What size flange for Kodak No. 2 Anastigmat 6 3/4 inch f4.5 lens?

[keithostertag]

I've got an old Kodak No. 2 Anastigmat 6 3/4 inch f4.5 lens in a Compur shutter I'd like to play with. The lens is also marked EY32-339. The Compur shutter is marked Made in Germany, I can't read the serial number.

I am not sure what size flange it uses or where to find one.

Measuring with a caliper shows the outside of the threads measure about 44mm.

I've seen charts which say a Compur 1 is the same as a Copal 1 at about 41.6mm, the next size up is the Compur 2 at about 52.5mm.

Am I measuring wrong?

Let me know if you have a flange to fit.

Thanks,
Keith

 

[shutterfinger]

http://www.skgrimes.com/products/mounting-flanges/metric-stock-flanges
That is a very old Dial Set Compur. The link shows it to be 43.95mm .9mm thread pitch. Good luck finding one on ebay as those jisters rarely know how to measure lens mounts.
Do not cock the shutter when the mode selector is set to B ot T, only cock the shutter when set to I for instantaneous.
Copal/Compur numbers do not apply to this vintage shutter.

 

[keithostertag]

Thank you!

I don't remember where I picked this up (years ago), and I doubt that I ever tripped the shutter or that the shutter even works... I'm mostly just curious to see what kind of image it will produce (certainly "soft" since the lenses are in poor condition).

 

[Jim Jones]

The 1943 Kodak Reference Library lists a No. 32 as a f4.5 6 3/8", not 6 3/4". The shutter is a No. 3 Ilex with the lens board mounting hole 2" or 50.5mm. The 1948 Kodak Reference Library has dropped names such as No. 32, and renamed the better lenses as Ektar. There is none listed in this focal length and speed. The number EY32-339 sounds like possibly a 1949 date. The scarcity of fine photo equipment in those early post-war years may have lead to some lenses outside the normal naming and shutter ranges. Also, lenses were sometimes remounted in whatever shutter one could find. I hope this limited information doesn't add to the confusion.

 

[Dan Fromm]

Jim, look at the OP's picture.

 

[Ian Grant]

The old style (there was a url link here which no longer exists) were a different size to the later (there was a url link here which no longer exists) and used a slightly coarser thread for the retaining rings.

You have a Dial set Compur 2 with a No 4 Tube. If you make yourself a wooden lens board you can carefully screw it into a slightly undersized hole. I've done this a few times once with a Dial set Compur but also with brass lenses when I've no flange/retaining ring.

Ian

 

[keithostertag]

Thanks Ian, I was wondering about making a wooden board with a slightly undersized hole...

 

[BrianShaw]

Thank you!

I don't remember where I picked this up (years ago), and I doubt that I ever tripped the shutter or that the shutter even works... I'm mostly just curious to see what kind of image it will produce (certainly "soft" since the lenses are in poor condition).

You may be surprised about the imaging capability. I used several Kodak lenses of the era and they are surprisingly sharp.

 

[Ian Grant]

You may be surprised about the imaging capability. I used several Kodak lenses of the era and they are surprisingly sharp.

I'd agree, I use quite a few lenses older and of similar vintage.

My guess is this is a European made Kodak lens, Kodak had Anastigmats were made by CZJ, TTH (Cooke) and later Schneider, and to a variety of designs, Yours is Tessar. No-one has really looked in depth at the vast differences between Eastman Kodak and Kodak Ltd and the quirte significant differences in lenses, thir sourcing and manufacture, shutters etc.

It was a two way trade Eastman Kodak export some cameras/lenses to Europe. Eastman Kodak Ltd were the Importers of some UK lenses TTH (Cooke) for instance into the US, while Kodak Ltd (UK) distributed Ross and other UK made lenses in Australia and New Zealand.

Ian