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[OM] Re: canon 5d manual focus lenses which work well/poorly?

Subject: [OM] Re: canon 5d manual focus lenses which work well/poorly?
From: <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sun, 17 Jun 2007 02:58:09 +0000
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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