Exposure compensation in Manual mode?

Started Nov 23, 2011 | Discussions
Pit123
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Exposure compensation in Manual mode?
Nov 23, 2011

Hi
For birding with 7D, I like to keep control of both shutter and F number.
So the M mode is nice in combination with Auto ISO.

However, sometimes I would like to, very quickly, be able to compensate the exposre a step or two by rising or lowering the ISO.
Any idea how to do this quickly without moving away from M mode?

Canon EOS 7D
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Bruce Miller
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 23, 2011

By changing the shutter speed or aperture.

Pit123 wrote:

Hi
For birding with 7D, I like to keep control of both shutter and F number.
So the M mode is nice in combination with Auto ISO.

However, sometimes I would like to, very quickly, be able to compensate the exposre a step or two by rising or lowering the ISO.
Any idea how to do this quickly without moving away from M mode?

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Bruce

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Endrick Man
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 23, 2011

Very simple, adjust the shutter speed or aperature to achieve the adjustment that you want!

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wardmartin
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 23, 2011

I understand what you mean. Effectively you want to create an ISO priority mode by setting the shutter speed and aperture but then use auto ISO. Then you're wanting to exposure compensate?

Changing the shutter speed or aperture won't help as others have suggested because the camera will use the auto iso to balance the exposure. Unfortunately though there's no way around this. The only thing you can do is set the ISO manually and then adjust either shutter or aperture to get the amount of compensation you need. Auto iso just isn't sophisticated enough yet.

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Keith Z Leonard
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Re: Exposure compensation in Manual mode?
In reply to wardmartin, Nov 23, 2011

It's not ISO priority, but just the opposite, as the only thing you are NOT controlling is the ISO. I sympathize as I've been in the same situation, it's unfortunate that it takes so long to set the ISO manually after taking the Auto-ISO shot.

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wardmartin
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Re: Exposure compensation in Manual mode?
In reply to Keith Z Leonard, Nov 23, 2011

Sorry my bad phrasing. I suppose I more meant an aperture+shutter priority where the camera automates iso in order to control exposure.

My point remains though that you can't exp comp for auto iso, you have to set all three exposure parameters manually to achieve this.

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Thanks for replies! I understand there is no quick function built in for this.

To switch from auto ISO to manual and then select proper iso is just to slow and cumbersome.

I think it would be a good idea to implement exposure compensation in M mode by using the joystick.
One step to right could rise the iso one step above "correct" ISO and so on.
This way I will have total control of shutter+aperture+exposure .

I honestly cant understand why no other 7D shooters out there miss this function.

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Jaims
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Pit123 wrote:

I honestly cant understand why no other 7D shooters out there miss this function.

There has been at least 1 thread (I seem to remember that it was in the 1d-5d forum) on this exact topic.
If I'm right, there is some Nikons that have these feature (?).

All in all, many ppl think that exposure compensation when on M mode (+auto ISO) would be a nice addition to Canon cams.

Regards

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schmegg
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Pit123 wrote:

I honestly cant understand why no other 7D shooters out there miss this function.

Oh - many do, believe me! (myself included)

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Vigy
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

The mode you are looking for is called AV.
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ultimitsu
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Pit123 wrote:

Hi
For birding with 7D, I like to keep control of both shutter and F number.
So the M mode is nice in combination with Auto ISO.

However, sometimes I would like to, very quickly, be able to compensate the exposre a step or two by rising or lowering the ISO.
Any idea how to do this quickly without moving away from M mode?

there are 2 threads on this topic, first was maxed out at 150 posts, second was around 100 posts.

long story short, it cant be done but it doesnt matter as much as you think, a lot of the iso adjustments are software anyway, which you can easily do yourself in post. and actual IQ difference within 1 stop between real iso and pushed iso is pretty small that you cant tell most of the time.

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wardmartin
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Is it that hard to switch from Auto ISO to a manual ISO on the 7D?

On the 60D it's just a quick press of the ISO button and dial in the desired setting. Auto is just one notch under ISO 100. I don't even need to look away from the view finder.

I'm surprised that it's not that easy on all the Canons with a top LCD.

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CameraCarl
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Re: Exposure compensation in Manual mode?
In reply to wardmartin, Nov 24, 2011

I can't understand why it is so challenging to change the shutter speed or the aperture when the light changes. The controls are right under your fingertip. Three clicks adjust one stop. Check your exposure and shoot away until the light changes again. Otherwise Av and/orTv work quite well.

