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Re: Yellowing of radioactive lens elements....Re: [OM] 55/1.2

Subject: Re: Yellowing of radioactive lens elements....Re: [OM] 55/1.2
From: Mark Marr-Lyon <markml@xxxxxxx>
Date: Mon, 11 Aug 2003 09:10:18 -0600
Gary Reese wrote:
>The 1971 era 50mm f/1.4 Zuiko in an M42 mount was radioactive.
>Perhaps other non OM Syem Zuikos were, too.

This is the FTL lens, right?  Were these early lenses just modified into the 
early OM lenses, or did the optical properties change?

>It would be a useful exercise to determine if any over 180,000 have yellowed.

Mine's SN 184,276 :)
 
Mark


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