Originally posted by Ira Is this your first M42
No, but my other m42 was just a junk lens I picked up, haven't used it in an age.
Quote: do you have it set for "Use Aperture Ring--Permitted"?
yes
Quote: When you power up the camera, it should give you the menu to select the focal lens to properly set Shake Reduction. If it doesn't, something in the base of the camera is improperly shorting out the body contacts and making it think that lens is something it isn't.
It doesn't give me this. It usually does when I mount MF K mount lenses, but not for this one.
Quote: Also, does your menu show SR crossed out
Yes
Quote: and if so, can't you simply turn it on?
switch is in on position already.
Quote: Putting catch focus/trap focus aside, put some plain scotch tape on the base of the lens and see what happens. You SHOULD now get the FL menu for SR when you power up.
Did this, no change. Also as a test tried detaching lens, leaving just adapter mounted, holding lens 1mm in front (ie so no contact at all). Still no antishake.
Quote: For catch focus/trap focus to work properly, you have to use aluminum tape on the base of the lens to short ALL of the contacts on the body.
Presumably aluminium kitchen foil would work. Will try once I'm at home tonight (in the office now!).
Quote: Also, AF has nothing to do with trap focus, so that SHOULDN'T be on for a manual lens anyway.
The AF/MF switch on the camera usually turns trap focusing on/off with an MF K-mount lens - but isn't doing so with this m42 lens. Appologies for being unclear. Perhaps this is normal though.
Quote: Auto and P won't work with a manual lens. Only M and Av, and for M, you have to use the Green Button.
Never found them "not working" with manual K mounts, presume for M42 it's different though hence underexposure. I don't seem to have a "green button" on this camera body though.
EDIT
Quote: If it doesn't, something in the base of the camera is improperly shorting out the body contacts and making it think that lens is something it isn't.
Quote: For catch focus/trap focus to work properly, you have to use aluminum tape on the base of the lens to short ALL of the contacts on the body.
I suppose my question then, is how to distinguish between improper and proper shorting out of contacts...
Last edited by MrA; 10-28-2010 at 06:26 AM.