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Re: Auto-focusing and IR focus shift


  • From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
  • Subject: Re: Auto-focusing and IR focus shift
  • Date: Sat, 14 Sep 1996 12:15:02 +0000

On 14 Sep 96 at 5:05, WRG5534@xxxxxxx wrote:

> What brand name of IR film was Mr Cardish using, that he has so high an ISO
> reading?

Almost sure he was talking about Kodak HIE, and you need to dial in a 
high EI to compensate for the insensitivity of the onboard meter. 
Note that his metering method was TTF!....;-)) 
I have a list from a German mag somewhere, listing recommended EI's 
for several brands and generations of cameras (non-AF, hybrid, AF).
The trick is: the newer the camera, the less sensitive its meter is to IR, 
hence you need to dial in a higher EI to get the same exposure with 
TTF.
Will add it to my homepage soon....

 
--
Bye,

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      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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Topic No. 8