COPAL PRESS ARE THE ONLY NEW “AUTOMATIC” SHUTTERS AVAILABLE
|In addition to the usual version of the Copal shutters as supplied with virtually all large format lenses in current manufacture Copal makes another version: The Press Shutter. In the standard version the shutter is operated on a “set and release” principle. That is, a finger operation is needed to “cock” (in reality, “wind up”) the shutter. Operation is then by cable release or the release lever. The advantage of this design is twofold: First there is speed of operation, the shutter is always ready for exposure and never needs to be cocked. Second, and of great importance especially to architectural photographers is the ability to make multiple exposures without any risk of disturbing the camera setup. This means that you can take a flash picture, move the flash to another place, make another exposure, and repeat this procedure to light up a large area with only one or two flash heads. With the shutter set at 1/125 second ambient light will not add up and very dramatic results can be obtained. In the case of the Press (I don’t know the origin of why this term is applied) shutter all the operation is done via the release lever or cable release. Some extra energy is needed since the cable release actually winds up the mechanism of the shutter. Most of the specifications are the same as the ordinary shutters except:
We routinely install lenses in these,mounted to your lensboard and ready to use.
Because of the differences between the shutter versions some attention and experience is needed to ensure proper operation. Iris scales from the standard shutter do not fit the Press shutter.
To view a set of drawings of the shutters listed, click below and use scroll bars to see the whole image:
These drawings are from the original instruction sheets.
Copal Press Dimensions and Specs
*These prices are for out right purchase price.
All items (shutters, retainers, iris scales,) are priced separately.
Lenses which need machine work to remount (such as lenses in barrel or in non-compatible old shutters) usually cost an additional $225.00 – $350.00 to install.
New shutters may be worth more on trade.
Lenses which need machine work to deal with the iris touching the back element are typically an additional $50.00 -$100.00.