Purest Unobtainium!! UV Lens and Filter, Exacta Mount!!!

Found and bought on Internet, a 50mm f/3.5 macro uncoated pure quartz lens, a U340 filter (passes 300-380nm, blocks visible light) T-mount, with Exacta, SA, and C-mounts, screw lens covers, all mint. Unobtainium, finest kind! Costs too much, but if I can make this work, there will be photos in ultraviolet light. Will fit my Topcon and Sigma SLR's.


  1. kdstevens
    kdstevens ·

    Cool! Nice find! How did you even know to look for this?

  2. herbert-4
    herbert-4 ·

    @kdstevens I'd shot IR, wondered about UV, Googled and found this: www.naturfotograf.com/index2.html and went hunting auctions and web sites, found mounts, and got lens here, and they're the last place making this stuff: www.ukaoptics.com I had to save up a while. EXPENSIVE. Was able to budget for it.

  3. herbert-4
    herbert-4 ·

    @akula here's lens, filter, mounts, informational links in comment...