Archived posting to the Leica Users Group, 2000/02/28

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Subject: [Leica] Agitation--Surge
From: Mike Johnston <michaeljohnston@ameritech.net>
Date: Mon, 28 Feb 2000 22:57:18 +0000

>>>1. Fill the tank completely. No air space to allow the solution to
move
quickly.
2. Immobilize the reel (s) by inserting a film can whith the bottom
removed
so that it can be compressed forming a spring that pushes the reel
down<<<



I have to disagree with this totally. The best 35mm agitation is
achieved using a generous airspace in the tank and allowing the reels
some movement. See an article called "Shake It Up!" by George Post
published in _Darkroom Photography_ magazine in about 1986--most
thorough experimentation on agitation methods in home developing I've
seen before or since.

I should edit a book-length compendium of the best technical articles
ever published in the magazines....

- --Mike