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baachitraka
17-Nov-2022, 02:04
I have three nice Dagors in 120, 130 and 168mm and all these three lenses came with compound shutter.

1) I looking for compound shutter sizes esp., diameters for the lens opening etc.,

2) It is possible to use these lenses in Compur shutters, I guess they are different in sizes.
Vaidotas
17-Nov-2022, 04:00
https://www.largeformatphotography.info/forum/showthread.php?23904-Compound-shutter-sizes&p=223663#post223663
baachitraka
17-Nov-2022, 05:05
https://www.largeformatphotography.info/forum/showthread.php?23904-Compound-shutter-sizes&p=223663#post223663

https://www.suaudeau.eu/memo/pratique/Les_obturateurs_centraux.html

I got this "Compound premier modèle" unfortunately these are kind of earlier models and also there is no compurs in this size. :-(
Tin Can
17-Nov-2022, 05:18
This why I mount Packard shutters behind the lens board
baachitraka
17-Nov-2022, 06:49
This why I mount Packard shutters behind the lens board

good idea indeed. There are so many good barrel lenses which needs to be used. I will look into this shutters soon.
ridax
17-Nov-2022, 09:38
https://www.suaudeau.eu/memo/pratique/Les_obturateurs_centraux.html
I got this "Compound premier modèle" unfortunately these are kind of earlier models and also there is no compurs in this size. :-(

I have two Dagors in that size shutters. One is in a Compound and the other is in a Rulex. Both have circa 31mm (30.7?) threads for the lens cells.

My 120mm to 135mm f/6.8 German lenses (Dagors and others) are in Compound and Rulex shutters with circa 27.8mm threads for both lens elements.

Rulex shutters are of excellent quality equal to dial-set Compurs in their performance. But Compounds are also great, and I don't feel any need to replace them. The old ones just need some CLA.
ridax
17-Nov-2022, 11:11
I've just found a nearly same sized Compur among my lenses. It's lens cell threads are approximately 27.3mm. The lens that comes with it can be mounted into a Compound or a Rulex - the threads are loose but but when screwed all the way in, the lens cells get fixed OK. But my Compound-mounted lenses do not screw into the Compur.
baachitraka
17-Nov-2022, 13:14
I think I will send two of these shutter units to CLA.