OK, I must have done something but I don't know what. I started the day with my ISO set at 800. At the end of the day it was at 3200. And I swear i didn't change it...
It went up in jumps, always up. 800, 1250, 1600, 2500, 3200. Something like that. Jumped about every 50 or so shots.
I had the d7100 set on Aperture Priority, f:11, with a 10mm-24mm Sigma lens. This was outdoors. I was carrying the camera on a BlackRapids Strap. I can't see how I'd accidentally press the ISO button while rotating the command dial. Takes me two hands to do that intentionall
Any ideas what must have happened? This was the first time I was really out shooting all day with the camera.
I only noticed it after the fact as I am mostly blind. So changing the settings means pulling out a magnifier, I'm not able to glance at the display on the back, and especially on the top and read settings.
In spite of the ISO increase I'm quite pleased with some of the shots, actually quite a few.
Sun 27-Oct-13 11:36 PM | edited Sun 27-Oct-13 11:41 PM by kentak
I have a D7000, not a 7100. But, there is probably a menu item (it's d3 on a 7000) that allows "easy ISO." If enabled, in A mode the ISO can be changed by only turning the main command dial. It's conceivable that could be the cause of the unexplained variation. If that option is not enabled, then I'm stumped. Good luck.
Just checked. It is item d3 on your camera as well.
Nope, not on Auto ISO. Confirmed though I didn't think it was. The only direction the ISO changed was UP regardless of the light. I'm sure somehow user error was involved. Just wish I knew what:) Can I blame my wife? She was nearb