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Jupiter 12 35 mm F/2.8

zmix

New Member
Anyone using the Jupiter 12 35 mm F/2.8 in Leica Thread Mount on the GXR?

The rear element protrudes quite a bit, but I haven't seen on in person, thus been able to use the lens compatibility tester.

EdIt: I see it's on the "compatible" list.
 
Re: Jupiter 12 35 mm F/2.8?

Yes, you can use it. there`s lot of clearance and the lens is very good performer. The only russian lens you should beware of is collapsible industar 22 50/3,5 a copy of leitz elmar 50/3,5 which fit while the russian lens sticks out a mil or two.
 
Re: Jupiter 12 35 mm F/2.8?

I have used this lens and I think it is a great litte lens. Mine is M39 mount so I use a small (cheap) adaptor. Changing aperture is a bit strange, it is sort of on the inside of the filter ring. You have to turn the camera with lens facing up to change aperture. I can´t store it with the adaptor on, because I need to protect the rather special rear element with the dedicated rear cap. Here are som pitctures of it on the GXR and some images taken with it.
 

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Re: Jupiter 12 35 mm F/2.8?

zmix":2w1nx2zt said:
Thanks for the replies..! How does it look wide open @ f/2.8?
In my opinion it is sharp in the center even at f/2.8 (but I am not an experienced lens tester). The only other 35mm I have used on the GXR is Voigtländer Nokton 1.4/35. My Jupiter is as sharp in the center as the Voigtländer, both are a bit blurry in the edges but I think the Voigtländer is a bit better there. I seldom I expect, need or want sharp edges when I use f/2.8, but for others I guess that might be different. It is a good, well built and inexpensive lens. I use it more and more.

I took two shots with the lenses, both at f/2.8. Hope this helps.
 

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Re: Jupiter 12 35 mm F/2.8?

Thank you esp, those are very informative... I'd just been contemplating the Voigtlander..
 
Re: Jupiter 12 35 mm F/2.8?

I purchased a Jupiter-12 last week on e-bay in perfect shape, (except for a slight bit of oil on the aperture blades).

Quite an interesting lens. 35mm is close enough to a 50mm on the APS-C sensor to feel familiar immediately.
It's got a very beautiful look to it... I can't see any chromic aberration and the bokeh is gorgeous.

Fairly low contrast, mostly due to internal flare, but the flare actually adds a glowing quality to the images.

Here is an unretouched raw DNG file, only reduced to in size to 25% and converted to JPEG with no sharpening:
 

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zmix":2958a546 said:
I bought a second one...!!!

Hi zmix,

Hopefully you will do some comparisation shots with your Jupiters and let us know about the result.

If it is true what one could read about those lenses on various sites in internet the one from 1950 should outperform the 1980 made lens.
I am curious what the outcome will be.

My J'12 is also made 1980 (serial N8004117) obviously for export ("Made in USSR") as no cyrillic lettering is used.
I'm planning to do some comparisations with my CV 35mm.

Greets, Thomas
 
I think it's true that these lenses were made using left over Zeiss parts until 1952, it's shocking how much better the older lens is...

In the shot above, the 1980 lens was shot using the 1950 lens and the 1950 lens was shot with the 1980 lens.

In the shot below a 100% crop of a window plant, strongly backlit, the left image was shot with the 1950 lens and the image on the right was the 1980 lens.

The 1980 lens has terrible flare and low contrast when shot against strong backlight, but the 1950 retains vivid colors and contrast.

In both images the 1950 lens took the LEFT shot and the 1980 lens the RIGHT.



By visual inspection the 1980 lens looks to be in MINT condition, and the 1950 lens has a few dust specks.
The optical performance is clearly better on the 1950 lens.

The physical design has changed considerably from 1950. In the old lens, the filter thread is inside the focus barrel, and in the 1980 lens it is inside the aperture ring.
If you screw a filter onto the 1950 lens, the filter will hit the aperture ring inside of it, locking the lens at 1m...!!
 

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