how to swap Soligor T4 mount?

BradS · Aug 4, 2015

A new-to-me Soligor lens appears to have the T4 mount. I've seaeched the web and done some reading but nothing I cams accrss says how to actually remove and replace the mount...

EDIT: tried some different search terms and found this page http://www.suaudeau.eu/memo/Manuels/Soligor_T4.pdf

Gerald C Koch · Aug 4, 2015

The various T mounts unscrew from the lens proper. All the mounts use the same thread size and diameter. You grasp the knurled ring at the back of the lens and twist.

BradS · Aug 4, 2015

It looks like it **should** be easy. Trouble is that I cannot get the darned mount ring to move at all. The lens I have is a 135mm f/2.8 Soligor. It came with a Nikon non-AI mount adapter ring....which is fine but, I'd prefer to have an M42 mount.

Seems like a decent lens.

Gerald C Koch · Aug 4, 2015

I have an 100 mm Soligor and 3 different mounts. Never had any problem removing any of the mounts. Of course you never know what the previous owner might have done. First make sure that it really is a T mount lens. Then check to see if he didn't use something like Loctite on the threads. Don't try to force anything.

tokam · Aug 5, 2015

If it's alloy to alloy contact between lens and adapter and they've been together for 40+ years then I'm afraid they are probably bound together by corrosion, no matter how little.

If you are brave you could try a small drop of penetrating oil in 3 or 4 places around the adapter and leave for a while and reattempt to unscrew.

I try not to leave any aluminum to aluminum screw devices attached to each other. Brass to aluminum is OK.

Xmas · Aug 5, 2015

tokam said:
If it's alloy to alloy contact between lens and adapter and they've been together for 40+ years then I'm afraid they are probably bound together by corrosion, no matter how little.

If you are brave you could try a small drop of penetrating oil in 3 or 4 places around the adapter and leave for a while and reattempt to unscrew.

I try not to leave any aluminum to aluminum screw devices attached to each other. Brass to aluminum is OK.

True but there are also people who cannot abide things unscrewing and use epoxy or nail lacquer in threads to bond parts, I have a LTM lens Al threads on lens in a chrome brass M adopter, won't shift...

BradS · Aug 5, 2015

I tried again to separate mount from lens. This time, I mounted the lens on a body and was able to separate the lens from the mount with a little effort. It seesm it was just a little stuck from being mated for the last few decades.

Now, I just need to find an M42- T4 mount adapter! Searched KEH but, no luck. Same at Amazon. Any suggestions? Will post a WTB ad here too...

albada · Aug 6, 2015

BradS said:
I tried again to separate mount from lens. This time, I mounted the lens on a body and was able to separate the lens from the mount with a little effort. It seesm it was just a little stuck from being mated for the last few decades.
Now, I just need to find an M42- T4 mount adapter! Searched KEH but, no luck. Same at Amazon. Any suggestions? Will post a WTB ad here too...

Search for it on eBay, but be sure to search for both T4 and TX. Vivitar changed from one to the other, and you can put TX-adapters on T4 lenses (but not always vice versa).

Mark Overton

BradS · Aug 6, 2015

albada said:
......you can put TX-adapters on T4 lenses (but not always vice versa).

Mark Overton

are you sure? I thought I read the exact opposite...... TX lenses could mate with a T4 mount adapter but not the other way around?
:confused:

wiltw · Aug 6, 2015

BradS said:
are you sure? UI thought I read the exact opposite...... TX lenses could mate witha T4 mount adapter but not the other way around?
:confused:

The TX lenses (made by Tokina) followed the T4 lenses (made by Soligor). It is difficult to identify whether a lens is a T4 vs. a TX without looking at the inside of the adapter.
Depending upon the adapter, T4 adapter might or might not fit TX lens.

albada · Aug 7, 2015

I thought that the adapters were backward compatible, so that the older lenses (T4) would fit the later adapters (TX), but not nice versa. Anyway, it's easier to buy some Adaptall (-1 or -2) adapters and lenses cheaply and be done with it.

how to swap Soligor T4 mount?

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