Need "Scan" of f/9 Scale for 150 G-Claron

Mike1234

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Could someone scan the f/9 aperture scale from there 150mm G-Claron? I can't afford to pay $79 plus shipping for a new one.

1:1 at 300 DPI would be perfect!! This way I can make my own scale accurately.

Thanks to anyone who can help!!
 

Mick Fagan

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I have a Schneider G - Claron 1:9/150. I saved it from an old German repro camera I used for many years.

However I'm not sure whether it can be scanned. The flat bed scanning I'm assuming you are talking about won't work as the aperture scale is on a curved surface.

Or, am I thinking of the incorrect thing?

The scale isn't linear either, from f9 it goes in ½ stops to to f64, but things get closer as you get smaller in aperture.

I do know that there is about 1.1mm movement between f45 and f64 whilst there is about 2.3mm between f9 and the halfway mark to the next f stop.

The aperture blades form an almost perfect circle, I think from memory there are 13 of them. I just did a rough count, I think that is correct.

Mick.
 
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Mike1234

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Hi Mick,

The front scale can either be unscrewed and scanned flat or, if you're uncomfortable doing that, you can just remove the front lens cell, rotate the aperture to the widest setting to get the chrome arrow out of the way, and scan the front of the shutter. It's true the side f/scale matches the curve of the shutter. I won't ask you to remove, straighten, and scan that one. It can be done without damage to the side scale but I won't ask anyone to risk it because great care must be taken to prevent sharp bends. Besides... once I have the front scale done I can just match the side scale using the front one as a reference.

All the Best,
Mike



 

Mick Fagan

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Mike, my lens must be quite different to what you think it is like.

The aperture stops are engraved around the lens, just like a lens on any camera.

My lens number is:- 11 325 227, which will give you an idea of when it was manufactured.

There isn't anything that can be peeled off and laid flat, trust me on that!

Mick.
 

Mick Fagan

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Ah, I just realised you must be talking about the aperture on a shutter.

I don't have a shutter on this lens!

Mick.
 
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Mike1234

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LOL!! Yes... I should have said it's in a Copal #0 shutter. This feeble brain of mine fails me all too often. Sorry for the confusion.
 

JBrunner

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Mike, I have one I can scan for you, but I can't do it (hehe..I said "do it"..hehe) until Thursday.
 
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