[ATM] 12" Aero-Ektars

[rocketmaker@intergate.com]

I have a couple of the f:2.5s and eventually want to replace the  
thorium elements. They are not terribly "hot" but the thorium  
radiation has "browned" the elements and changed the optical  
properties. I can find a solution but was wondering if anyone has come  
across a solution that has a suitable glass substitute with mimimal  
refiguring of the other elements. Both rear elements seed refiguring.
I locate three Eastcoast suppliers of Balsaam cement and other curable  
optical cements but they are reluctant to ship to west coast. Only one  
seller on Ebay and he seemed too high. I used to buy Balsaam at just  
about any photo store but not any more.

I could also use a copy of the shutter manual if someone can scan and  
email it.

Best,
Rick Crockett

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