Re: (fwd) Re: thin film NIR blocking?

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 12 Nov 98 at 15:57, Frank Schiffel wrote:

> have you looked at the transmission curves of some of the Kodak
> gelatin filters? they're not robust as glass, but could work for
> short term or if you only needed the filter for a few exposures.
> the hing about using them over exposed film which could be
> affected by processing is that you know what the properties are.

I have a chapter on my homepage listing transmission curves for all 
IR-related Kodak Wratten numbers, as well as the equivalents from 
Schott, B+W, Heliopan, Hoya and Cokin.
For the URL see admin footer below.



--                 
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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