I have a K7, and I've just recently started setting it up outside as a camera trap. It's gotten wet and its gotten cold, so maybe that is a factor. I've had it out for a few days total, for a little over 24 hours at a time.
It caught one photo of the target (coyote) last night that was massively underexposed, and the camera never increased the ISO, so the photo was 8 seconds long, and even if I could have pushed it past barely visible, it would have been a lost shot anyway.
I was having some problems today, and I don't know if they were mine, or the camera's.
In Tv mode, I would set shutter speed, compose my photo, snap, and review it only to find the camera had changed it.
I don't think this is the correct behavior?
I don't think having a fully manual lens on the camera would impact this either? I got my first fully manual lens in the mail today and was trying it out, and running into this problem with Tv mode, as well as exposure issues. Well, I assumed the exposure issues were because there is some trick to metering with manual lenses (I remember reading about it, and was planning to look it up again, but I just tweaked the exposure compensation at the time so I could test the lens).
But then I set it up in the camera trap again with an FA lens, and it was underexposing by more than 5(!!!) stops.
This was at night, so perhaps metering just isn't reliable when it's that dark... I've only played with those sorts of shots occasionally, so I don't remember if this is normal behavior or not.
Tv mode was still acting up, possibly Tav as well, though I was more focused on just trying to get the exposure and focus right, than testing it.
The battery was old but fully charged (I only have one), and the camera was still warm from the house when I took it out. It is behaving normally other than metering and Tv retention. All the buttons were responsive, photo review was normal, displays show the settings correctly, etc
Last edited by Canid; 03-23-2018 at 08:26 PM.