The film dries with uneven shrinkage and the result is water-marks that are likely irreversible. If water droplets are present, they retard shrinkage in a localized way. As film dries the swelled gelatin shrinks. Now water tends to bead on the surface of the film will be in the form of localized water droplets that dot the film’s surface. Highly filtered water is OK many use distilled or deionized bottled water.
#PHOTOFLOW KODAK FREE#
The key drying technique is to use a final rinse fluid free of foreign particles. A hypo clearing bath followed by 5 minute wash in running water is ample. These are special salts that help flush out fixer. An alternate is to use a hypo (nickname for fixer) clearing agent. We wash for 20 to 30 minutes to ensure all the fixer is rinsed out completely. This solution contains sulfur and if not washed out, the sulfur attacks the silver based image and tarnishes it. Gelatin is used because it swells when wet allowing the fluids of the process to percolate freely within the structure. The light sensitive goodies are imbedded in the gelatin which acts as a glue to hold everything to the base. Cheers!įilm consists of a coat of highly purified gelatin on a flexible base. Many thanks, and I apologize if this has been addressed before. I do finger squeegy as well as use a rubber squeege but I think that is not helping my situation. FYI my water is extremely hard, and spotting is a problem. I just want to get the information straight as best as possible so I can improve the quality of my negatives. Do I add my Photoflo (pre mixed from one gallon stock solution) AFTER I do my standard 10min rinse? I have also read that users fill the tank up with the photoflo solution and slosh the film reel around in this for 30 seconds, up to 1 min, then hang film strip to dry as is. The last step above is where I am confused.
Rinse (cold running tap water for about 10mins) I currently am not using this, but that will change shortly. I have read several articles on Kodak Photoflo and water spot removal. I recently just got back into developing my own b/w films at home.
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