What ISO to keep on A mode?

Started Apr 21, 2014 | Questions thread
WryCuda Senior Member • Posts: 7,275
Re: What ISO to keep on A mode?

Ferguson wrote:

BobSC wrote:

I set ISO to the lowest setting and only move it if I need to for faster shutter speeds.

What I often do shooting in daylight where there's shadows and frequently changing conditions is set the ISO to 100 (lowest), set auto-ISO on, and set manual.

The caveat is that you need to make sure you have enough shutter speed (or aperture) so that the light is not too bright for the lowest ISO. (i.e. if it is 100 it may be too bright and can't go lower).

Comments welcomed on photos: http://www.captivephotons.com

That's one reason I set my starting ISO at 200; Auto-ISO can then reduce ISO if necessary.

I can't see any difference between images taken at ISO 100 vs. 200, and since many of my lenses have maximum apertures of f/4, the extra ISO gives me an extra "stop".

Your gallery photos are very impressive. Must be the ISO!

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