Re: ULF lens wanted

From: Richard Knoppow ^lt;[email protected]>
Date: 02/20/05-11:00:54 PM Z
Message-id: <002c01c517d2$556b3ef0$77f55142@VALUED20606295>

----- Original Message -----
From: "SteveS" <>
To: <>
Sent: Sunday, February 20, 2005 12:57 AM
Subject: Re: ULF lens wanted

> ----- Original Message -----
> From: "Judy Seigel" <>
> Subject: ULF lens wanted
> -snip-
>>He's looking for Gertz Dagor (or one or the other if they
>>hadn't joined yet), or I think he said Helior, or some
>>classic like that to use on a 20x24 inch camera. Judy
> Did your friend find his lens? Dagor, by the way, is an
> anogram for Double Anastagmatic [by] Goerz. It's a
> design. While the lenses were made by Goerz, after time,
> the design was remanufactured at the request [read
> financed by] Doug Bush for his big camera. The camera
> failed because of the weight. In my opinion, the heavier
> the large camera, the better because they're steady; but
> there's a limit to its weight -- in a practical sense --
> due to the size and shake from breezes or even shutter
> release.
> Steve Shapiro
   I think that rigidity is more important than weight. In
fact, a light but rigid structure will be stronger and less
vibration prone than a heavy one. The sensitivity of the
camera and stand or tripod in combination to vibration is a
bit complex. Wind generated vibration adds even another

Richard Knoppow
Los Angeles, CA, USA
Received on Mon Feb 21 12:24:53 2005

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