I have several #00 shutter view lenses, including a modified 58mm XL Grandagon in a sunken custom-made recessed board, and a 65mm Sinar Super Anugulon F8 with original center filter (which helps a lot).
These are good shutters. Sinar offered them for many years to use on the Norma cameras. They can be easily cleaned by a good repairperson.
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