Mamiya RB67: Replacing Light Seals
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
Replacing light Seals on Mamiya RB67. There are quite a few light seals on the Mamiya RB67- the film back alone has ten seals with five different lengths and widths. I get contacted regularly for this service and my response is that I will replace light seals as part of a camera service but if all that is needed is seals, it can be a DIY job these days with the pre-cut self adhesive light seals available. It’s not a fun job, takes a bit of time especially to scrape out the old seals and can be a bit messy. These three photos show 1.) RB67 120 back with all needed seals ready to begin cleaning out the old ones 2.) RB67 revolving back assembly ready for cleaning and new seals and 3.) mirror box on RB67 showing one of two seals on the mirror.


