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Smitty
16-Nov-2015, 22:37
Anyone know if a Dagor 8.25 inch will cover 8x10?
Thanks, Steve

Mark Sawyer
17-Nov-2015, 00:17
Yes, but with not a lot left for movements and the older ones will be a little soft in the corners. If it's late enough to be coated, it will be better there.

Smitty
17-Nov-2015, 00:51
It I think is a gold ring, brass mount on front element. American Optical, definitely coated.

Dan Fromm
17-Nov-2015, 07:33
It I think is a gold ring, brass mount on front element. American Optical, definitely coated. Not this Internet canard again. There was never a connection between Goerz American Optical Company of various locations in and around New York City and American Optical Company of Springfield, MA.

Andrew Plume
17-Nov-2015, 07:51
if you can find the Goerz Berlin f6.8 version, this will definitely cover 8 x 10 and without any vignetting

andrew

karl french
17-Nov-2015, 08:11
Pretty much any 8 1/4 inch Dagor will cover 8x10 with some room for movements. Polished brass does not equal a "Golden" Dagor. Real "Gold Ring" Dagors had anodized front trim rings and generally start around serial number 790,XXX. I was previously using a 8 1/4 Dagor as a moderate wide angle on 8x10, but found the 21cm Schneider Angulon provided better coverage and produced a similar feel to the image.

David Lindquist
17-Nov-2015, 10:58
Not this Internet canard again. There was never a connection between Goerz American Optical Company of various locations in and around New York City and American Optical Company of Springfield, MA.

Dan I'm afraid this is never going to go away. In addition to being stated from time to time on various internet photography forums, this error was also asserted in View Camera magazine in a series on the history of lens design, in particular the January-February 1996 issue.

I sometimes wonder if C.P. Goerz American Optical Co. changed their name to Goerz Optical Co. to get away from this.

BTW I have a 21 cm Zeiss Goerz Dagor (F/6.8), circa late 1920's-early 1930's that covered 8 X 10 O.K. I did not enlarge my 8 x 10 negatives.

David

Mark Sawyer
17-Nov-2015, 11:19
Pretty much any 8 1/4 inch Dagor will cover 8x10 with some room for movements. Polished brass does not equal a "Golden" Dagor. Real "Gold Ring" Dagors had anodized front trim rings and generally start around serial number 790,XXX. I was previously using a 8 1/4 Dagor as a moderate wide angle on 8x10, but found the 21cm Schneider Angulon provided better coverage and produced a similar feel to the image.

There's still some question about what constitutes an official "Golden Dagor". All the coated Goerz Dagors had similar excellent performance. The Angulons were either Dagor copies or so close many knowledgeable people still consider them Dagors.

Smitty
17-Nov-2015, 19:23
The front trim ring is gold anodized not polished brass, ser# begins with 78****. CP Goerz AM Optical Co is on the lens mount f 6.8

karl french
17-Nov-2015, 19:34
That sounds like the real deal.

Smitty
17-Nov-2015, 19:37
Mounted in a Rapax shutter, came on an early 50's 5x7 Deardorff...

Luis-F-S
17-Nov-2015, 19:37
Pretty much any 8 1/4 inch Dagor will cover 8x10 with some room for movements. Polished brass does not equal a "Golden" Dagor. Real "Gold Ring" Dagors had anodized front trim rings and generally start around serial number 790,XXX.

The lowest non Golden coated Dagor I have is a 12" Ser #77617x. The lowest # Golden Dagor I have is an 8 1/4" Ser # 784195 with an anodized aluminum front barrel. The Golden Dagors thus start a bit lower than 79xxxx and probably in the low 78x xxx's. I also have a non-coated 8 1/4" Dagor, Ser # 770769 in Acme #3 whose rear element sticks out about 3/8" less from the shutter than the Golden one. I point out to show that the design changed somewhat over the years and thus you would expect somewhat different coverages. I would think this older lens would have less mechanical vignetting and be better for 8x10. L

142398142399142400

Smitty
17-Nov-2015, 19:51
Thanks for the pictures, much appreciated. Mine looks like the one in Copal, mine starts 783***. It was being used on a 5x7 camera with 4x5 back. Was thinking it be nice if I could possibly also use it on my 8x10.
S

karl french
17-Nov-2015, 19:56
Dagors in Rapax shutters are very nice. Much more compact than the Ilex No.3. I have a 6.5" f8 in an Ilex 3, but wish it was in a Rapax 3. My old 8 1/4" (767508) was in an Ilex 3. The only Gold Rim Dagor I have (15cm) is in the 815,XXX range. Very close to the 12" Gold Dot (816,XXX) I have.

Smitty
17-Nov-2015, 20:06
I didn't know much about Rapax shutters but seems to work fine, you are right it is a compact lens setup.
I had a pretty nice 12" Gold Dot in Ilex 4 back in the 90's, let that one go, at the time was kind of fond a 14" Red Dot Artar.

Luis-F-S
17-Nov-2015, 20:08
To get a wider Dagor to use on 8x10, you'd have to go to the 6 1/2 WA. Great lens! L

142402

Jim Galli
18-Nov-2015, 14:59
Thanks for the pictures, much appreciated. Mine looks like the one in Copal, mine starts 783***. It was being used on a 5x7 camera with 4x5 back. Was thinking it be nice if I could possibly also use it on my 8x10.
S

I can't stop myself from asking why you would wade through 2 pages of answers here instead of just putting it on the camera and seeing for yourself?

Dan Fromm
18-Nov-2015, 15:05
Jimbo, why do you ask questions to which you already know the answer?

Cheers,

Dan

Luis-F-S
18-Nov-2015, 18:35
Jimbo, why do you ask questions to which you already know the answer?

Cheers,

Dan

+1

goamules
18-Nov-2015, 19:45
Experimentation is for the ambitious individualists. We'll have none of that here on the Internet...

David A. Goldfarb
18-Nov-2015, 23:43
Some people ask when they're thinking of purchasing a lens and don't have it in hand, but if you've got the lens, it's obviously best to check, since it could have been remounted, which can change the coverage (e.g., if the internal baffling or cell spacing is different), or coverage can be different in different eras. I have a gold dot version, and it covers 8x10" no problem.