Industar /Jupiter lenses & adapters

[trondareo]

I have an x-e1 with a Kipon m39 adapter. The jupiter 8 and industar 61 work very well with the Leica Thread Mount adapter. I have not needed any infinity adjustment.

But industar 50 50mm and and Industar-69 28mm lenses are far from focusing. Is there any way to use these?

It would also be great to catalog which FSU lenses work well, and which you can adapt or cant use.

 

[FalseDigital]

Does the Industar-69 cover the full sensor space? I read somewhere that since it's for half frame cameras that it doesn't?

Would you mind posting a sample image from it? I'm curious.
Also, I read the build quality really varies on that particular lens.
What other bodies have you tried using it with?

 

[MartinP]

The I-69 was made for a half-frame camera, and APS-C is a half-frame digital format - give or take a millimetre. However, the rear focus distance on the half-frame camera may not have been the 28mm or so expected by the LTM adapter used by the OP.

As well as the LTM rangefinder version, the Industar-50 lens also came in a fitting for an early SLR using a 39mm thread and, later, with a M42 fitting (but this would not fit the adapter of the OP of course). The SLR needed a larger distance between the lens and film-plane as the mirror assembly had to fit in between, so it will also not focus as expected on the LTM 39mm adapter even though the thread might fit.

It is very possible that these differences are what the OP is seeing with the adapter he has bought.

 

[trondareo]

Since posting I also found that the Ind. 69 is half the area. Here are the FSU lenses I mention.

From the left: Jupiter 8, Industar 61, Industar 50, Industar 69
Below the Kipon L39 -FX adapter
(Sorry, the pics are from my ipad)

Closer look at industar 50 and 69

 

[FalseDigital]

Sorry, I should have been more clear.

Can you post a sample photo taken with this lens mounted on the X-E1 body?
Not a picture of the lens and body itself ^^;;;

 

[den_sh]

I have an x-e1 with a Kipon m39 adapter. The jupiter 8 and industar 61 work very well with the Leica Thread Mount adapter. I have not needed any infinity adjustment.

But industar 50 50mm and and Industar-69 28mm lenses are far from focusing. Is there any way to use these?

It would also be great to catalog which FSU lenses work well, and which you can adapt or cant use.

There quite a few russian lens that have ltm mount (a.k.a. m39) but m42 flange distance. Such lens should work with m42 adapter and m39 to m42 step up ring.

 

[trondareo]

False Digital, I understood you just after I posted, sorry, Ill get example images posted this evening.

 

[Mr_Flibble]

The I-69 was made for a half-frame camera, and APS-C is a half-frame digital format - give or take a millimetre. However, the rear focus distance on the half-frame camera may not have been the 28mm or so expected by the LTM adapter used by the OP.

The I-69, once (easily) modified to 28.8mm flange distance, is actually a pretty sweet lens. It serves as a cheap 40mm on my R-D1, with some pleasant vignetting.

 

[FalseDigital]

The I-69, once (easily) modified to 28.8mm flange distance, is actually a pretty sweet lens. It serves as a cheap 40mm on my R-D1, with some pleasant vignetting.

Is there a guide somewhere online on how to do this? Seems like a cheap and compact way to shoot.

 

[Mr_Flibble]

You want the lens to screw in about a millimeter deeper into the mount. It involves grinding down either the focusing helical on the lens mount or on the optical unit.

Hamish Gill went with changing the optical unit
Hamish Gill's article on modifying the I-69


Brian Sweeney went with grinding down the helical on the lens base (I followed this method) and the focus stop pins. With a Dremel tool I took about 1 millimeter off this inner ring (with the focus thread) and pins seen in this photo:

I would verify the focus with my R-D1, shooting wide-open at infinity,
Disassemble the lens.
Grind some more.
Clean up the parts and re-assemble the lens.
Repeat, until I got it right. Took me about 3 attempts before I had removed enough and the focus was correct.

After final re-assembly the dot on the aperture ring will no longer line up correctly with the numbers, I added another dot with a marker.

And you can always reset the flange distance if you ever want to use the lens on a Chaika Camera again 😉

 

[apostasiometritis]

The Industar 50 you have there is indeed an SLR version, easily distinguished because of the smaller size than the RF counterpart. The 69 as has been mentioned requires adjustment. There are lots of guides on how to do this on the net, it should not be too hard with a digital body.

The RF Industar 50 should be roughly the size of a J8, same style with the SLR one.