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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
Optical Performance BAK4 Porro prisms
This natural white paper is free of OBA's and has the appearance of a natural white barytpaper
Compatibility GH15 and GH25 heads Length 22
the Bottom Shim is also required - sold separately
Photographers' Formulary Sodium Bisulfite - 1 Lb. Kinesis R144-H Optical Performance BAK4 Porro prismsSynonyms Acid sulfite of soda Leucogen Sodium acid sulfite Sulfurous acid, monosodium salt Sodium hydrogen sulfite, solid Appearance White, crystalline powder Slight odor of sulfur dioxide. Uses In acidulating and preserving fixing baths As a preservative for pyro developer Chemical Formula A mixture of NaHSO3 (sodium bisulfite) and Na2S2O5 (sodium metabisulfite) Notes Can be substituted weight for weight with sodium metabisulfite. Very soluble in
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