Congratulations and welcome to a new way of thinking about images...
Stan
On Jul 8, 2004, at 4:32 AM, Anders Hultman wrote:
This M lens, however, kinda does work, but not really as expected:
Cosinon-T 135/3.5
Metering with the green button works, but only at full aperture. The
lens don't ever stop down, not at metering nor exposure.
alex wetmore:
Look to see if there is anything unusual on the mount around where the
* contact goes:
Jostein:
Sometimes the aperture lever can be slightly bent so that the camera
doesn't
catch it. In my experience, the newer cameras are more prone to this
than older
cameras. Compare the distance between the aperture lever and the
bayonet flange
with another lens. It's safe to bend it back into position with your
fingers.
After examinination I found out that the stop down mechanism inside
the lens must be broken. It actually never stops down, even when
disconnected from the camera. The stop-down indicator follows the
aperture ring, but the aperture blades doesn't move.
This means that my ME:s and Program A will overexpose with this lens
set to anything else than full aperture, since they read the stop-down
indicator and increase the shutter time accordingly, but the *istD
that doesn't read the stop-down indicator will do a correct exposure.
Funny.
And funny that I didn't notice earlier. On the rare occasions that I
have used this lens I have to had used it at full aperture. Or maybe I
have had some ruined shots that I didn't connect to the lens being
faulty. I acquired it (plus the Tamron 200/3.5) by acting as courier
between two friends in different cities, but when I was to deliver
them, it turned out that the reciever had another camera brand and
couldn't use them, so I got to keep them. They have mostly been
sitting in a drawer since then, as I alreday had a favourite zoom that
covered that range.
anders
-------------------------
http://anders.hultman.nu/
med dagens bild och allt!
