I think you'll find the Pentax compatibility goes back further than 20 years.
But the mechanical acutator on the Nikon was a good piece of info. Thanks for
that.
Chuck Norcutt
> -------Original Message-------
> From: Winsor Crosby <wincros@xxxxxxxxxxx>
> Subject: [OM] Re: canon 5d manual focus lenses which work well/poorly?
> Sent: Jun 17 '07 02:54
>
>
>
>
> On / June 16, 2007 CE, at 7:28 PM, <chucknorcutt@xxxxxxxxxxxxxxxx>
> wrote:
>
> > There is Canon EOS (auto focus) and Canon FD and earlier (manual
> > focus). There is 0 compatibility between them. It is possible to
> > buy a third party FD to EOS adapter but infinity focus requires an
> > optical element such that you end up with a very low power
> > teleconverter. I've only encountered a couple of people who have
> > owned same. None were pleased. I believe Canon made one as well
> > for a short period after the EOS system was introduced but I don't
> > think it performed well either and didn't last long.
>
> You are right, but, gee Chuck. That was 20 years ago. The need for
> compatibility gets pushed to extremes, but do you really want to put
> an FD lens on it.
>
> >
> > I don't know the full extent of Nikon lens compatibility except
> > that what you get depends on the price of your camera body. The
> > lower the level of your body the less the compatibility which I
> > think in many cases is zero.
>
> The last part is not true.The part about the cost increasing with
> compatibility is true. You can use manual lenses manually on all of
> them. The D200, D2X, D2H have mechanical aperture actuators and
> pretty much duplicate the original metering with any Nikon or third
> party lens with a chip in it. The compatibility of the cheaper Nikons
> is less, but then they are less likely to have owners who have that
> interest.
>
>
>
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