviour?

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Why does the camera default to ISO 400 in auto ISO mode with flash?

I've observed this behaviour on my Canon 550D, and I was wondering why it didn't use a lower or even variable ISO? Not sure if this is a camera\brand specific setting.

Is there any particular reason for this behaviour?