Re: Kodak Wratten #12 & #16 for Ektachrome IR still availab

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

On 21 Feb 97 at 1:11, Peter De Smidt wrote:

> Tim Coffer wrote:
> > 
> > Willem, funny you should remind me of the order I want to place with
> > Calumet Photographic, Inc. (890 Supreme Dr., Bensenville, IL 60106).
> > Calumet stocks polyester film equivalents of Wratten gels. They claim
> > these are substantially more durable than gels and can be cleaned quite
> > easily, as well. 
> 
> These filters are renamed Lee Resin filters from England.  I like them.

Note that the #87 is not a rigid resin filter, but a thin flexible
polyester one (0.1mm). But at least better than gelatine, as it is 
dimensionally stable, and doesn't stick to your fingers....8-))

For those looking for Cokin-P compatible filters: be warned that a
85x85mm square is NOT the right size, in contrast what ads of several 
brands claim. It will bind in the Cokin-P holder, and worse: it will 
fatigue the middle slot, as the plastic spring is fully depressed. 
You'll realize this only after a correct-sized 83x83mm drops through 
it....8-((
This can become an even more expensive joke if you use a 82x82mm
glass enhancement filter....they are okay in a Cokin-P holder, but
not in a stressed one....autch!

I also have had bad experiences with Hitech, as the spectral
accuracy was way off with some IR filters. With a '#87C', I could
look through it easily(!)....I sent these back, but I strongly doubt they
did a recall on the filters already produced and sold, as I have seen 
a few others produced months before....8-((

--
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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End of INFRARED-PHOTOGRAPHY Digest 218
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