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B.S.Kumar

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• Dec 12, 2023

• #1

SOLD!

 

Last edited: May 20, 2024

Nicholas Lindan

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• Dec 12, 2023

• #2

What is the difference Copal No. 3 Vs 3s???

I have several Copal No. 3 and one Copal No. 3s on the way. Please, What is the s suffix for? I tried the search but it is useless, I get no hits or thousands with no in-between. Is there any way to use logical expressions in a LF forum search?

www.largeformatphotography.info

 

Ian C

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• Dec 13, 2023

• #3

From S.K.Grimes site:

Copal Dimensions and Specs

COPAL spec.​	#0​	#1​	#3​	#3s​
front thread​	M29.5-0.5​	M40-0.75​	M58-0.75​	M56-0.75​
back thread​	M29.5-0.5​	M36-0.75​	M58-0.75​	M56-0.75​
overall thickness​	20 mm​	20 mm​	32 mm​	28.6 mm​
front to shutter​	10.2 mm​	10.75 mm​	17.7 mm​	16.25 mm​
mount thread​	M32.5-0.5​	M39-0.75​	M62-0.75​	M61-0.75​
lensboard hole​	34.6 mm​	41.6 mm​	65 mm​	64.1 mm​
iris dia​	24 mm​	30 mm​	45 mm​	45 mm​
price*​	$426.00​	$585.00​	$1190.00​	$1190.00​

​

 

Ian C

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• Dec 13, 2023

• #4

In addition to different threading and mounting hole diameter, the 3S is set up for a different cell spacing, 32 mm on the Copal 3, and 28.6 mm on the 3S.

 

Last edited: Dec 13, 2023

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B.S.Kumar

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• Dec 13, 2023

• #5

Thank you, Nicholas & Ian.

Kumar