[Leica] IMG: Takumar in the Sunshine

[Douglas Barry]

That's a nice shot of your Super Takumar, Jim.

I have three of them - a 55/1.8 no. 3182721, a 35/3.5 no. 3402817, and a 
105/2.8 no. 3711646 - and all seem fine with no discoloration. I think 
lens wise, we're lucky over here in Ireland and the climate certainly 
doesn't seem conducive to fungus or other rot. I'll give them a spin on 
the A7ii shortly, but I'm next due to try my OM Zuiko 55/1.2 which is 
the newer version and not the radioactive one.

Douglas


On 20/03/2017 20:25, Jim Nichols wrote:
> My slightly radioactive Pentax Super-Multi-Coated Takumar 50/1.4 is 
> undergoing a sunshine treatment in hopes of reducing the slight 
> discoloration of the 3 rear elements.  The recommended exposure is 
> about a week, but may get extended because of bad weather days. You 
> may note that this photo was taken with with a Takumar 55/1.8, which 
> also has Thoriumdioxide glass, but is not discolored enough to notice.
>
> http://www.gallery.leica-users.org/v/OldNick/20170320-P3205865.JPG.html
>
> Comments and critiques welcomed and appreciated.
>