Iso Question

[ruthless]

If I set the ISO on my camera, does it stay changed even though I'm using the automatic settings? Does that make sense? I set it from 400 - 100 last weekend when I was taking portraits. I was at Staffy Rescue today and I took some shots in portrait mode that look shit. Really washed out. I think it's still set to 100. Would it not have set itself to whatever it thought it needed to be at?

[rubiton]

Had a quick check on the 350D - it stayed on 400 ISO when I swtiched it to an auto mode.

What sort of photos were you taking - ie was the background a light colour? Wasthere a window or something bright anywhere behind the subjects? Just wondering if the auto sensor picked up on something other than teh subject (eg if the subject is dark but the sensor pick up on the sky it will set the settings for the sky not the dark object.

[ruthless]

It was these pics

http://www.dolforums.com.au/index.php?s=&a...t&p=2386371

[Ripley]

Are you using P mode? The default setting on my 350D is 100. I know this as husband wants to use the camera tomorrow on site and told me to switch it back to the default mode (I know he'll shot in Auto mode), so I pressed 'clear camera settings' in the menu and noticed that the default ISO setting on the Canon 350D is - 100. Maybe it's the same for your's as well?

I was not aware it switched itself back, it hasn't for me before but I change ISO to suit the conditions I'm shooting in - although sometimes I've forgotten.

ETA: I think if you choose the portrait mode, it's an automatic mode, and that locks you out of a lot of creative features - including ISO. Hence why it may have defaulted to the ISO of 100. Portrait mode usually just blurs the background a little, I think.

Edited February 3, 2008 by Ripley