The Copal #1 Shutter is a high performance, durable and large size shutter designed for the professional photographer. Charging the shutter, opening or closing the shutter blades, changing the shutter speeds, changing the aperture stop can be manipulated in any order without the least ill effect on the shutter mechanism.
Copal lens shutters for medium and large format cameras were developed exclusively for the professional market and intended for use with high quality inner and outer lenses. They are able to fulfill all the conditions demanded by every kind of art, industrial and scientific photography. Includes rear retaining rings.
| Front Thread |
40mm PO.75 |
| Rear Thread |
36mm PO.75 |
| Overall Thickness | Not Specified by Manufacturer |
| Diameter | Outer: 73mm |
| Mount Thread |
Front & Rear lens mounting length: 20mm ±0.025 |
| Cable Release Socket |
3.2mm PO.75 |
| Shutter Speeds | 1 ~ 1/400 sec, T, B |
| Iris Diameter |
0.059 - 0.94"(1.5mm - 24mm) (5 blades) Minimum iris opening: 0.8" (2.0mm) Maximum iris opening: 1.18" (30mm) (7 blades) |
| Synchronization |
X contact only Synchro trigger energy durability: <12mWS |
| Weight | 5.64 oz (160 g) |
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Comments about Copal #1 Shutter:
I used this to replace the shutter on a lens whose shutter had worn out. For just a few extra dollars over the repair costs of an old shutter, buy this new one and end your worries. Smooth, accurate and trouble free - because it's brand new.
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