Copal No. 1 Shutter Not Accurate

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One4All - 25 Mar 2006 00:19 GMT

Recently bought a 4 x 5 w/ Schneider G-Claron 9/210 lens & Copal No. 1
shutter. Local camera shop says shutter accurate only to 1/25, anything
above is not. The camera is a Busch Pressman D, made in the late
1940's. The lens & shutter probably replaced the originals, but I don't
know when. Obviously, the shutter got used a lot, since it's now
inaccurate.

Question: Is this a repairable problem, or will it be so expensive I
ought to replace the shutter? I plan to use the camera for landscape &
other outdoor work, such as architectural.

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NotMyName@NoSpamHere.net - 25 Mar 2006 03:16 GMT

>Recently bought a 4 x 5 w/ Schneider G-Claron 9/210 lens & Copal No. 1
>shutter. Local camera shop says shutter accurate only to 1/25, anything
[quoted text clipped - 6 lines]
>ought to replace the shutter? I plan to use the camera for landscape &
>other outdoor work, such as architectural.

Check these sites for more info:

www.flutotscamerarepair.com

www.skgrimes.com

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Bob G - 25 Mar 2006 16:11 GMT

> Recently bought a 4 x 5 w/ Schneider G-Claron 9/210 lens & Copal No. 1
> shutter. Local camera shop says shutter accurate only to 1/25, anything
> above is not. ...>
> Question: Is this a repairable problem, or will it be so expensive I
> ought to replace the shutter? I plan to use the camera for landscape &
> other outdoor work, such as architectural.

A- Copal 1 shutters don't have a "1/25" setting, rather a "1/30"
setting, unless you have a very unusual one. Are you sure it's a Copal
shutter?

B- When you say "anything above 1/25" do you mean the lower or higher
speeds?

C- How inaccurate are the speeds? ANSI standards allow +/- deviations
of 30%.

D- How reliable is your local shop's shutter tester?

E- If you know the actual speeds at each setting you can continue to
use the shutter and adjust your exposures accordingly.

F- Generally, all your shutter will need is a good cleaning. That's a
simple procedure and should run you about $50. Check the links other
responders have already offered.

Good luck!

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One4All - 25 Mar 2006 18:04 GMT

> A- Copal 1 shutters don't have a "1/25" setting, rather a "1/30"
> setting, unless you have a very unusual one. Are you sure it's a Copal
> shutter?

Yes, it is a Copal & you're right, it has a 1/30 setting. The store
clerk told me over the phone when telling me my camera was ready for
pick-up, & I didn't check before posting.

> B- When you say "anything above 1/25" do you mean the lower or higher
> speeds?

The faster speeds.

> C- How inaccurate are the speeds? ANSI standards allow +/- deviations
> of 30%.
> D- How reliable is your local shop's shutter tester?
> E- If you know the actual speeds at each setting you can continue to
> use the shutter and adjust your exposures accordingly.

I don't know the answers to the above & I'll check back with the
technician instead of dealing with the store clerk.

> F- Generally, all your shutter will need is a good cleaning. That's a
> simple procedure and should run you about $50. Check the links other
> responders have already offered.

This is good to know. I have checked the links & appreciate the info.
Thanks.

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