Originally posted by Class A Have you set your minimum ISO ("ISO AUTO Setting") to be "800"?
TAV mode, iso settings 100-3200. Install Pentax flash, the new 540. Minimum ISO would be 800. I noticed because of the terrible quality of the shots.
I haven't the faintest clue why. I fiddled any pertinent settings, this was a while ago without any resolution. So I use X mode. It might have to do with the Sigma 500 lens. Not sure. It would auto iso and flash auto meter, but the iso would not go below 800.
X mode auto iso works as expected.
I used it last winter for wildlife shooting to get a couple stops more light. With the K3 sensor noise curves at low light, 800 iso is terrible quality.