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to wardmartin, Nov 24, 2011

wardmartin wrote:

Is it that hard to switch from Auto ISO to a manual ISO on the 7D?

On the 60D it's just a quick press of the ISO button and dial in the desired setting. Auto is just one notch under ISO 100. I don't even need to look away from the view finder.

No, its very cumbersome. Once you push the iso button you have no control with the exposure when you step through the iso steps. I guess it works the same way on 60D?

I'm surprised that it's not that easy on all the Canons with a top LCD.

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to Vigy, Nov 24, 2011

Vigy wrote:

The mode you are looking for is called AV.

Sorry, but your comment indicate you have no clue about what we talk about here.

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schmegg
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Re: Exposure compensation in Manual mode?
In reply to wardmartin, Nov 24, 2011

wardmartin wrote:

Is it that hard to switch from Auto ISO to a manual ISO on the 7D?

On the 60D it's just a quick press of the ISO button and dial in the desired setting. Auto is just one notch under ISO 100. I don't even need to look away from the view finder.

I'm surprised that it's not that easy on all the Canons with a top LCD.

No - it's just as easy on the 7D.

As ultimitsu said - all this has been discussed ad-infinitum in other threads.

Some people would really value the addition of this feature. Others, like ulti, don't think it's a big deal, and there are yet others who simply can't understand the issue at all.

I think it boils down to what you shoot and how much creative control you'd like to have over the process.

Landscape, portrait and studio shooters will never understand this issue. BIF'ers and airshow enthusiasts will.

For the target market of a camera such as the 7D, considering all the other competing bodies have this ability, it's a bit of an oversight by Canon. Of that there is no doubt.

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to CameraCarl, Nov 24, 2011

CameraCarl wrote:

I can't understand why it is so challenging to change the shutter speed or the aperture when the light changes. The controls are right under your fingertip. Three clicks adjust one stop. Check your exposure and shoot away until the light changes again. Otherwise Av and/orTv work quite well.

Often I dont want to change the shutter speed or aperture.

For example when I use the slowest shutter speed to just freeze movements and not want to increase iso more than necessary. At the same time, I dont want to move away from the lens aperture sweet point or change DOF. So in this case, I can only play with ISO.

But if the object (bird) is against a light backround, I need to compensate the exposure. Then I meet this problem.

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wardmartin
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

No, its very cumbersome. Once you push the iso button you have no control with the exposure when you step through the iso steps. I guess it works the same way on 60D?

I've had a look and see what you mean. Once you press 'ISO' then both the back wheel and top wheel change the ISO.

The 60d always shows the ISO that is being selected automatically (I guess the 7D does too?) so if you use this as a starting point and then go say higher for over exposing (as long as you don't change any other parameters) it's not too bad.

I see what you mean though, it isn't the easiest thing to do especially if you're shooting fast moving subject in changeable conditions. Hopefully Canon will think to rectify this soon.

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to Pit123, Nov 24, 2011

Pit123 wrote:

CameraCarl wrote:

I can't understand why it is so challenging to change the shutter speed or the aperture when the light changes. The controls are right under your fingertip. Three clicks adjust one stop. Check your exposure and shoot away until the light changes again. Otherwise Av and/orTv work quite well.

Often I dont want to change the shutter speed or aperture.

For example when I use the slowest shutter speed to just freeze movements and not want to increase iso more than necessary. At the same time, I dont want to move away from the lens aperture sweet point or change DOF. So in this case, I can only play with ISO.

But if the object (bird) is against a light backround, I need to compensate the exposure. Then I meet this problem.

Agree - thanks. Maybe 7D MK2?

Maybe some other birders can tell me how they deal with this?
M-mode + Auto iso + Spot metering?

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Pit123
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Re: Exposure compensation in Manual mode?
In reply to wardmartin, Nov 24, 2011

wardmartin wrote:

No, its very cumbersome. Once you push the iso button you have no control with the exposure when you step through the iso steps. I guess it works the same way on 60D?

I've had a look and see what you mean. Once you press 'ISO' then both the back wheel and top wheel change the ISO.

The 60d always shows the ISO that is being selected automatically (I guess the 7D does too?) so if you use this as a starting point and then go say higher for over exposing (as long as you don't change any other parameters) it's not too bad.

No, 7D doesn't show you the ISO that is being selected automatically, once to press the ISO button. In fact, you have no idea about the starting point!
60D is obviously better handling this.

I see what you mean though, it isn't the easiest thing to do especially if you're shooting fast moving subject in changeable conditions. Hopefully Canon will think to rectify this soon.

Yeah...

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