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whitecat
04-23-2008, 09:39
I want to try one of these on my Leica M7 or Zeiss Ikon camera. Is it a screw on or M mount? I assume it is coupled to my rangefinder? Any particular model I want to look for.
Thanks
Uwe_Nds
04-23-2008, 09:44
It's screw-mount, rangefinder coupled, focuses down to slightly less than 1 m and I have a 1966 one which I am very happy with - like so many others here as well.
I understand that on the newer black ones, the front lens rotates - if that's an issue for you.

Best regards,
Uwe
Kim Coxon
04-23-2008, 09:52
As with most other LTM lenses, they should work very well with an LTM/M adapter and you will retain the RF coupling. Unlike the J3, there tend to be few problems with the J8 as far as focus etc. The earlier chrome ones are perhaps more convenient to use as has already been mentioned.

Kim
Athos6
04-23-2008, 10:03
I bought 2, since they are so cheap, just in case one was a dud. If you do a google search you can find Brian's instruction on how to tear one down if need be. I'm still waiting for mine to come in the mail... Fom what I see on here and on flickr they have the nice sonnar look.
Kim Coxon
04-23-2008, 10:05
No need for a search. Most of the FSU lenses are covered on my website here.
http://pentax-manuals.com/repairs.htm

Kim


I bought 2, since they are so cheap, just in case one was a dud. If you do a google search you can find Brian's instruction on how to tear one down if need be. I'm still waiting for mine to come in the mail... Fom what I see on here and on flickr they have the nice sonnar look.
payasam
04-23-2008, 10:07
Whitecat, there's a current thread with J-8 sample pictures.
Athos6
04-23-2008, 10:12
No need for a search. Most of the FSU lenses are covered on my website here.
http://pentax-manuals.com/repairs.htm

Kim

Thats the one! Good stuff. Although, it needs a section on the J-12 :) hint, hint, :p
Kim Coxon
04-23-2008, 10:18
One of these days, someone will need one doing and I will add it then. The basic principle is the same as the Orion though.

Kim

Thats the one! Good stuff. Although, it needs a section on the J-12 :) hint, hint, :p
Highway 61
04-23-2008, 14:04
If you pick up a late black one, get one marked "Jupiter-8" in latin font on the front namering and "Made in USSR" on the focusing ring.

These markings tell that this is an "export model" having gone through a very satisfying QC process.

Since they don't sell for more than the black ones with cyrillic letters on their front namering and made for the domestic market with probably no QC, I think it's a tip to keep in mind. Worked for me. My 1982 black J-8 is absolutely outstanding.