Threaded rings for lens shutters
For large-format cameras
Threaded retaining rings to mount Copal, Compur and Prontor lens shutters on large-format camera lensboards.
For thread sizes up to 66mm, the rings are made in brass. For larger sizes the ring may be made in aluminium. The rings are partially painted matte black on rear.
Available for lens shutter sizes #00, #0, #1, #3 and #3S. Also available for Compur 2, Compound 3, Compound 4, Seiko 1 and Ilex 5 lens shutters.
For vintage Compur 2 and Compound 3 shutters, lensboard adapters to fit Copal 3 lensboards are available on “Lensboard shutter adapters”.
For Copal lens shutter sizes
| Threaded retaining ring for large-format #00 lens shutters with 25mm x 0.5 thread for Compur 00 lens shutters made to fit #00 drilled lensboards with 26.3mm diameter hole | EUR 10.00 | |
| Threaded retaining ring for large-format #0 lens shutters with 32.5mm x 0.5 thread for Compur 0, Copal 0 and Prontor 0 lens shutters made to fit #0 drilled lensboards with 34.6mm diameter hole | EUR 10.00 | |
| Threaded retaining ring for large-format #1 lens shutters with 39mm x 0.75 thread for Compur 1, Copal 1 and Prontor 1 lens shutters made to fit #1 drilled lensboards with 41.6mm diameter hole | EUR 12.50 | |
| Threaded retaining ring for large-format #3 lens shutters with 62mm x 0.75 thread for Compur 3, Copal 3 and Prontor 3 lens shutters made to fit #3 drilled lensboards with 65mm diameter hole | EUR 20.00 | |
| Threaded retaining ring for large-format #3S lens shutters with 61mm x 0.75 thread for Copal 3S lens shutters made to fit #3 drilled lensboards with 65mm diameter hole | EUR 20.00 |
For Compur and Compound lens shutters
| Threaded retaining ring for Compur shutters with 44mm x 0.9 thread made to fit lensboards with 46.5mm diameter hole | EUR 18.00 | |
| Threaded retaining ring for Compur 2-X Tube 5 shutters with 50mm x 29-1/13tpi thread for Compur 2 lens shutters with 50mm diameter thread made to fit lensboards with 52.5mm diameter hole | EUR 20.00 | |
| Threaded retaining ring for Compur 2-X Tube 6 shutters with 55.8mm x 29-1/13tpi thread for Compur 2 lens shutters with 55.8mm diameter thread made to fit lensboards with 58.3mm diameter hole | EUR 20.00 | |
| Threaded retaining ring for Compound 3-X Tube 7 shutters with 60mm x 29-1/13tpi thread for Compound 3 lens shutters with 60mm diameter thread made to fit lensboards with 62.5mm diameter hole | EUR 20.00 | |
| Threaded retaining ring for Compound 4-X Tube 9 shutters with 65.9mm x 29-1/13tpi thread for Compound 4 lens shutters with 65.9mm diameter thread made to fit lensboards with 68.4mm diameter hole | EUR 20.00 | |
| Threaded retaining ring for Compound 4-X Tube 10 shutters with 76.7mm x 29-1/13tpi thread for Compound 4 lens shutters with 76.7mm diameter thread made to fit lensboards with 79.2mm diameter hole | EUR 25.00 |
For Seiko lens shutter sizes
| Threaded retaining ring for Seiko 1 shutters with 46mm x 0.75 thread for Seiko 1 lens shutters with 46mm diameter thread made to fit lensboards with 50mm diameter hole | EUR 18.00 |
For Ilex lens shutter sizes
| Threaded retaining ring for Ilex 5 shutters with 3.225″ x 30 thread for Ilex 5 lens shutters with 81.9mm diameter thread made to fit lensboards with 84.5mm diameter hole | EUR 25.00 |
Contact for a custom made adapter for lens shutters