[LargeFormat] 7" Gundlach Radar Anastigmat Extreme W.A. 8x10 f16
Richard Knoppow
dickburk at ix.netcom.com
Tue Aug 23 22:41:00 EDT 2005
----- Original Message -----
From: "Timothy Atherton" <tim at KairosPhoto.com>
To: "f32 Large Format Photography Mail List"
<largeformat at f32.net>
Sent: Tuesday, August 23, 2005 6:44 PM
Subject: [LargeFormat] 7" Gundlach Radar Anastigmat Extreme
W.A. 8x10 f16
> anyone know anything about this lens - seems to cover 8x10
> nicely with room
> for some movements
>
Neither my old Gundlach-Manhattan catalogue of the
_Handbook of Photography_ Henney and Duddley shows the
construction of this lens but it is undoubtedly a copy of
the Zeiss Protar wide angle lens. The catalogue gives the
coverage as 90degrees but no information.
If the focal length is marked 7 inches it is a slightly
different lens than the ones listed in the 1927 catalogue,
where the closest is 6-1/4 inches (for 8x10).
You can get a very approximate date of the lens by the
city listed on the front ring. The original Gundlach company
was in Rochester. It was resurected in the mid or late 1930s
in Freeport N.Y., near Rochester.
Ernst Gundlach, the founder of this and several other
companies, was a specialist in modifying existing lenses in
order to avoid patent infringment. It would be interesting
to know what the construction of this lens is. Shine a
flashlight at the cells and count the reflections. Glass-air
surfaces are very bright (even when coated) and cemented
surfaces are quite dim. A W.A. Protar should have two bright
and one dim reflection in each cell.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk at ix.netcom.com
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