Originally posted by stevebrot Except for the last 19 years or so...The crippled KAF2 has been with us since 1997. I think that is almost 1/2 the life of the mount?
Steve
I think the first cripped mount was the one of the Kiev 10 and 15, they don't have aperture ring as they are just shutter priority, but I am comfortable with this kind of setup.
QUOTE=Adam;3640381]The lens is stopped down for about half a second when you press the green button. Nikon follows the same procedure for non-AI lenses. On the Df, you still have to tell the camera what the selected aperture value is, which IMO is harder than pressing the green button once
Cheaper Nikon DSLRs can't meter at all even with AI lenses, whereas all Pentax DSLRs can meter with all Pentax lenses.
The reason it's implemented this way is that in the old days, a mechanical linkage told the camera about the setting of the aperture ring. That linkage has been removed on Pentax DSLRs (as well as the last film model, the *ist) since electronic control of the aperture setting allows for better precision. That's also why aperture rings are gone on modern lenses- they're obsolete.
The next step is electronic control of the aperture diaphragm rather than a stop-down lever. High-end Nikon lenses already implement this (though unfortunately, those lenses are not backwards compatible with older bodies).
Some users wondered if we'd see the return of a "non crippled" mount on the K-1, but ultimately Pentax decided to keep it out. Personally, I'd rather have really good shake reduction, etc., than half a second less per shot with M lenses.
Why not start small and try out a K-50 then? If you don't like it you won't be at much of a loss- the used price is pretty close to the new price.
I understand that there are still many users out there that prefer film (it rocks!), but if you haven't tried modern cameras at all then you can't really argue in favor of one medium over the other. I hope my motivational comments sway you in favor of exploring a bit
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Well, I just have AI lenses, so that wouldn't be a problem for me, I am not very happy about the price of the Df though.
For the K50, I am not interested in a non full frame camera as all my lenses wouldn't work as on a film camera, but on the K-1 at least can the A lenses work properly? Is there an aperture priority mode where I can define the f stop and DOF I want?