Developer: Hydrofen Bellini
- Mix: 1+39 (8ml + 292ml)
- Time: 10′ 00”
- Agitation: continuous for the first minute then 15 seconds every minute
Some days ago I totally destroyed a 135 film developing it with a dead chemical (it was a solution of R09 done from an already opened bottle. See here). It is not a nice experience, for sure. So I started to search for a practical method to check if the developer is still good or not. This is what I found and I tested it by myself.
You can do the whole stuff in full light.
STEP #1: Put a small piece of the film on a toothpick (part of the film leader that usually you cut away before putting the film in the tank roll) and put it into the developing solution. This film has been exposed to full light so it should become totally black. Keep it in the developer for 1/5 the time you need to develope the film.
STEP #2: wash the film under water
STEP #3: put the film in the fixing solution and wait for 1/3 time of usual fixing time
Now, if the developing chemical is still good, you’ll get a total black film. If the developing chemical is gone, you’ll get a totally transparent film (fixing solution took away all undeveloped silver).
This is one of my two beloved film developer (the other one is the Bellini’s Hydrofen).
Yesterday I had a new experience with it, and it’s worth to be told. I developed a Fomapan 100 using a 1+50 solution from a bottle opened more or less 6 months ago.
The result was a totally blank film without anything (neither brand or frame numbers). So the developer was totally dead and, when I emptied the bottle, I found that in it there was an hard, brown crust, as if the active part of the developer became a precipitare leaving only a useless brown liquid.
Searching on the net I found another case like mine: it’s here.
So, lesson learnt: when you open a R09 bottle, after 4 months throw it away. And, in case of doubts, try to develop a small film leader to check if it is still working or not.
My own “How to develope b/w films” guide: only in italian, sorry !
In giro è pieno di tutorial su come sviluppare le pellicole in casa. Quindi non posso esimermi dal pubblicare anche la mia miniguida.
Così è come faccio io. Continue reading
Stand development is a nice way to develep more or less everything with stunning results.
The rules are simple: high developer diluition and one hour developing time in a motionless tank.
You can mix in the same tank different films with different speeds and everything will be developed well in the same time.
For several reasons, too scientific to be understood by me, this technique works great with films up to ISO 200. You can read a more scientific explaination here.
I tried several times this development process with Ilford FP4 and Fomapan 100 and I always got perfect results.
Give this procedure a chance: you’ll be surprised
Here are my developing tools. One basin, one thermometer and five plastic bottles.
The water in the basin is kept on 20° celsius (I put some cold/hot water if the temperature rises or lowers) and it keeps at the same temperature all the bottles.
The bottles, to be used in the numeric order, contain:
Developer: R09 One Shot