Sure you've heard of wet collodion for large format. We'll be featuring the less known dry collodion negative process this year in a special George Eastman House workshop at Fox Talbot Museum, Lacock Abbey. This is where the negative was invented in 1835! Ok...Harry Potter was filmed there too.

The workshop starts with Mark Osterman and France Scully Osterman guiding participants in making ambrotypes, then tintypes and later in the week, dry collodion negatives. These plates can be prepared months ahead of time and developed weeks after exposure, dispensing with the portable darkroom and silver bath as needed for the wet plate process.

If you are only interested in ambrotypes and tintypes, a separate workshop without the dry collodion negative will also be taught. Check the 2012 George Eastman House Photography Workshop Schedule below.

Lacock is a destination workshop...the entire village is protected by the National Trust. Bath is just a few miles away and the town with its ancient Roman Baths are great place to visit in the evening. Enjoy a great photographic experience where the medium was invented.

Questions? Contact Mark Osterman at

There are only a few places open in this register as soon as possible. For registration information go to: