Compound shutter identification

zonesys

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• Apr 11, 2005

• #1

Hi everybody,

I've just picked up from a family estate an 9/480 mm APo Ronar mounted on a Compound shutter, I intend to use on my 8x10 Wista Field.
Unfortunately, the mounting flange is missing. Googling on the web, I've understood there are different models of Compound shutter (3, 4, 5..).
How can I identifie mine ? Ass you can imagine it is quite large to support the Apo-Ronar cells which have a 69mm diameter barrel.

Thank you
zonesys

 

bobfowler

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• Apr 11, 2005

• #2

zonesys said:

Hi everybody,

I've just picked up from a family estate an 9/480 mm APo Ronar mounted on a Compound shutter, I intend to use on my 8x10 Wista Field.
Unfortunately, the mounting flange is missing. Googling on the web, I've understood there are different models of Compound shutter (3, 4, 5..).
How can I identifie mine ? Ass you can imagine it is quite large to support the Apo-Ronar cells which have a 69mm diameter barrel.

Thank you
zonesys

Click to expand...

Probably a #5, but I don't have my copy of "Handbook of Photography" by Henney and Dudley (1939). It has information tables for the various size compound shutters (and others). If no one else comes up with a definitive yes or no, I'll check this evening when I get home.

 

Ole

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• Apr 11, 2005

• #3

In a comment to my own article "The Bottom-feeders Guide to german Lenses", I have listed the dimensions of the Compound shutters. Just click on "articles".

 

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zonesys

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• Apr 12, 2005

• #4

Hi Ole,

Thank you for the information. Where can I find your article ?
zonesys

 

Ole

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• Apr 12, 2005

• #5

On the top of this page, click on "Articles"...

 

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zonesys

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• Apr 13, 2005

• #6

Hi Ole,

Thank you for these usefull informations. I measured the thread diameter at 76.60mm, so I guess it is a number 4 10/II. This seems to be confirmed by the shutter diameter at 106mm as in your table. By the way, what does 10/II means ?
zonesys

 

Ole

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• Apr 13, 2005

• #7

"What does 10/II mean?"

An exellent question, and one I have no good anwer for. It seems to specify the length and diameter of the tube the cells are screwed into?

The glass diameter (really the front optical apertore) of a 480/9 lens should be the same as a 240/4.5 lens, and the 210/4.5 Xenar takes a #3 shutter. And the 300/4.5 takes a #5, so it seems reasonable with a #4 for this size.

 

pierre506

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• Feb 16, 2012

• #8

I am surely that it's No.4 Compound shutter.