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View Full Version : Ektar 203 f7.7 hole size for flash supermatic shutter?



Nathan67
18-Sep-2008, 05:02
Hi.
I have an Ektar 203mm f7.7 in a flash supermatic shutter dating from 1958. I really like the look I get from this lens and would like to be able to use it on my shen hao (right now it is on a crown graphic lens board) as portrait shots with the crown in the studio is
a non elegant process.

Does anybody know if this will fit straight into a copal 0 or 1 lensboard? or do I need to get all DIY... (hopefully not coz I have 10 thumbs...)

I dont really want to remove it from the graphic board just to try if I dont have to, hence the post.. I have searched around and cant find an answer..

Many thanks,

Nathan

Skorzen
18-Sep-2008, 05:39
Mine fits in what I believe is a Copal 0 board (don't quote me on that though), measure it and see what it is closest too?

GPS
18-Sep-2008, 06:39
copal 0 is fine.

Nathan67
18-Sep-2008, 06:39
great, thanks!

Ivan J. Eberle
18-Sep-2008, 08:17
My impression is that the Supermatic mounted ones will NOT thread into a modern Copal, but that Compur-mounted/Prontor-mounted/ Euro-version ones with "Mount 370"/ will be a direct fit.

Skorzen
18-Sep-2008, 09:09
My supermatic mounted one does fit, but I think it is a little tighter than a Copal 0 shutter would be in there. My experience has been that the holes tend to have a little play.

venchka
18-Sep-2008, 13:47
Somewhere on the internet I remember a 1 1/2" hole requirement. I have no clue if that's a Copal 0 hole diameter. Measure the shutter O.D. and tell us what it is. I'm sure somebody here knows the I.D. of the hole in a board for a Copal ) shutter. Then we'll all know. I hope y'all are right. I have two boards with Coapl 0 holes. I already have 1 Supermatic shutter for the 127mm Ektar, and look forward to owning the 203mm Ektar one day. It would be nice if I already have the board for it.

GPS
18-Sep-2008, 14:22
great, thanks!

As said, it sits nicely in my copal 1 lens board. Live well.

Ivan J. Eberle
18-Sep-2008, 17:38
Oops, sorry, didn't read closely enough before my earlier post to see that the OP was referring only to the opening in the lens board. (For some reason, I'd thought he was trying to replace the shutter itself with a Copal.)

Nathan67
19-Sep-2008, 00:51
Thanks everybody for the help :)
Just to clarify, it was the hole size in the lensboard that was of interest, I have a lens tool that fits the other lenses I have, but not the retaining ring on the ektar, so before getting a tool that fits, and a new lensboard I did not want to have to remove the ektar from its present board before I knew the size of the board I needed.
Thanks again :)

GPS
19-Sep-2008, 01:36
As said, it sits nicely in my copal 1 lens board. Live well.

Heck! Should be, of course, "in my copal 0 lens board"..!

venchka
19-Sep-2008, 05:17
dON'T KNOW IF THIS HELPS, BUT..........

I measured the hole in my Copal 0 lens board. 35mm or 1 3/8". I measured the threads on my 1953 Supermatic (X) shutter which holds my 127mm Ektar lens cells. 1 5/16" or less than the size of the hole in the lensboard. Like you, I need a tool to remove the retaining ring so I can use the 127mm Ektar and a 160+ R.R. (the cells fit perfectly in the Supermatic (X) shutter) on my Zone VI camera. Good luck!

Brian Wallen
20-Sep-2008, 19:30
The shutter originally used by Kodak for the 203mm Ektar (as well as the 127mm Ektar and the 100mm Ektar on the Medalist) was a #1 Supermatic or Flash Supermatic. These mounted in a 1.5 inch (38.5mm) hole, though the Medalist mount was much more complicated. Later Ektars were mounted in Graphic(R) Synchro Compurs, but I have not found Kodak documentation for these mountings.

