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Hi All,
I have a 355 G Claron in barrel. I have been trying to figure out what shutter might directly fit this lens. I had a Copal 3 but the threaded area of the lens was smaller that the opening in the shutter. My 305 G Claron screwed nicely into
Copal 1, would like to find a shutter that the 355 would screw directly without machining.
Thanks, Steve
Most 355 G Clarons are a direct fit to a Copal 3 Not a 3S. I did say "most".
A 3S? is that a different type of Copal 3? Someone had told me that Nikon Copal 3 might be different. Thinking the one I had may have been Rodenstock.
There’s an entire thread on a Copal shutters. You may want to search for it.
https://www.largeformatphotography.i...ters-Varriants
https://www.largeformatphotography.i...pal-No-3-Vs-3s
COPAL #3 #3sQuote:
Originally Posted by Smitty
front thread M58-0.75 M56-0.75
back thread M58-0.75 M56-0.75
overall thickness 32 mm 28.6 mm
front to iris 17.7 mm 16.25 mm
mount thread M62-0.75 M61-0.75
lensboard hole 65 mm 64.1 mm
iris dia 45 mm 45 mm
Mine’s in a Copal 3.
My 355 G-Claron directly threaded into a Compur 3 (same size a Copal 3)...
A Compound III is another possibility - fractionally smaller than the 3s. The earliest brochure I could find for the G Clarons (1976) had the 355 listed as "in vorbereitung" (in preparation) and the 305 mounted in a Compur II/5 so it might be that early examples went into a Compund III before being reworked for a Copal 3.
{edit} What is the serial number? Might be able to work out the age from that which would give a clue as to the shutter.
From the SKG Website:
https://skgrimes.com/products/new-co...standardcopals
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