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Occasional Contributor
Posts: 13
Registered: ‎03-13-2013

Re: 5DIII Auto ISO in Manual + exposure compensation

[ Edited ]

Auto ISO with exposure compensation is now on 1DX and 7DII. The days that ISO was the limiting factor are over. Now there are many scenarios where you want full control over apperture and shutter speed. In those cases having Auto ISO is really helpful to deal with changing light conditions. In older camera's the ISO was too limited to make that usefull, but that has changed. Off course to use that you want exposure compensation to work.

I think it is a shame that this feature has not been released to the 5DIII yet.

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New Contributor
Posts: 2
Registered: ‎05-15-2015

Re: 5DIII Auto ISO in Manual + exposure compensation

As a WildLife photographer who uses the 5D3 sometimes I welcome the option. Let's hope Canon releases a firmware for this.
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Reputable Contributor
Posts: 790
Registered: ‎06-11-2013

Re: 5DIII Auto ISO in Manual + exposure compensation

Auto  ISO in M mode is no longer manual... it's just anther auto exposure mode.

 

As such, it needs to have Exposure Compensation... But it doesn't on many of the Canon models with Auto ISO. That's why I rarely use it. Maybe some of the newer models have EC on Auto ISO.

 

I also wouldn't use Auto ISO in combination with Tv, Av or P, either... That would be an auto-auto exposure mode!  No telling what you might get!

 

Auto ISO also needs user-settable upper and lower limits... Which I believe some of the newer models have.

 

***********


Alan Myers
San Jose, Calif., USA
"Walk softly and carry a big lens."
GEAR: 5DII, 7D(x2), 50D(x3), some other cameras, various lenses & accessories
FLICKR & EXPOSUREMANAGER 

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New Contributor
Posts: 2
Registered: ‎05-15-2015

Re: 5DIII Auto ISO in Manual + exposure compensation

Whatever you want to call it its just a different way of using it, I don't trust the cameras meter 100 % of the time specially on a small bird in flight.
Auto ISO does currently have upper limit settings on 1dx and 5d3 which I use when photographing wildlife.
When you are in the woods and the subjects are undefined and range from a small moving to a bird in flight we each have our own way of not missing the shot. I find that auto ISO with an acceptable IQ limit makes my work easier and keeper rate up.
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