An Introduction to Gum Bichromate Printing

An Introduction to Gum Bichromate Printing

1 December 2018 - 2 December 2018
11.00 - 17.00
Brittonie Fletcher

Most photographic processes are essentially the product of chemical interaction, but gum printing is a balance between chemical and physical interaction. There are a variety of ways in which gum may be utilised and an extensive mix of effects achieved. 

Popularised by the Pictorialists the use of gum bichromate dates to the mid 1800s. This charming and versatile process has significant ties to Scotland as the chemistry's light sensitivity was first discovered and experimented with by Edinburgh's own inventor, Mungo Ponton in 1839. 

This course is suitable for beginners and experienced photographers wanting to brush up on skills and learn some new tricks. It is also a perfect weekend introduction to Alternative Processes and will provide excellent structure for future exploration and enable you to work confidently on your own creative projects. 

The course will:

  • Include a short history of the process 
  • Guide you through the steps involved in chemical preparation
  • Discuss and work through proper exposure times
  • Provide you with comprehensive instructions so you can continue with the process on your own.
Please Note Negatives will be prepared from digital files for you to work with in advance of the course. Please email 4 image files at least 1 week in advance of the course start date. Image files should be 300dpi resolution and approximately 2000 pixels on their longest side. Please email if you have any questions or would prefer to have sample images provided for you.

Course Outline

Day 1:

  • Summary overview of the process
  • Explanation of all equipment and chemistry
  • Relevant chemical Health and Safety
  • Discussion of different papers and materials 
  • Paper ‘sizing’
  • Negatives and source material for prints
  • Preparing solutions
  • Chemistry application 
  • Exposing & developing

Day 2:  Image making all day, with further discussion on:

  • Contrast control
  • Registration
  • Colour separations 
  • Discussion of further experimentation and pushing the process
Courses are open to all individuals aged 16 and over. We cannot accept bookings for participants under this age.

Book Now  or call us on 0131 622 6200.

Please read our cancellation policy before booking

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