[LargeFormat] Carl Zeiss Dagor 180mm f9

[Richard Knoppow]

----- Original Message ----- 
From: "Timothy Atherton" <tim at KairosPhoto.com>
To: "f32 Large Format Photography Mail List" 
<largeformat at f32.net>
Sent: Friday, September 30, 2005 6:08 PM
Subject: [LargeFormat] Carl Zeiss Dagor 180mm f9


> Does anyone have any information on this lens at all?
>
> thanks
>
> tim a
  More...
  I have a partial copy of a 1936 Zeiss catalogue. It lists 
the f/9 Dagor in the following focal lengths: 7.5cm, 10cm, 
12.5cm, 15cm, 18cm, 21cm, 24cm
  Image circle for the 18cm is given as 15-1/2 inches at 
"small stops". There is a note that the lens should be 
stopped down to f/18 or less for good definition at the 
edges. Diameter for slip over attachments is 42mm. The lens 
was available in a barrel or in a Compound or Compur 
shutter.. Because of its symmetry the Dagor(and W.A.Dagor) 
has very little geometric distortion.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk at ix.netcom.com