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Hints and Kinks

533 bytes added, 17:35, 25 April 2014
== Silver-halide ==
=== Defogging PFG-03 ===
I have successfully killed bad fogging on Slavich plates (without also killing the photosensitivity) by soaking them for exactly 60 seconds in a solution of:
* 20 g Ferric EDTA
* 10 g KBr
* Water to make 1,000 ml
This solution keeps for years. Ferric EDTA is ethylenediaminetetraacetic acid ferric sodium salt. What amazed me was that the photosensitivity of the plates did not drop noticeably afterwards without my needing to resensitise them in say 2% ascorbic acid (vitamin C) at pH ~6.
~Jeff Blythe
=== Defogger ===
adapted from the thread
PBU (Phillips - Bjelkhagen Ultimate) bleach makes a good film defogger

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