Don Kuykendall_RIP
RIP :(
And I forgot to thank backdoorhippy for this little bit of knowledge. I think it is the tip of the week
Hi Don,
In your last example, focal length is equivalent to 450mm FX, and the camera automatically set the speed at 1/500 and ISO800, which is fine. But if the lens has VR I'd feel comfortable to lower the speed to 1/250 or even 1/125. By doing so the ISO would, instead of 800, become 400 or 200, respectively. I think that will improve the IQ, assuming the VR can take care of the camera shake.
Just an idea...
I decided to play with the Auto minimum shutter speed setting in the AUTO ISO. This is using the center setting on the slider since I thought that was a good place to start. I am using a DX camera since I am thinking it might make a difference. I shot the photos fixed on the same distant subject on a very overcast day so some of the variations are due to what was in the shot but I think the numbers show pretty good what is happening.
View attachment 150418
Auto ISO? No thanks. Thats like telling a 5 year old that he can have ice-cream anytime the temperature hits a certain point.
Sometimes it's amazing how much one learns in a few months. A few months ago I actually believed what I quoted above.. Now it sounds embarrassingly dumb.