Archived posting to the Leica Users Group, 1997/06/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Donal Philby wrote: > > LUGnuts: > > Saw this on the usually dormant AOL leica forum. And he is or isn't > related, I can't remember. > > Subj: Re:Leica durability > Date: 97-06-20 13:48:27 EDT > From: OBarnack > > With all this talk about Leica durablity, you may be interested in some > actual data. As part of a consulting project we recently reviewed the > audio-visual and photo lab. records of a major research center of the > State University of New York. This facility operates a "lending library" > of photo equipment and permits scientists to "check out" a system for > the duration of a project. Film is also supplied and records are kept on > the number of rolls run through each camera. At the end of the project > the equipment is returned, checked out, and readied for the next user. > The records cover the period from 1950 to 1996. The database excluded > cameras which were damaged by non-photographic use i.e. falling on > concrete, submergence, etc. > > The two longest durability non-SLR 35mm cameras are, in order, ROBOT and > LEICA. One Robot has had over 2,000,000 frames run through it since the > 60's. A Leica M3 DS made almost 450,000 exposures since its purchase > date in 1954. Both of these figures should be taken with a grain of > salt. There are very few competitors in this class of cameras. The Robot > was used in data recording with exposures taken automatically every few > minutes, the Leica as an ID camera in a high security installation. > Still, the mechanical longevity of both cameras is several times the > norm for professional use. It is likely that an ordinary professional > photographer would drop or lose the camera, or would replace it due to > obsolescence before it would wear out. Either would last an amateur > several photographic lifetimes. > > In the SLR category, the durability champ was an Olympus OM-1 purchased > in 1974 and still in use. It has made nearly 260,000 exposures during > that period in the course of documenting ongoing urban renewal projects. > All the Olympus SLRs in the inventory required little in the way of > repairs or maintenance. Close behind were Canon and Nikon cameras. What > is surprising is that the Olympus was criticized for its apparently > delicate construction when it was introduced. Obviously the light weight > and low inertia of the moving parts contribute as much to longevity as > the more massive construction of its competitors. Autoexposure > capability did not influence the durability much, although those cameras > which controlled exposure by varying shutter speed were significantly > more reliable than those that did so by varying lens opening. Apparently > the smaller the number of moving parts, the less there was to break. > Autofocus, on the other hand, greatly increased the liklihood of repair, > halving the mean time to failure. > > The longest durability roll film camera was a Kodak Medalist II, a WW2 > era design by Kodak and widely adopted as a Navy combat camera in the > 40s and 50s. This camera, taking 6x9 cm pictures on 620 film, was > acquired by SUNY as part of a Navy grant in 1950 was in continuous use > in the PR department for 45 years until film became unobtainable. No one > knows how many exposures were made before the camera was given to the > University. There is no record of repair during that period. - Oskar Hi all; I thought that I had seen evidence somewhere that an original Leicaflex Standard MK1 had recorded over a million shots. After a little research, I found the article in the LHSA pub., "Viewfinder" Volume 28 Number 2 (Second Quarter, 1995) reference page 17. This particular camera's serial # is 1123505 was used by a South African photographer named Sonny Foster. Indeed, this camera has seen over 50,000 rolls of film through it. This camera could possibly have made 2 million exposures. An interesting article on the Leicaflex cameras. Dave Stedman