Thanks John - I'll check it out

Hi - I currently have the K-r AND k-3 models. I had reason to shoot with my K-r in bulb mode for the first time the other day but every time I tries to shoot for longer than 30 seconds the camera just seemed to switch off - tried new batteries just in case but with the same result!
Have recently treated myself to the K-3 but this would appear to have the same problem in bulb mode.
Am I missing something?
Is anyone else having this problem?

Hi - I own a Pentax Kr
Great camera but I just can't seem to get sharpness when taking pictures. I understand DOF etc so I'm happy it's not that. I'm using the 18 - 50 Lens that came with the kit, is it possible that this is the problem?

Hi all!
New here and hoping for a little help.
I have recently purchased a K-r and was told that any K mount lenses etc would work with it to some degree.
I have purchased a fixed zoom lens and more recently a doubler, both which say they are K mounts. Both fit the camera but when I focus with them the appateur range (F number) just flashes and will not allow me to take any pictures!
I have looked in the settings but there doesn't seem to be anything there to help.
Any help would be greatly appreciated.
Thanks in advance,
Ian