topic Re: Minimun shutter speed for ISO Auto 6d Mark II in EOS DSLR & Mirrorless Cameras

Minimun shutter speed for ISO Auto 6d Mark II

Lynnea1941 — Sat, 28 Apr 2018 19:22:33 GMT

I'm not clearly understanding the manual: "You can set the minimum shutter speed so that the shutter speed set automatically will not be too slow when ISO Auto is set. This is effective in the <P> and <AV> modes when you use a wide-angle lens to shoot a moving subject or when you use a telephoto lens. It helps to reduce camera shake and blurred subjects.

I can further see that it is possible to set the Auto to a slower or faster speed than the standard.

Is it not possible to set the minimum shutter speed to Auto with a faster setting (compared to standard) while in Manual mode?

Or, is it possible to do this, but it is just not effective?

Lynnea

Re: Minimun shutter speed for ISO Auto 6d Mark II

kvbarkley — Sat, 28 Apr 2018 19:35:05 GMT

You can set whatever speed you want in manual.

Re: Minimun shutter speed for ISO Auto 6d Mark II

Lynnea1941 — Sat, 28 Apr 2018 20:06:17 GMT

I'm sorry, but I meant the setting for ISO Speed Settings.

I believe, thought, that I did find my answer.

I have chose M mode and Auto ISO so my understanding now is that this already sets the minimum shutter speed, and I would not need to be concerned with the ISO Speed Setting.

Thanks for replying.

Lynnea

Re: Minimun shutter speed for ISO Auto 6d Mark II

RobertTheFat — Sat, 28 Apr 2018 20:26:24 GMT

@Lynnea1941wrote:
I'm sorry, but I meant the setting for ISO Speed Settings.

I believe, thought, that I did find my answer.

I have chose M mode and Auto ISO so my understanding now is that this already sets the minimum shutter speed, and I would not need to be concerned with the ISO Speed Setting.

Thanks for replying.
Lynnea

In M mode the shutter speed is whatever you set it to be; there is no "minimum" or "maximum". In Av mode with auto-ISO, the minimum shutter speed is the limit to which the shutter speed will be reduced before the ISO speed starts to be increased. I believe (though I'm not sure) that the shutter speed can go even lower, but only after the ISO speed has reached its maximum value.

Re: Minimun shutter speed for ISO Auto 6d Mark II

Waddizzle — Sat, 28 Apr 2018 23:40:40 GMT

@Lynnea1941wrote:
I'm sorry, but I meant the setting for ISO Speed Settings.

I believe, thought, that I did find my answer.

I have chose M mode and Auto ISO so my understanding now is that this already sets the minimum shutter speed, and I would not need to be concerned with the ISO Speed Setting.

Thanks for replying.
Lynnea

Yes, you are correct. Av mode allows for constant aperture. Tv mode allows for a constant shutter speed. If you want both to be a constant, then you need to use Manual mode. The camera body can automatically set all three legs of the Exposure Triangle for you, like Green [A] mode. It can also set any two, any one, or none of the legs of the Exposure Triangle for you.

I shoot in Manual mode, with ISO Auto, most of the time. The lower the ISO, the better. So, the camera allows you to set a maximum ISO setting that can be used when the camera is in ISO Auto mode. I set my 6D2 to max Auto ISO = 12800.

If the camera wants a higher ISO, then I use exposure compensation to dial down the exposure, which is pretty rare, actually. This approach is the exposure triangle at work.

Re: Minimun shutter speed for ISO Auto 6d Mark II

ebiggs1 — Mon, 30 Apr 2018 14:40:05 GMT

"I have chose M mode and Auto ISO..."

Keep in mind, this is not 'manual' mode. Anything you have the camera select something for you it is not manual mode.