Film developer Foma Retro Special 1L V70025 – 1 litre chemical for black-and-white film development

Foma Retro Special 1L V70025 is a ready-to-use 1-litre film developer formulated for black-and-white silver-based photographic films. Supplied in a single-dose container, the developer is intended for darkroom use with developing tanks, reels or trays. The solution is balanced to deliver consistent negative density and smooth tonal gradation across a variety of classic and modern B&W emulsions, making it suitable for hobbyists, educators and small studios seeking predictable processing results without on-site dilution.

Advantages

This ready-to-use film developer eliminates the need for mixing concentrated chemicals, reducing preparation time and potential dosing errors. It produces reliable contrast control and even grain rendering, helping to maintain details across shadow and highlight areas. The single-litre format is convenient for short processing sessions and for storage between uses, while the formulation is compatible with many common black-and-white negative films, providing reproducible results under standard darkroom conditions.

Suitable for

• Developing 35mm and 120 black-and-white film in tanks and reels
• Small studio and home darkroom processing
• Educational darkroom labs and photography workshops
• Test rolls and short runs where ready-to-use chemistry is preferred

Key specifications

• Volume: 1 litre ready-to-use solution
• Intended use: black-and-white silver-based negative films
• Compatibility: suitable for tank, reel and tray development
• Tonal characteristics: balanced contrast with smooth gradation
• Storage: packaged for straightforward storage and dosing

How to use

Use the developer in a light-tight environment following standard darkroom procedures. Load film onto reels in complete darkness, place the reels into a development tank and pour the ready-to-use solution into the tank to cover the film. Agitate according to the film manufacturer's recommended times and agitation schedule adjusted for the desired contrast and film speed. After development, stop, fix, wash and dry the negatives according to established darkroom practice. Dispose of spent solution in accordance with local regulations.

Usage recommendations

For consistent results, test a short roll using the specified development time for the film brand and ISO you use. Maintain consistent temperature during processing and avoid dilution or mixing with other developers. Replace the solution after it becomes exhausted and store unopened containers in a cool, dark place.