Beginning of my second of nine days in Prague and I dropped my m8.
It fell on the vented corner of he 24mm's lens hood.
The 24mm looks unscathed, but its focusing helical is completely jammed. It is set to a position so that it looks it might be ok if I hyperfocal at f/5.6 or so.
At first the camera, which also looks completely unscathed, it now unable to meter correctly or to work the shutter correctly at speeds faster then 1/30.
Taking off the lens, I can see that the shutter leaf with the white stripe is invisible, instead I see shutter blades with what appear to be a couple of pivot points or rivets. On faster speeds, the shot appears either completely dark or well exposed for a portion of the image, with the remainder masked. The slower the shutter speed, the more of the sensor is exposed.
Looks like for the remainder of the trip I will use the Mark I eyeball meter and a 50mm summarit, since it is the only lens I have that will work with the 3 stop ND I am carrying so that I can get the shutter to 1/30 at f/16 in the sun.
Note that I would have pulled out my backup body, but it hs been in New Jersey for the last seven weeks for a rangefinder tuning.
<rant>
Reliability calculations include all sorts of factors, including partial failures, whether there are backups available, and how resistant any component is to abuse. We used to use a figure of merit called A0 which stood for availability. That metric is the normalized portion of time a system was available factoring the mean time to failure and the mean time to repair including any parallel or serial failure components.
So far, my only problem with Leica is that the MTTR is too long (it will be eight or more weeks for a simple rangefinder tune-up compared to six calendar days including shipping with Nikon for a repair of similiar magnitude. I am scheduled to go on the MOAB trip, but unless I get a couple of bodies back in time I will probably be shooting Nikon
</rant>
-bob
It fell on the vented corner of he 24mm's lens hood.
The 24mm looks unscathed, but its focusing helical is completely jammed. It is set to a position so that it looks it might be ok if I hyperfocal at f/5.6 or so.
At first the camera, which also looks completely unscathed, it now unable to meter correctly or to work the shutter correctly at speeds faster then 1/30.
Taking off the lens, I can see that the shutter leaf with the white stripe is invisible, instead I see shutter blades with what appear to be a couple of pivot points or rivets. On faster speeds, the shot appears either completely dark or well exposed for a portion of the image, with the remainder masked. The slower the shutter speed, the more of the sensor is exposed.
Looks like for the remainder of the trip I will use the Mark I eyeball meter and a 50mm summarit, since it is the only lens I have that will work with the 3 stop ND I am carrying so that I can get the shutter to 1/30 at f/16 in the sun.
Note that I would have pulled out my backup body, but it hs been in New Jersey for the last seven weeks for a rangefinder tuning.
<rant>
Reliability calculations include all sorts of factors, including partial failures, whether there are backups available, and how resistant any component is to abuse. We used to use a figure of merit called A0 which stood for availability. That metric is the normalized portion of time a system was available factoring the mean time to failure and the mean time to repair including any parallel or serial failure components.
So far, my only problem with Leica is that the MTTR is too long (it will be eight or more weeks for a simple rangefinder tune-up compared to six calendar days including shipping with Nikon for a repair of similiar magnitude. I am scheduled to go on the MOAB trip, but unless I get a couple of bodies back in time I will probably be shooting Nikon
</rant>
-bob