How To Use Hypo Clearing Agent

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Part of the video series: How to Develop Black & White Photos

Summary: Learn how to use the hypo clearing agent needed to develop camera film for black and white photos in this free photography video.

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By Brian Rajchel
eHow Presenter

Brian Rajchel leads more than three camping/wildlife group excursions per year. He teaches children and adults tips and techniques for successful outdoors adventure.read more

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paulg2 said

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on 8/2/2008 Your using a wetting agent, not a hypo clearing agent.

on 3/28/2009 Photo-Flo is NOT a hypo clearing agent!!! Photo-Flo is simply a surfactant which helps to prevent drying spots on the film. To shorten wash time, rinse with water and then use Kodak Hypo Clearing Agent for 30s to 1min. Wash in running water for 5 minutes and then use Photo Flo in distilled water and shortly dip your film in it before hanging it out to dry.

brettw said

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on 12/30/2008 This video is WRONG. He is describing wetting agent but using the term "hypo clearing agent." Wetting agent is used as the last step in the wash to clear up water spots as he describes. Hypo clearing agent clears fixer. This is totally different!

Video Transcript

"We finished rinsing the fixture out of the film in our developing tank here, the next step is to use what’s called the hypo-clearing agent. In this case the particular one that we’re using is Kodiak photo flow, in order to properly use this you want to have a medicine dropper you want to use only about 2 drops, you could just drop them in your tank, then pour in plain distilled water. In order to properly use this you want to agitate softly for about 1 minute…the purpose of the hypo-clearing agent is to put a surface on the film that resist water, this will cause the water to beat up and run off, it helps prevent water spots and dust and things like that from getting on your film which in the end will help you produce better images when you go to enlarge them. Once that’s done you can simply pour it out…very similar to soap and at this stage you can go ahead and open your tank and take out your film see what you’ve got and there you go, there’s your images."