Ilford ID11 vs Bergger PMK: Which B&W Developer Fits?
By Firstcall Photographic | Published: 2026-10-31
Category: Comparisons
Compare Ilford ID11 and Bergger PMK on grain, sharpness, staining and mixing effort. See which black and white film developer suits your workflow and how to mix each safely.
Quick answer
Choose Ilford ID11 if you want a fine-grain, standard powder developer that works predictably across many films and is simple to mix. Choose Bergger PMK if you prioritize maximum sharpness and very fine grain and are willing to handle a staining, two-part developer with more mixing care.
What separates a powder developer from a staining developer
ID11 is a powder developer that you dissolve in water to make a stock solution. It is a conventional fine-grain developer designed to preserve emulsion speed. PMK is a two-part liquid developer that stains the negative yellow (a pyro effect) while producing great sharpness and very fine grain. The stain is not a defect; it is part of how PMK works, and it can affect how you read and print the negative.
The practical difference is workflow. ID11 asks you to mix a stock solution once and then dilute it for use. PMK asks you to combine Part A and Part B at the time of use, and the staining behavior means you should expect yellow negatives and plan your printing or scanning accordingly.
Mixing and storage effort
ID11 is supplied as a powder to make 5L of stock solution. Mixing a large volume at once means you need a clean storage container and a plan for using it within its working life. PMK is supplied as two parts that together make 25L of working solution, but because it is a staining developer you mix only what you need for a session rather than storing a large volume of working solution.
If you process film infrequently, a large stock solution can become a commitment. If you process often, a stock solution is convenient and consistent. PMK's two-part format gives you flexibility to mix small batches, but it adds a measuring step each time.
Negative character and printing implications
ID11 is known for fine grain without loss of emulsion speed, and it is recognized as a standard in scientific and technical photography. That makes it a reliable choice when you need consistent, straightforward negatives across a range of films and speeds.
PMK's yellow pyro stain can be an advantage for some printing processes because the stain can act as a contrast mask, but it also means your negatives will not look neutral gray. If you scan, the stain may require adjustments to your workflow. The catalog describes PMK as offering great sharpness and very fine grain, with pyro often perceived as offering the best quality result, but that quality comes with the need to manage the stain.
Trade-offs at a glance
- Grain and sharpness: ID11 delivers fine grain with preserved emulsion speed. PMK delivers great sharpness and very fine grain, with pyro staining often perceived as the best quality result. If you want neutral negatives and predictable grain, ID11 is the safer choice; if you want maximum sharpness and accept staining, PMK is the specialist option.
- Mixing and storage: ID11 is a powder that makes 5L of stock solution; mix once and store. PMK is a two-part liquid that makes 25L total; mix Part A and B only for the session you need. Infrequent processors may prefer PMK's small-batch mixing; frequent processors may prefer ID11's stock solution convenience.
- Negative appearance and workflow: ID11 produces conventional gray negatives. PMK produces yellow-stained negatives due to pyro, which may require adjustments when printing or scanning. Check that your printing or scanning workflow can handle stained negatives before committing to PMK.
Product facts
- Bergger PMK Film Developer Parts A & B - Makes 25L: Two-part universal film developer that makes 25L; original formula by Gordon Hutchings, now made in Germany. You mix Part A and Part B at use time, so you can prepare only what you need and avoid storing a large working solution.
Bergger PMK Film Developer Parts A & B - Makes 25L - Ilford ID11 Film Developer - 5L: Fine grain powder developer that makes 5L of stock solution and preserves emulsion speed. A single stock solution covers many films and speeds, which simplifies processing when you shoot a mix of films.
Ilford ID11 Film Developer - 5L
Which developer is right for you?
Best for
- Photographers who want a reliable, fine-grain developer for a wide range of films and speeds
- Users who prefer a simple powder stock solution and predictable results
- Those who process film regularly and want a consistent standard developer
Not for
- Photographers who want maximum sharpness and are willing to manage pyro staining
- Users who process infrequently and prefer mixing small batches on demand
- Anyone who needs neutral-colored negatives for their workflow
