It (I don't know if Butkus wrote it, but it is on his website) clearly states:
"All YS adapter mounts (and lenses) have the identical specifications as T Mount lenses and adapters so that T adapters may be used on YS lenses for those cameras for which no YS adapters may be available. Naturally, with T adapter the operation of YS lenses would be non-automatic."
Thanks for the response, but it's of little help. As I stated, I don't have a manual, and the BUTKUS page is not a manual, only instructions.
The removed YS mount is the same length/depth as a T-mount, but there is no way to attach a T-mount.
The length being identical does not contradict what I cited from the manual.
I guess that in some mount cases it may work then to just exchange that rear part of the adapter.
{Moderator's edit of unnecessary argument}The part that I did remove has the exact same depth as a T-mount. If there was something else to remove, and if I could somehow screw-on a T-mount, the lens would no longer be focused according to the distance scale. The distance to the film would be shortened.
I guess that in some mount cases it may work then to just exchange that rear part of the adapter.
It is a hopeless case, when respective advice from a member which got the manual and the lenses, with and without an adapter mounted, is ignored.
If you look at the second picture, there is nothing left on the lens to remove.
I'm willing to bet that the thin ring I've marked in red is screwed on to a T thread that I've marked in blue.
I'm willing to bet that the thin ring I've marked in red is screwed on to a T thread that I've marked in blue.
I tried that approach on one, but it wouldn't budge. But on the other one, only a little encouragement was needed. I managed to force the other one off without any damage.
Now I can use both of these lenses on other cameras with T2-mounts.
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