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Ilford filter test

  • From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
  • Subject: Ilford filter test
  • Date: Thu, 25 Jul 1996 20:34:53 +0000
Hi gang,

Filter experiments with Ilford SFX-200, developed in ID-11, 1+1 solution 
(according to Ilford spec sheet)

Test results:

No filter: ISO 200/24
Wratten #25: ISO 50-100/18-21
Wratten #29: ISO 50/18
Wratten #70: ISO 50/18
Wratten #89B: ISO 50-25/18-15
Wratten #88A: ISO 9/6

[For a conversion table of Wratten with B+W and Heliopan, see my homepage:
http://www.a1.nl/phomepag/markerink/mainpage.htm]

Note that the first and fourth result comply with the official Ilford 
recommendation.

Other observations: apart from the higher sensitivity, the SFX is 
very close to the Konica. A tad more grain, but also a tad better contour 
sharpness. All based on this first stage of testing, a second run will 
involve darker filters and longer development, since the dark filter 
shots (89B and 88A) already result in noticeably less contrast. 

That's all for today!

--
Bye,

       _/      _/       _/_/_/_/_/       _/_/_/_/_/
     _/  _/  _/               _/       _/  _/  _/
     _/  _/ illem    _/     _/ an    _/  _/  _/ arkerink
                     _/_/_/  


The difference 
between men and boys
is the price of their toys

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

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End of INFRARED-PHOTOGRAPHY Digest 13
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