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Re: PENTAX 645N Medium Format Camera


  • From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
  • Subject: Re: PENTAX 645N Medium Format Camera
  • Date: Sat, 4 Jul 1998 22:06:12 +0000

On  4 Jul 98 at 11:56, Don Roberts wrote:

> Indeed that changes the whole picture I had of this camera.  Now we just need
> to know the answer to the original question; does this camera rely on IR
> sensors for reading the information?

I bet my left arm that it does not.
No 120/220 camera has ever relied on IR-LED as a film counter (there 
is no perforation in the first place!), and both the old 645 system 
and the 70mm back are probably from an era where IR-LED's were not 
even invented for this purpose.

Also note that the most sophisticated film counter/data camera today
is the Fuji 680....and even that one doesn't use IR-LED's, but a
bar-code reading system (seems only Fuji films comply with this
system). 
The sad thing about the Fuji is that it doesn't offer a 70mm back....


- -- 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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