bradbrok
Soviet RF Enthusiast
My J8 lens has had its aperture ring come loose, one of the pins on the ring came out, how would one go about repairing this? If I press down from the opposite side i can adjust the aperture fine, so one side is catching a little bit.
bradbrok
Soviet RF Enthusiast
Anyone know what I can use in the holes on the aperture ring? Anyone? I've tried seeing if a paper clip works, and the answer is not really.
ChrisCummins
Couch Photographer.
Don't own a Jup-8 myself. Is it a grub screw that's coming out? If so I imagine you could salvage one from elsewhere
wolves3012
Veteran
The "pins" are actually *very* tiny screws, you'll be lucky to get anything else to work except the correct screw.
I'd love to help but it's one part I don't have...maybe you can pick up a damaged lens from the auction site or somewhere? Condition won't be important so it would be cheap. Failing that, a replacement J-8 won't cost a lot, you can often get one cheaply with a broken Zorki 4 or 4K.
EDIT: Just a thought, you could try PM-ing the lens gurus, Brian Sweeney or Kim Coxon, they may well have a spare one.
I'd love to help but it's one part I don't have...maybe you can pick up a damaged lens from the auction site or somewhere? Condition won't be important so it would be cheap. Failing that, a replacement J-8 won't cost a lot, you can often get one cheaply with a broken Zorki 4 or 4K.
EDIT: Just a thought, you could try PM-ing the lens gurus, Brian Sweeney or Kim Coxon, they may well have a spare one.
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You should see the slot in the screws to tighten them with a jewelers screwdriver. Two screws in tight is plenty to turn the ring, even one. I've seen a lot of hacks, and the screws strip easily. I've seen a lot of them with the slot stripped off that looks like a pin. I've drilled them out before.
Brian Legge
Veteran
One of the 3 screws was missing from mine. If I'm gentle, the other two work fine holding it in.
Short of buying another J8 as a parts lens, what is the best way to get replacement screws like this? How do people find out what the specs of the screws are in the first place?
Short of buying another J8 as a parts lens, what is the best way to get replacement screws like this? How do people find out what the specs of the screws are in the first place?
bradbrok
Soviet RF Enthusiast
I think I'm going to ditch this idea and get myself a J3, so I'm in the market for one now.
I did take it to a jeweler in my area, since it's the only person I could think of who has experience with delicate mechanics, and I'm basically out of luck. I posted up an ad on APUG, so I guess I'll just wait it out.
And mine is missing two screws, the third is coming out now. :\
I did take it to a jeweler in my area, since it's the only person I could think of who has experience with delicate mechanics, and I'm basically out of luck. I posted up an ad on APUG, so I guess I'll just wait it out.
And mine is missing two screws, the third is coming out now. :\