Archived posting to the Leica Users Group, 2007/12/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]To get the juices flowing, I found this:
http://stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier
=AD0916694
Accession Number : AD0916694
Title : Minicamera Lens Evaluation.
Descriptive Note : Technical rept. Apr 71-Mar 73,
Corporate Author : AIR FORCE AVIONICS LAB WRIGHT-PATTERSON AFB OH
Personal Author(s) : Humphreys, Edward N.
Report Date : NOV 1973
Pagination or Media Count : 25
Abstract : The purpose of this study was to measure the performance of 35mm
format camera lenses for possible use on a high resolution miniature
photographic reconnaissance camera. Forty-three lenses were selected from
the various manufacturers. Selected lenses had focal lengths ranging from
35mm to 75mm, and the relative apertures ranging from f/0.95 to f/2.8. Each
lens was tested on Eastman Kodak Type 3414 film, at maximum relative
aperture.
Test results showed that the Leitz-Canada Summicron (35mm, f/2.0) had the
best AWAR (117 1p/mm) for the 35mm focal length lenses.
In the 38 to 49mm focal length range, the best lens was the Olympus F. Zuiko
(38mm, f/1.8) with an AWAR of 165 1p/mm.
In the 50 to 60mm focal length range, the best lens was the Leitz-Wetzlar
Summicron (50mm, f/2.0) with an AWAR of 135 1p/mm.
In the 60 to 75mm focal length range, the best lens was the Leitz-Canada
Elcan (66mm, f/2.0) with an AWAR of 167 1p/mm. (Author)
Descriptors : *CAMERA LENSES, RECONNAISSANCE CAMERAS, MINIATURIZATION,
AERIAL RECONNAISSANCE, RESOLUTION, APERTURES, SELECTION, TEST METHODS,
PHOTOGRAPHIC FILM, PERFORMANCE(ENGINEERING), TEST EQUIPMENT.
Subject Categories : PHOTOGRAPHY
MILITARY INTELLIGENCE
Distribution Statement : APPROVED FOR PUBLIC RELEASE
-----Original Message-----
From: idcc-bounces@lists.kjsl.com [mailto:idcc-bounces@lists.kjsl.com] On
Behalf Of Vick Ko
Sent: Saturday, December 01, 2007 11:15 AM
To: 'Leica Users Group'; 'Internet Directory of Camera Collectors'
Subject: [IDCC] Anyone here own or shoot with a 66mm f2 Elcan?
Anyone here own or shoot with a 66mm f2 Elcan?
If yes, mind if I ask about performance and imaging qualities of the lens?
Is there another lens that it compares well to?
What did you do to deal with the lack of 66mm framelines in your M (I am
assuming you used an M, and also that it coupled).
Mind if I ask what current market value is?
regards
Vick
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