9X12cm film developing

Taco development?

baachitraka said:

How to develop 9x12 film if I don't do tray development?

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Look for POD54 (I guess this is the name).
It develops up to 6 (or 8??) 4x5in film negatives in a middle size Peterson Tank.

9x12cm processing discussion moved here from the "What is this camera?" thread.

MattKing said:

Taco development?

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I am not very fond of that word, but you got that right MattKing! That's what I've explained in other words. My 120 tank fits three 9x12 folded at the same time that way

marciofs said:

Look for POD54 (I guess this is the name).

Click to expand...

Mod54

marciofs said:

Look for POD54 (I guess this is the name).
It develops up to 6 (or 8??) 4x5in film negatives in a middle size Peterson Tank.

Click to expand...

MOD54, it's designed for 6 5x4 sheets, so is useless for 9x12, although I guess the reels could be modified for 9x12 or Quarterplate but this would require cutting a section out and regluing.

In Baachitaka's case the best route is a Jobo tank with 9x12 reels again each take 6 sheetes, these are plentiful in Germany, The Yankee tanks leak so not ideal outside a darkroom. I use a Jobo tank either in the Kitchen or the Bathroom while in Turkey, I can easily black out the bathroom which has no window for loading film into the dark slides or the tank.

Ian

Two reels for €50, some where in ebay.

I don't own an enlarger capable of taking 9x12cm negatives. So I mostly doing contact prints since I love small prints very much.

Any experience with Heliar lens?

The Combi Plan Tank should be able to do 9x12. However they are not produced anymore. ( I think I’ve read somewhere that the mold for the tank reached the end of its lifetime and it is too expensive to make a new one). The pop up from time to time on the big auctions site.


There are different opinions about the Combi Plane tank…. Especially about the time for filling liquids in…

There's another option, modify the film holders from our SP-445 to accept 9x12:

Sharing a tip a chemist once gave me: replace shallow trays by deep containers such as ice cream containers.
Square, not round. They are cheap, lightweight, and you can agitate well.

You can buy old color paper drums and use a motor base for rotary development. Although I usually develop in deep tanks with hangers on occasion if I only have a few sheets I use a 5X7 or 8X10 Unicolor or Cibrachome drums that fit on a Unicolor motor base. I fit one 4X5 in the 5X7 and two in the 8X10 and 4 in 11X14 Cibrchrome drum. In the I use some dabs of silicon in the 11X14 to keep the sheets from sliding across each other while process. Much more primitive that a Jobo system, but for under a $100 US doable. You can also find BIZ tubes, not motor base required. I use one shot chemistry, just dump at the end of the development, stop bath and fix. After fixing I transfer to hanger for washing in a deep tank, Photo floe in a 5X7 tray then hand to dry. Don't see any reason why it will not work with 9X12.