DB or regular shutter for 75 mm lens on sinar camera

<p>hi friends!</p>

<p>i need a 75mm for my sinar P.<br /> do you think it's better a lens with its own shutter (copal-compur-prontor)<br /> or a lens DB mount (with sinar-copal shutter)?<br /> i have some sinar shutters therefore it's not a problem.<br />but i think the rear+front+shutter thickness 'll limit camera movements<br /> (tilt and swing). <br /> at present i use a gradagon 65 4.5 with compur 0 on recessed lensboard, and a 90 4.5 with compur on standard lensboard.<br /> <br /> thanks in advance.<br /> angelo </p>

<p>___________________<br>

ENJOY LF PHOTOGRAPHY!</p>

<p>Hello Angelo, I don't use my Sinar X with an electronic shutter, but I can see your point. Not much of an answer, but this is one I would definitely run by Sinar to get their opinions. I couldn't tell by your profile where you live, but Sinar/Bron has always been a great resource for me (I live in the US).</p>

<p>I have used an electronic shutter with longer lenses in a studio environment, and didn't think it was too restrictive, size-wise. I would imagine a bag bellows would help, and wouldn't think the bag bellows and shutter setup would be too cumbersome.</p>

<p>thanks Michael,</p>

<p>I use mechanical sinar-copal (it's thinner than electronic shutter)<br>

and I use wide lens mainly outdoor.</p>

<p>bye from italy.<br>

angelo</p>

<p>Angelo,</p>

<p>I assume that the Sinar "shutter(s)" you're referring to is the Auto-shutter that accepts the shutterless lenses mounted in the DB mounts?</p>

<p>Are you using a wide-angle bellows?</p>

<p>To answer your question directly, personally speaking, I wouldn't go back to the Sinar Auto-shutter since I had 2 new ones and they both packed it in. As a result, I would select a lens mounted in either a Copal/Compur shutter and, since I've had no experience with the Prontor shutter, I won't/can't speak to them.</p>

<p>One big advantage of the Sinar Auto-shutter is that your exposures would be consistent given that you're using the same shutter for all of your glass. The big disadvantage is that you're held ransom if your shutter happens to go down. Having separate shutter mounted lenses means that, should the shutter go down in one of your lenses, you're able to continue on on your shoot by either using a different shutter mounted lens or switch shutters (if they both take the same size shutter).</p>

<p>That said, there are lots of Auto-shutter users out there that have had no issues with their units.</p>

<p>Hope that helps.</p>

<p>Cheers</p>