Un Yellowing The Thorium ! ;-)

Discussion in 'Photo Hut' started by noeettica, Feb 22, 2014.

  1. noeettica

    noeettica Well-Known Member

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    With a vast collection of Thorium lenses this peaked my interest !

    http://goods2send.com/jansjo


    http://www.rangefinderforum.com/forums/showthread.php?t=101883
     
  2. Les_Lammers

    Les_Lammers Well-Known Member

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    Leaving the lens in the sun for a month or so may help.
     

  3. noeettica

    noeettica Well-Known Member

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    I have heard that but I don't want to subject them to that kind of heat

    I have the lamp and just did one lens , it works great !!!