(meteorobs) Off-topic lens data wanted.

Larry ycsentinel at att.net
Tue Dec 8 23:08:17 EST 2009


Ed,

Some caution is suggested here. If this is a second hand item similar to 
what I messed with before, which was a 6-7 inch American made WWII Aerial 
Camera lens & cell.... I found that those lenses needed a separate screw-on 
cell containing a CORRECTOR lens in order to compensate for serious field 
curvature and to give a flat picture of ground terrain.

Finding both of the matching cells could be a problem. I was never able to 
find the vintage matching cell and later discarded it and the idea of making 
a wide field film camera.

Larry
YCSentinel

----- Original Message ----- 
From: "Ed Majden" <epmajden at shaw.ca>
To: "RASCals Discussion List" <rascals at lists.rasc.ca>
Cc: "RASC Victoria mailing list" <rascvic at victoria.rasc.ca>; "Global Meteor 
Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/12/08 17:01
Subject: (meteorobs) Off-topic lens data wanted.


> Rascals:
> Anyone know anything about this lens:  Super Farron 76 mm f / 0.87
> of the Farrand Optical Corp. i.e. format, back focus, image quality,
> etc.  It was used on military aero cameras.
> I checked with "google" but there is little info on this lens.
> Thanks:
> Ed
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