DIY PVC Tube Development Timeline for Two Films - Update No. 3

April 16, 2017  •  1 Comment

DIY PVC Tube Development Timeline for Two Films - Update No. 3 by Tim LaytonDIY PVC Tube Development Timeline for Two Films - Update No. 3 by Tim Layton In my quest for being more efficient with my semi-stand development process for individual films, I needed a method to develop more than one film at a time. 

The approach that I outline below works best when the total time for presoak and initial agitation are greater than the stand development cycles for the two films.

I use 3 timers.  Timer 1 is dedicated to film # 1’s current process, Timer # 2 is dedicated to film # 2’s current process, and the third timer is used for the agitation cycles.  I also recommend numbering the tubes and the timers, to keep track of them and not rely on placement (left or right).  

Free Analog Photography Journal by Tim LaytonFree Analog Photography Journal by Tim Layton I use a small whiteboard to write down the development plan and erase each step for each film as I complete it.  You could accomplish the same thing with a piece of paper and mark through each step as it is completed. 

You may want to review the previous articles related to this post: introductionupdate # 2

Two Film Development Timeline for Individual Tubes of Film

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Step 1 - Film # 1 - presoak for 5 min 
Step 2 - Film # 1 - initial agitation (ranges from 2.5 to 5 min depending on development needed) 
Step 3 - Film # 1 - stand # 1 for 15 min. (this can vary, I used 15 min as an example) 

Step 4 - Film # 2 - presoak for 5 min 
Step 5 - Film # 2 - initial agitation (ranges from 2.5 to 5 min depending on development needed)
Step 6 - Film # 2 - stand # 1 for 15 min (this time ranges between 5 and 20 minutes) 

Step 7 - Film # 1 - agitation cycle # 1
Step 8 - Film # 1 - stand # 2 for 15 min.

Step 9 - Film # 2 - agitation cycle
Step 10 - Film # 2 - stand # 2 for 15 min.

Step 11 - Film # 1 - agitation cycle # 2
Step 12 - Film # 1 - stand # 3 for 15 min.

Proceed to step # 15 for film # 1

Step 13 - Film # 2 - agitation cycle # 2
Step 14 - Film # 2 - stand # 3 for 15 min.

Proceed to step # 15 for film # 2

Step 15 - stop/fix/wash film # 1
Stop bath for 30 seconds with film # 1
TF-4 rapid fix for 5 min for film # 1
Wash film # 1 
Photo Flo 200 and hang to dry

Note: I remove my films from the tube and go to trays for stop, fix, and washing.  I am currently testing a new method that will simplify this for my mobile darkroom.  

Step 16 - stop/fix/wash film # 2
Stop bath for 30 seconds with film # 2
TF-4 rapid fix for 5 min for film # 2
Wash film # 2
Photoflo and hang to dry

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Comments

Reg Markin(non-registered)
Dear Tim, Interesting project, but I can’t help thinking that you should copy the nova slot tank and transport several sheets in a hanger. I use 3 combi - plan tanks in a tray with an outer tray for hot water temperature control. My UK darkroom attached to the house can drop to 10 deg C.
Best regards
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