There is complete information about shutter mounting for Ektars from about 1940-1960 in the pages I have reproduced from the Kodak Data Books/Handbooks:
http://www.prairienet.org/b-wallen/BN_Photo/KodakEktarsIndex.htm

GPS
21-Sep-2008, 05:44
The shutter originally used by Kodak for the 203mm Ektar (as well as the 127mm Ektar and the 100mm Ektar on the Medalist) was a #1 Supermatic or Flash Supermatic. These mounted in a 1.5 inch (38.5mm) hole,
...
There is complete information about shutter mounting for Ektars from about 1940-1960 in the pages I have reproduced from the Kodak Data Books/Handbooks:
http://www.prairienet.org/b-wallen/BN_Photo/KodakEktarsIndex.htm

As said and said again, my Ektar 203mm in its original Flash Supermatic shutter mounts in a Copal 0 lens board... with its 35mm hole! So much for the complete information...

Brian Wallen
1-Oct-2008, 01:06
Whether a 203mm (Supermatic/Flash Supermatic 2) will fit in a #0 lens board depends on whether you are mounting it as Kodak originally recommended, with the shoulder of the retaining ring turned in toward the back of the lens board or whether you are mounting it with the flat side of the ring facing the lens board, as Graflex did for the Pacemaker Graphics. The 203mm Ektar is a very old design that originated in the 1930s and has been mounted in Supermatics, Flash Supermatics and Compurs as well as mounted on several different cameras. Mountings and retaining rings changed over a period of more than 30 years. Lens boards have changed and are still changing. Not all lens boards advertised as #0 have holes that are exactly the same size, particularly aftermarket boards produced in small lots. For more information on mounting Kodak lenses on view cameras:
http://www.skgrimes.com/lensmount/index.htm
http://www.prairienet.org/b-wallen/BN_Photo/LFN/LensMounting.htm
http://www.prairienet.org/b-wallen/BN_Photo/MountingEktarsVu.htm

Kodak, when they manufactured consumer and professional lenses, had very good quality control and this extended to their documentation. They occasionally offered variations on lenses and shutters that did not appear in the Kodak Handbooks and Data Books. Part of the fun of developing a Kodak site is finding the Kodak Ektar Anomalies:
http://www.prairienet.org/b-wallen/BN_Photo/KodakEktarAnomolies1.htm

GPS
1-Oct-2008, 04:07
Whether a 203mm (Supermatic/Flash Supermatic 2) will fit in a #0 lens board depends on whether you are mounting it as Kodak originally recommended, with the shoulder of the retaining ring turned in toward the back of the lens board or whether you are mounting it with the flat side of the ring facing the lens board, as Graflex did for the Pacemaker Graphics.
.....


Just not to make things more and more complicated with "anomalies" - my Ektar 203mm with its original retaining ring can be mounted on a #0 lens board in one way only -the flat side of the ring facing the lens board. The other way - with the shoulder facing the board is for mounting it to a #1 hole lens board. The shoulder has a 37mm diameter, thick 2mm.

Jeff Keller
1-Oct-2008, 22:11
Nice web site. Thanks for posting the link.
Jeff Keller



There is complete information about shutter mounting for Ektars from about 1940-1960 in the pages I have reproduced from the Kodak Data Books/Handbooks:
http://www.prairienet.org/b-wallen/BN_Photo/KodakEktarsIndex.htm

venchka
25-Nov-2008, 07:44
There is no joy in Mudville. My Kodak Supermatic (X) shutter returned from Carol Miller yesterday. I was eager to mount it on a Zone VI lens board with what is supposed to be a hole for a Copal #0 shutter. Close. No cigar. The threads on the shutter are a silly half mm too big. Or the hole is a silly half mm too small. I'm going to try to enlarge the hole a bit with some sandpaper. Stay tuned.

venchka
28-Nov-2008, 12:44
I wrapped some sandpaper around the handle of a wooden spoon. A couple trips around the hole and Bob's your uncle! The 1953 Supermatic (X) shutter slipped right in. Now I can use my 1953 127mm Extar and my 1913 150 something mm Bausch & Lomb Rapid Rectilinear on the Zone VI. One shutter, 4 cells, two working lenses. The infinite adaptability of low tech view cameras continues to amaze me.

BTW, the B&L R.R. has GOBS! (proper technical term, right?) of coverage for 4x5.

I am really having fun again.