susannah_masarie Posted October 20, 2008 Share Posted October 20, 2008 Kodak gives developing times for both large and small developing tanks. I am wondering what is considered a largedeveloping tank and what is considered a small developing tank. (For 35 mm film) Thanks, Susannah Link to comment Share on other sites More sharing options...
ronald_moravec1 Posted October 20, 2008 Share Posted October 20, 2008 Small tanks hold up to 8 rolls of 35mm film. Large tanks start at holding 6 sheets of 4x5 film on hangars. They are the size of a very small car battery and go up from there. The small sheet film tank holds 1/2 gal. liquid. Generally you use 3 or more. Link to comment Share on other sites More sharing options...
Vlad Soare Posted October 21, 2008 Share Posted October 21, 2008 Although they also give indications regarding the volume (8 to 16 ounces for "small" tanks and 0.5 to 3.5 gallons for "large" tanks), my impression is that it's not so much a matter of volume as a matter of procedure. They try to differentiate between tanks inverted by hand and open tanks used with hangers or baskets. The differences in developing times are caused by the different agitation styles, rather than the different volumes.<br> With inversion tanks, whether plastic or stainless steel, I would always use the times for "small tanks" regardless of volume. They are just starting points, anyway. Link to comment Share on other sites More sharing options...
ronald_moravec1 Posted October 21, 2008 Share Posted October 21, 2008 I think Vlad is correct if that is what you are getting at. I have done 35mm on reels with a lift rod in a 4x5 tank using small tank times and a lift and twist 2 times each 30 sec just like a small tank. Film developed properly. Traditionally sheet film is only agitated one agitation cycle per minute and the development takes a longer time as a result. Link to comment Share on other sites More sharing options...
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