ISO - Auto or not?

[sk66]

I find it odd that someone would not want to be able to make adjustments while looking thru the viewfinder... unless there is a significant eyesight issue. I guess if things are really slow it wouldn't much matter.

Edit: I suppose "have to" is different than "able to"... but I don't know of a single camera that can't/doesn't display the aperture setting elsewhere.

 

[SDK^]

I use Auto ISO all the time on my 6D. In Av mode I set the option for min shutter speed to match the lens focal length and it works perfectly.

High ISO noise is so well controlled that I don't need to worry if the camera chooses 6400.

If I'm using a wide lens for a shot which includes people, then I set the min shutter speed to 1/60.

 

[elliotedwards]

Depends what I'm photographing. I sometimes set it to auto, with a bracket of 100-6400 on my 5D3. I have had it play up and meter on a black piece of cloth that gave it a reading of 6400, when it should have only been 500-800 tops.

 

[shaylou]

Depends what I'm photographing. I sometimes set it to auto, with a bracket of 100-6400 on my 5D3. I have had it play up and meter on a black piece of cloth that gave it a reading of 6400, when it should have only been 500-800 tops.

Is that the only time it gave you the wrong ISO / shutter. My 5DIII did this a few times when trying to use auto ISO but I wasn't sure why so I just ended up not using it unless I absolutely had to. I mentioned this a lot earlier in this thread but really did not get many that said they experienced the same thing.

 

[elliotedwards]

Is that the only time it gave you the wrong ISO / shutter. My 5DIII did this a few times when trying to use auto ISO but I wasn't sure why so I just ended up not using it unless I absolutely had to. I mentioned this a lot earlier in this thread but really did not get many that said they experienced the same thing.

Pretty sure. It happens commonly at events, I use spot metering quit a lot, so if im not tracking subjects, it doesn't do too well. I was tracking at an event and the wall was black, the lights from the side illuminated her, should have been like 1/250th f9 @ 500-800 ISO, but It did 1/250th f9 @ 6400, but in all honesty, my bad aim.

I don't use it enough. I tend to keep my mode dial on M. with complete manual settings. The scene never changes enough to warrant it being automated at all.

 

[shaylou]

Pretty sure. It happens commonly at events, I use spot metering quit a lot, so if im not tracking subjects, it doesn't do too well. I was tracking at an event and the wall was black, the lights from the side illuminated her, should have been like 1/250th f9 @ 500-800 ISO, but It did 1/250th f9 @ 6400, but in all honesty, my bad aim.

I don't use it enough. I tend to keep my mode dial on M. with complete manual settings. The scene never changes enough to warrant it being automated at all.

My situation was similar a few times when shooting a band but I had some off the wall settings a few times. I had something like a shutter of 600 with a iso of 6400 when all I needed was a shutter of around 200 with a much lower iso. As we talk about this I am starting to think I might of been on spot metering as well. With that metering I could see how easy it could be to miss the subject and get things out of whack real fast. I guess I need to re examine this when I get my new camera (replacement). I think a good auto iso could really come in handy at times. Thanks for the incite.