Maximilian Zeitler – handmade photography

Wet plate collodion workshops in Berlin K2  Glass negatives with wet collodion

Collodion  Advanced  1–2 days

K2  Glass negatives with wet collodion

You learn the negative process: dense, printable glass negatives for salt and albumen paper, with redevelopment and intensification. Experience with the positive process is required.

Workshop K2: Glasnegativ, 2026

What you learn

  • Differences between positive and negative collodion
  • Judging exposure for negatives
  • Developing for density and contrast
  • Redevelopment and intensification
  • Fixing, washing and varnishing negatives
  • Judging negatives for contact prints on salt and albumen paper

Who the course is for

For everyone who already masters the positive process, for example from K1, and wants to make their own negatives for paper prints.

FAQ about K2

Do I need previous experience?

Yes, you should be able to pour, sensitize and develop plates confidently. K1 is the right foundation.

Can I print the negatives on paper afterwards?

Yes, in the P2 Salt & albumen course or at home with the handout.

How long is the course?

One to two days, depending on whether paper prints are included. On the first day I explain the negative process, and you photograph and develop your glass negatives. The second day is all about prints: preparing salt paper and printing. Everyone makes at least two prints.

What if I have to cancel?

Up to 7 days before the course you get a full refund, after that half. If you cancel less than 48 hours before, no refund is possible.

Inquire about this course

Tell me your preferred date or whether you would like to book the course privately. I will get back to you within two working days.

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