A few days ago I got a vemar 135 f2.8 lens. At the camera store it was marked as an m42 lens. I received the pentax OEM k to m42 adapter and the lens will not fit. The threading is wider then the M42. The only other markings by the mount is "MA." Any ideas on what it could be?
Miranda 44mm screw mount?
It seems my "cousins" in Japan "screwed" that one! ;-)
Sorry for the bad joke! :-)
There is a silver detachable mount where the lens attaches to the body. I wonder if those rings can be gotten on their own.
This link shows it more in detail
The lens may be a T-mount lens. IIRC, the T [aka T2] mount is the same diameter as the M42, but the thread pitch is different [I think it's 1 mm for the M42, and 0.75 mm for the T2]
Originally Posted by zackesch
You may already have a T2 to K mount adapter if you have other pre-set or manual diaphragm lenses, slide copiers, etc.
The diameter of the thread is larger then what it is on the m42 adapter.
Originally Posted by ruby.monkey
See here: http://rick_oleson.tripod.com/index-99.html
This lens will be heading back. In place of it, I ordered this lens http://www.ebay.com/itm/190879854100...84.m1423.l2649
This is my first time using a m42 lens so I was wondering is how will that pin be activated with pentax cameras. The adapter is the one from pentax.
The lens will be fully manual on the m42 to K mount adapter, with stop down metering. Be sure to move the 'auto/manual' switch on the lens to 'manual' so the lens will stop down when you move the aperture ring.
Side note; the Vemar might not be a Miranda mount. I've seen some Vemar pre-set lenses that look like a T mount but had their own adapter system thread size.
Sadly I parted ways with that beauty of a lens and in return, there is a 28 F2.8 on its way to replace it.