karthikrr

Joined on Apr 27, 2019

karthikrr's recent activity

  • Thanks! Your appreciation is much appreciated :) I actually got more than a few people take note of the fact that I mentioned the lens in the description and contact me asking me for more details ...
  • Oh, that is super helpful! I knew aus Jena was the export name, but somehow it never struck me that I should simply google Carl Zeiss Jena and the information is essentially the same! Thanks, this ...
  • Created discussion thread Video: made with aus Jena 135mm f4
    I went out a few days ago to test the aus Jena 135mm f4 Sonnar lens. Ended up using it to make a video! https://www.youtube.com/watch?v=zTp9-UPex94 The camera was a Panasonic GH2 running a hacked ...
  • Oooops, scratch that! I just picked up the other Helios lenses and realized the Zebra 44-2 is also in need of service, with both stiff aperture and stiff focus ring. Pics as under. This too does ...
  • Somehow I never saw this page! Very helpful, thanks :) Makes me even more curious to do some comparisons now, to see if the Russians benefitted from the tech transfer. WD40 count as penetrating ...
  • AAAAAH! I blame sleep deprivation plus lighter fluid fumes :P Thanks!!!
  • I did actually recently acquire two GH2 bodies for video work! I have gone a bit crazy picking up M42 lenses to experiment with ( https://www.dpreview.com/forums/thread/4396509 has a long post ...
  • Probably! I am more curious to know about the optical design differences though. Specifically whether the 81H was a different clone, or an evolution of zeiss designs by the Russians. Have not ...
  • Maybe I missed it while reading this thread, but did you ever pick up a spectacle lens wipe (or a microfiber cloth combined with a little isopropyl alcohol) and just try cleaning the two elements ...
  • Yes, when I first read that thread, I pretty much left with the impression that there was really just the 58mm Helios lenses and the rest were nothing to write home about. But now it seems they do ...
  • Oh, I SO want to "try this at home"! I have a number of "donor lenses" waiting to be taken out by a laser :P Repairing "dad's" gear ... a bit of a been there done that situation ... :) I've ruined ...
  • Good insights!!! Decentering, thats a scary topic. Without a laser collimator, how does one "adjust" this? Simply trial and error??? I do have a zoom lens on hand that has VERY foggy internal ...
  • Okay, so I managed to fix it. 1) Front: I used a bottle of talcum powder wrapped with double sided tape to unscrew the front ring with the lens name and other details on it. Once that came off, ...
  • Glad I did not buy this! I never smoked, so I am rather clueless. But from the internet, Zippos use wicks even today and therefore logic dictates Zippo lighter fluid is liquid and the appropriate ...
  • Okay, that was GREAT timing ... So, I looked at a local site for lighter fluid and found most of them come in a compressed can with a tiny pin/nozzle that is inserted into the lighter for ...
  • Woohoo, I am happy to reply that an inverted bottle of my wife's "Bio Basil & Sandalwood" powder with two layers of double sided tape at the bottom worked FANTASTICALLY. I tested it on a different ...
  • Hehe, its funny how we need to hear someone else say it to believe it. I kept telling myself this all last night, but was not able to let it go ... Now I feel better :P VERY HARD, but yes, I picked ...
  • Created discussion thread Did I just ruin my Jena 135???
    One of the lenses I acquired in the last month is an Aus Jena 135mm f4 Sonnar (black version). It is in pretty good shape, but the glass has some light fungus on it. Suffering from bad OCD, I was ...
  • Just started playing with adapted lenses, shot these two yesterday in Ghent, Belgium with a GH2 and the Helios 44m. The colors you see on the bubble are untouched from the raw image, only exposure ...
  • Sounds very plausible to me. I have never had to deal with an oily aperture yet, so cannot speak from experience. BUT, I wonder if it could be a combination? Separation occurs, the heat generated ...
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