Posted by Brian Wright on

Developing black and white film just got a whole lot simpler with the CineStill Df96 Monobath. The worries of too much development, dilution, time or agitation are gone. Stop bath? Fixer? Hardener? Gone the way of One-Hour-Photos and formaldehyde. Finally, foolproof at home film processing. 

Many of the pitfalls and hazards of a multi-bath process are eliminated with this ready-to-use single-step solution, such as improper dilution, over-agitation, bubble marks, surge marks, etc. Over-processing is impossible, because the fixing action overtakes chemical development while aiding physical development, creating better image uniformity and finer grain negatives.

Monobath solutions were first proposed as far back as 1889, but only recently have the difficulties associated with their formulation been possible to overcome. The main problem has been the loss of emulsion speed that results when the exposed silver halide is dissolved by the fixation process, before development can take place. Our monobath is unlike home concoctions or old technology that failed years ago. Df96 uses a more effective processing technology (akin to D96 motion picture developer) that buffers fixing, and archival fixing agents that are more solvent and aid in breaking down the silver and redepositing it, to achieve crisp uniform grain and wide development latitude.

Fully Archival Processing:
Df96 uses one of the the most effective archival fixing agents and will produce fully archival negatives with proper care. Extending processing time to ensure full removal (fixing) of undeveloped silver halide will not affect development. Washing time after Df96 processing is exceedingly rapid because the solution is alkaline. Five minutes of washing is sufficient to achieve archival standards! This self-terminating process is fully archival, and it boosts shadow development while terminating highlights from over-processing.

Easy to Use: 
If you have a processing tank and know the room temperature, you’ve got everything you need to start developing CineStill BwXX or any other black and white film at home. Just determine the temperature of the ready-to-use solution, choose the recommended time/agitation combination on the label, and pour.

Cost Effective: 
Available at for only $16.99, and will be distributed worldwide through our Dealers. 1L of reusable monobath solution will easily develop 16+ rolls of film. Simply pour the used chemistry back into the bottle and add 15 seconds for each roll previously processed. 

Df96 monobath works with any black and white film, and is designed for traditional cubic-grain emulsions with high silver content, like BwXX and TriX  All films can be pushed or pulled by adjusting temp. +/-10°F per stop.

Quality Results: A self-completing process guarantees that high resolution and fine grain motion picture quality negatives are just a single pour away. 


  • Ready-to-use processing for traditional B&W film in 1 bath
  • Worlds fastest process at 80°F in just 3min!
  • Flexible processing temperatures (70-80°F)
  • Instructions for processing at any room temperature included
  • Temp. tolerance is +/-2°F
  • For normal or push processing
  • Push/Pull processing by adjusting temp. +/- 10°F
  • Reusable, all-in-one solution.
  • Processes over 16+ rolls of film
  • Process 1-8 rolls at a time
  • Extremely versatile self-completing process
  • No special processor needed (use standard processing tanks and reels)
  • Odor-free (unlike home concoctions or old formulations)
  • Fully archival
  • Economical!

Finally, a modern monobath solution for modern film photography! This easy to use solution is not only ideal for beginners interested in developing their film at home for the first time, but will also improve the results of veteran darkroom enthusiasts as well. Try it yourself to become a monobath believer!

Df96 ships worldwide from and will also be available through our Dealers. Visit to our Dealers page to find a shop near you or speak with your local shop and ask them to stock it.

Long live film!

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  • Can I please have a sheet containing developing time? I use Kodak Tri-X. Pushing 1 step 10 iso 800.

    Mats Gustafsson on
  • Hi which is the nearest shop I can buy the monobath from? I live in Europe / Cyprus

  • What about Rollei Ortho 25? Any special consideration?

    oz on
  • @Lars, It works well with fomapan and ilford films, just remember to add time to processing for films like Delta with color dye technology, which needs to be removed.

    @Alan, Thanks for your support! Any film will develop with the methods listed on the bottle, but you should double the process time for films that come out with purplish dyes if not processed longer. Cheers!

    Brian on
  • Though I’ve been developing B&W film for 40+ years, I’ve never used a monobath. Just ordered your new Df96 to try and I will be processing at 80F (it’s summer and I live in the desert.) So, I develop the film for 3 mins with constant agitation. Any film? Any film speed? In other words, all B&W films, regardless of brand and/or speed, develop for that same 3 mins?

    Alan on

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