@@diyextravaganza Hello, So today I cleaned the glass (all of it) on a Gorlitz 29mm f2.8 - just tested a few snaps and BINGO! Clear, crisp and colourful. I'll need to strip it again as there's a very tight spot on the focus ring midway, but now I know the glass is crystal I'll scour the web for info and pull it apart again looking for clues. And yes, totally zen vibe from start to finish :) Thanks again for being an inspiration to me.
I have done several helicoils but not this particular one. Anyway, the golden rule of working with helicoils is to mark the point where it goes out, take pictures (or make a video), clean well, good quality grease and re-assemble.
the focusing at infinity is given by the flange distance, you can test that by moving by hand the lens in front of your sensor. Then adding a adapter with the right distance is trivial I'd say
@@diyextravaganza On market are only one kind of adapters with (i think) the same distance to a sensor (anyway, no seller sharing information of adaper size/parameters). In Helios 44/2 i found tutorial how to modify lens itself to reach infinity - it works. I hope Pentacon have the same posibility.
I really enjoyed watching your video, it's like a meditation for me :) Great information too, thank you for sharing your knowledge and skills.
Thanks a lot, fixing lenses is a very relaxing activity in fact.
@@diyextravaganza You're welcome. I'm going to give it a try on a couple of old dusty Meyer Optic lenses, a 50mm and a 29mm :)
@@nigelgroves19 great, let me know the outcome, and remember to be zen while repairing :)
@@diyextravaganza Hello, So today I cleaned the glass (all of it) on a Gorlitz 29mm f2.8 - just tested a few snaps and BINGO! Clear, crisp and colourful. I'll need to strip it again as there's a very tight spot on the focus ring midway, but now I know the glass is crystal I'll scour the web for info and pull it apart again looking for clues. And yes, totally zen vibe from start to finish :)
Thanks again for being an inspiration to me.
@@nigelgroves19 Great news. It makes me very proud that my work inspire others !
This was a great video, well explained!
Great, thanks !
Thank you for your tutorial, however I'd like to regrease the helicoid too - have you got any experience with that?
I have done several helicoils but not this particular one. Anyway, the golden rule of working with helicoils is to mark the point where it goes out, take pictures (or make a video), clean well, good quality grease and re-assemble.
@@diyextravaganzaThank you for your advice. I succesfully managed to do the job but it took me a good 5 hours, still I'm happy I did it!
@@natanvance great, the more you do it, the easier it will become :)
I have this lens and one of the sides in the frame gets out of focus (about 1/5 of the picture), would you say that's something difficult to repair?
I'd say you need to realign the lenses. Not very difficult I think. Cheers.
Is that possible to modify easy way this lens to focus to infinity on modern cameras (with adapter)?
the focusing at infinity is given by the flange distance, you can test that by moving by hand the lens in front of your sensor. Then adding a adapter with the right distance is trivial I'd say
@@diyextravaganza On market are only one kind of adapters with (i think) the same distance to a sensor (anyway, no seller sharing information of adaper size/parameters). In Helios 44/2 i found tutorial how to modify lens itself to reach infinity - it works. I hope Pentacon have the same posibility.
@@dziarsky If it is on a nikon dslr, you'll never reach infinity, you can reach some 10m by offseting the rear lens using for example a o-ring
Một ống kính đẹp của Người Đức Gecmany.
Indeed, a very nice lens. Cheers my friend.