> On Jan 26, 2017, at 10:36 AM, Godfrey DiGiorgi <godd...@me.com> wrote:
> 
>> Thanks, Mark. That helps.
>> 
>> It also raises something else I’ve been wondering about. Can I set ISO to a 
>> low value, use whatever aperture and shutting settings I want for depth of 
>> field and capturing motion, not bother about underexposure, adjust exposure 
>> in post processing, and retain the advantages of low ISO, i.e, a less 
>> grainy/noisy image?  
> 
> Yes, up to a point. That's the point of ISO invariant shooting. For any given 
> camera/sensor, you have to experiment to determine just what the trade offs 
> are. 

Thanks, Godfrey. I notice the disadvantage you mention in the other 
post—possibly losing ability to focus accurately. Can autofocus be trusted in 
such situations?

------------------------------------------------------------------------------------------
Eric Weir
Decatur, GA  USA
eew...@bellsouth.net 

“Let the beauty we love be what we do.”

- Rumi


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