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White plastic bottle of Ilford Ilfosol-3 film developer, 500 ml

Ilford

Ilford Ilfosol-3 Film Developer 500ml #1176108

SKU CH-SDZM-14TBP

Liquid concentrate developer for black-and-white film, suited to medium and slow speeds with fine grain and full film speed at 1+9 dilution

  • Professional monochrome results from modern developing-agent blend
  • Fine grain and full film speed with medium and slow films
  • Liquid concentrate enables economical one-shot processing at 1+9 dilution
  • Greater economy possible at 1+14 dilution for higher temperatures
  • 500 ml (16.9 oz) bottle supplies multiple development sessions

Ilford Ilfosol-3 Liquid Concentrate Developer

Ilford Ilfosol-3 is a general purpose liquid concentrate developer designed for black and white film processing. It is particularly suited to medium and slow speed films such as FP4 Plus and PAN F Plus. The formula delivers fine grain and good sharpness while retaining full film speed. Supplied in a 500ml bottle, it offers an essential tool for monochrome photographers.

Dilution Ratios and One-Shot Processing Limits

The concentrate is recommended for dilution at 1+9 for standard use, yielding approximately 5 litres of working solution from the 500ml bottle. For greater economy or higher temperature processing, it can be diluted further to 1+14. It is designed for one-shot processing only, meaning the working solution is discarded after a single development session. This constraint requires fresh mixing for each batch of film developed.

Replaces Powder Developers for Convenience

This liquid concentrate replaces traditional powder developers that require careful measuring and longer dissolution times. It eliminates the risk of incomplete mixing or dust inhalation associated with dry chemicals. The jump is worth it for home darkroom users who value repeatable results and quick preparation. It is not for high-volume labs needing reusable tank solutions or photographers processing large format sheets in deep tanks.

Highlights

  • Professional monochrome results from modern developing-agent blend
  • Fine grain and full film speed with medium and slow films
  • Liquid concentrate enables economical one-shot processing at 1+9 dilution
  • Greater economy possible at 1+14 dilution for higher temperatures
  • 500 ml (16.9 oz) bottle supplies multiple development sessions

Specifications

No published specifications for this item yet.

Questions about this item

Which dilution should I use for one-shot processing with this 500ml concentrate?

The concentrate is recommended at 1+9 for standard one-shot use, or 1+14 for greater economy or higher temperature working.

What grain and sharpness results can I expect from this developer on medium-speed films?

It is formulated to deliver fine grain and good sharpness while retaining full film speed on medium and slow emulsions such as FP4 Plus and PAN F Plus.

How much working solution does the 500ml bottle yield at the standard dilution?

At the recommended 1+9 dilution, the 500ml concentrate produces 5 litres of working developer for one-shot processing.

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