On my recommendation, my F-in-L's present to my wife this Xmas was a new K100D Super. This has the advantage that in principle we can use my older lenses with it. I recall previous discussions here about using M lenses with these DSLRs, but cannot find a link to a thread about that. Could someone post that?
I am also trying to get my head round the interaction between the lens and the camera body. Looking at the 18-55 kit lens I see it has no aperture ring. I see also that the lens has a lever at one side of the rear, and when I move this the lens diaphragm closes. My Pentax-M F3.5 135mm lens has the same lever.
Is there any reference material anyone know about which describes how the various camera bodies use the information that this lever provides, and conversely how the body controls the position of the lever when a picture is actually taken?
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