dhbebb Posted November 6, 2016 Share Posted November 6, 2016 <p>I have acquired a new example of this shutter and it's got me puzzled. It has a normal-looking aperture control and an opening lever BUT if you open the shutter to focus, the aperture opens fully and needs to be reset after the shutter has been closed again before making an exposure. I can see some logic in making a press shutter that works this way, but is it supposed to do this? If anyone has direct experience of this item, I'd love to hear from them!</p> Link to comment Share on other sites More sharing options...
BrianS1664879711 Posted November 6, 2016 Share Posted November 6, 2016 http://www.skgrimes.com/products/new-copal- shutters/pressshutters Description of normal operation. Addresses the aperture operation. Hope this helps. ... Link to comment Share on other sites More sharing options...
dhbebb Posted November 6, 2016 Author Share Posted November 6, 2016 <p>Yep!<br> <em>In order to view thru a selected aperture the shutter must be set to “B” or “T”</em><br> <em><br /></em>That's what I needed to know - thanks, Brian.</p> Link to comment Share on other sites More sharing options...
lutherhert Posted March 5, 2017 Share Posted March 5, 2017 I just learned the difference this evening. Simply put, with a mechanical shutter, one may view depth of field, with the press shutter, you cannot view depth of field. Also, your shutter speed is limited to about 125. Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted March 5, 2017 Share Posted March 5, 2017 Hmm. The #0 sample of Copal press shutter I have leaves the aperture as set, regardless of shutter speed.<p> Only difference between it and a standard Copal is the self-cocking mechanism.<p><br> I could (kind of) see the advantage for press work of automatically springing the aperture wide open to focus, but what pressman sticks their head under a darkcloth? Rangefinder focus was always the weapon of choice on LF press cameras. Link to comment Share on other sites More sharing options...
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