Commercial Astragon 250mm f6.3??

[Wayne R. Scott]

Ok,

So I just bought a Commercial Astragon 250mm f6.3 in a Copal No.3 shutter with a 4x5 B&J Camera as a rear lens cap. Any one use this lens? Is this the same as a Congo? Tessar formula lens?

My original intention was to mount my 16 inch Red Dot Artar into the Copal No. 3 shutter and send the Astragon onto greener pastures. I have a Kodak Commercial Ektar 10" and a Kodak Ektar 190mm, both of these are in Ilex No. 4 shutters. It is my understanding that the Red Dot can be mounted into either the Ilex No. 4 or the Copal No. 3. Is the best plan to use the Copal shutter for the Red Dot instead of the Ilex No. 4? Should I use one of the Ilex shutters and send the Ektar onto greener pastures?

Wayne

[BradS]

Hmmm,
Well, I cannot help you with your shutter dilema but, I do think it would be really cool of you to offer to sell the B&J "rear lens cap" to the second highest bidder for a nice price....:):):) I'm pretty sure he was only interested in the camera.

[Wayne R. Scott]

Hmmm,
Well, I cannot help you with your shutter dilema but, I do think it would be really cool of you to offer to sell the B&J "rear lens cap" to the second highest bidder for a nice price....:):):) I'm pretty sure he was only interested in the camera.

Were you the second bidder Brad? Send me a PM if so.

Wayne

[BradS]

Hi Wayne,

Yes...that's me - bks62464. I've sent you a PM.

Brad.

[Ernest Purdum]

My belief is that the "Commercial Astragon" is one of the several house-branded lenses actually made by Yamasaki, the "Congo" maker. And yes, it should be a Tessar type.

Having your Red Dot re-mounted will be expensive in either shutter. If you care about resale value, the Copal would be more likely to justify the expense.

[Carsten Wolff]

doesn't an Ilex have a rounder aperture though? :)