I'm just curious about the Combi-Plan system for 4X5 sheet film. I thought about getting one of the tank setups for 4X5 sheet film, but never did. I now use a Searman SP-445 and really like it. I probably won't change and was just curious as to the pro's and con's of the Combi-Plan system. I sure don't hear of many, it any, folks on these forums using the Combi-Plan tanks for developing.
Combi-plan for 4X5 sheet film
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- Thread starter John Wiegerink
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There was apparently more than one generation of them. I never could get mine to work properly, without streaking the negatives.
That's one of the things I wondered about Drew, agitation and issues associated with it. It's one reason I went with the SP-445. I have numbness in the ends of all my digits, which makes tray development with shuffling nearly impossible for me. Had to find something that worked better than my big, old Yankee 12 sheet tank.
I have used my CombiPlan tank for 4x5 for years. It’s compact and easy to use, IMO. I have a Yankee tank as well as hangers but always end up using the CombiPlan. No issues with streaks or anything else.
I use a Combiplan "T" .
Due to the small inlet, it takes around 20 seconds to fill.
Therefore I start the timer when full, and start to empty 15 seconds before the end of development.
As I do my own tests for exposure and development times, I have no problems as long as I stick to my own routine.
Two important things.
The instructions say to fit the film in the curved slots with the emulsion facing out, this ensures the emulsion will be pressed away from the curved slots when the film retaining clip is pressed down in position. One fellow on Youtube tells you the wrong way.
Secondly.
The instructions read "When processing very valuable films it is advisable to insert only two films on each side of the carrier with no film in the centre slots."
The only problem I ever had was when using it for the first couple of times. Over enthusiast with the agitation.
A couple of sheets went askew in the holding frame. Gently inversions are the answer.
Due to the small inlet, it takes around 20 seconds to fill.
Therefore I start the timer when full, and start to empty 15 seconds before the end of development.
As I do my own tests for exposure and development times, I have no problems as long as I stick to my own routine.
Two important things.
The instructions say to fit the film in the curved slots with the emulsion facing out, this ensures the emulsion will be pressed away from the curved slots when the film retaining clip is pressed down in position. One fellow on Youtube tells you the wrong way.
Secondly.
The instructions read "When processing very valuable films it is advisable to insert only two films on each side of the carrier with no film in the centre slots."
The only problem I ever had was when using it for the first couple of times. Over enthusiast with the agitation.
A couple of sheets went askew in the holding frame. Gently inversions are the answer.
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