Originally posted by Just1MoreDave I'm not sure which exact lenses you have. If they are auto-focus too, they can tell the camera what their focal length is. That matters for the K100D's shake reduction system. For manual focus lenses, you'll have to enter that manually and change it if you zoom.
If you have lenses without the A setting, look in the beginner's forum for a sticky thread on how to use those too. A teleconverter without contacts will also "convert" all your lenses into non-A-setting lenses.
I just looked close at my lenses and the 28-70 zoom is a Pentax F series.
My other zoom lens is a Tokina 75-300( thought it was a Pentax---been so long since I looked at them....
) and it has an "AF" and "Auto Focus" on it.Both have the "A" button and setting on them.
Thanks for the reply and information.