Huss
Member
@Huss #626 is my fave!
Hasselblad H1, 80mm 2.8, Shanghai GPX100 220, Cinestill DF96 Monobath
If you followed the package directions for temperature and agitation, you can't over- or under-develop. Thin negative would be underdeveloped, anyway, not overdeveloped.
Is your Kentmere black on the negative (= fogged), or black in the scan (= deeply underexposed/underdeveloped)?
The easy way to tell if there is something wrong with the developer is to look at the end of the film leader - where it is exposed to the world when you load your camera.
It should be solid black. If it is there is nothing wrong w the DF96. If it is solid black but your actual images are thin, then you have underexposed your images.
Also... when you first open the bottle - the very first time you use it - the liquid should be clear. If it is already yellow then the seal has failed and it has started to oxidize rendering it less effective.
The easiest way to make sure you always have 100% fresh DF96 is to order it in the powdered/crystalline form and mix it up w/ distilled water. Then store it in an air tight container.
My area is hot atm (outsie 26-27C)/ I managed to lower the temp for the DF96 to 24C and processed just like the instruction : Working at 24C with intermittent agitation (30 sec constant agitation, then 10 sec every min.) for 4 mins, Fomapan is grey, the negative seems having a light purple colour. While Kentmere is mostly black or dark, barely seen some details inside.
The film leader is in all black, and I tried with a roll or accidentally exposed film, all complete black just same as the leader. I believe the DF96 works . And I can see the liquid was clear at first. After these 2 attempts I can see the solution has start getting cloudy inside with sediments .
If the film leader is black then the DF96 is fine. It sounds like exposure error when you took the photos.
How about showing us a pic of your negatives?
For the Kentmere 400 to be dark even on the sprocket holes/film rebate, the entire film strip has been exposed to light.
For the Foma 100 - Was the film leader completely black? If so then it looks underexposed in camera.
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