Hi both!
Thank you for the kind welcome!
The super Takumar we got our hands on is an M42 and I bought an adapter from a German photo store that ordered it for me from Japan. It's good what you say about lens reviews, I had extensively checked this website's archive of reviews before pouncing with new lenses.
As I mentioned above, fungus was a concern but we got it out of the super Takumar with some help from Alan Marlow. What I do now to keep lenses fungus-free is to expose them to sunlight when I am not taking photos or, well, take more photos.
My experience with mechanical equipment has always been that lack of use usually creates problems.
Your 1958 Zeiss lens sounds amazing and I am hugely fascinated by maintaining and reviving quality equipment from the past.
I am still learning how to accurately meter and focus with the aperture stopped down though. One thing I thought was to look for a macrography focusing screen for the LX to get maximum light in because our KX has a matte screen that makes the image quite dark when stopping down the lens. Any tips on using stopped-down metering lenses are warmly welcome as there are a few more Super Takumars I had set my sights on.
PS: did you know Takumar was a Japanese portrait artist and the brother of the Pentax founder?