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 in 3-6 min, 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, youve 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.
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.
Can process 16+ rolls of film. Simply recombine used chemistry and add +15sec. for each roll previously processed until you reach 8 min. Depending on silver content of film types, you should be able to continue reusing until you reach an unacceptable processing time or the chemicals turn to silver sludge. Film will still develop when chemicals exhaust but may need added clearing time or additional fixing. Expected shelf life is 1 year from purchase, and once opened should be used within 2 months. As chemicals age they will start to yellow and will turn amber when perished.
Process all B&W Film:
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. Some tabular grain films, like T-Max, with color dye technology may come out of the bath with pink/purple dyes in the emulsion, require +2x the clearing time and recommend temp. over 27°C. High speed 3200 films like P3200 and Delta3200 can be processed normal if rated at 1000 ISO or processed over 32°C it rated at 3200. All films can be pushed or pulled by adjusting temp. +/-6°C per stop.
Processing Methods for Df96:
Development is affected more than fixing by temperature, but fixing and completion is affected more by agitation, time and concentration.
*Temp tolerance is +/-1°C and times are minimum. Feel free to extend processing time to ensure full fixing of film. It will not affect development.
Native ISO development:
27°C for at least 3min • Constant agitation
24°C for at least 4min. • Intermittent agitation
21°C for at least 6min. • Minimal agitation
*Below 20°C renders pulled contrast negatives
30°C for at least 4 min • Intermittent agitation
21°C for at least 4 min • Constant agitation
18°C for at least 6 min • Intermittent agitation
3200 speed BW films (push 2 stops):
Above 32°C for at least 4 min • Intermittent agitation
Agitation helps create evenly developed exposures, and prevents over-processed under-fixed negatives.
Fluid inversions and/or rotations, while changing direction.
30 sec agitation, then 10 sec every min.
10 sec agitation, then 5 sec every min.
*Bromide drag lines can occur if left to stand for any more than 1 min.
FULLY ARCHIVAL PROCESSING:
For any processed film to be fully archival only two things need to occur. Full removal (fixing) of undeveloped silver halide, and removal (washing) of processing chemicals from the film.
Archival fixing occurs in 3-6 minutes with fresh Df96. Feel free to extend processing time to ensure full fixing of film. It will not affect development. Df96 uses one of the the most effective archival fixing agents and should produce fully archival negatives when processing instructions are followed.
Archival washing occurs at room temperature under running water for 5 min, or fill and empty tank at least 10 times. Washing time after Df96 processing is exceedingly rapid because the solution is alkaline. No more than five minutes is needed for a wash to archival standards. A longer final rinse and rinse aid will help ensure archival negatives.
For minimal water usage:
• After negatives are fully fixed, fill the tank with water at the same temperature +/-6°C as the processing solutions. Invert the tank 5 times.
• Drain the water away and refill. Invert the tank 10 times.
• Once more, drain the water. Invert the tank twenty times and drain the water away.
• Then rinse one final time, optionally with a few drops of Wetting Agent added to the rinse water, distilled water helps prevent hard water spots.
• Ready-to-use processing for traditional B&W film in 1 bath
• Worlds fastest process at 27°C in just 3min!
• Flexible processing temperatures (21-27°C)
• Instructions for processing at any room temperature included
• Temp. tolerance is (+/-1°C)
• For normal or push processing
• Push/Pull processing by adjusting temp. (+/-6°C)
• 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)
• Fully archival
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