Originally posted by GRIZZLY GULCH I just purchased a new K10D and I am a little lost. I have a SMC PENTAX-A (400mm) lens and I'm not sure why I cannot take any shots. After looking thru the manual I am even more confused. I must be doing something wrong. Thanks in advance.
You haven't really said what doesn't happen, but I imagine you mean nothing happens when you press the shutter release button.
The memo section on p131 is quite helpful.
You probably have the camera set to AF, and do not have focus confirmation in the viewfinder, which is the green hexagon, not the red dot (p 136).
Set it to MF, and it should fire.
Ensure also you have the lens set to A, otherwise the camera will not be able to set the aperture on the lens (p210).