I have a Zeiss Opton Sonnar 2/ 50mm T lens that came on a Zeiss Ikon Stuttgart Contax IIA rangefinder. It has a bit of fungus, so it needs to be cleaned. I envision using this sweet, tiny lens on my Panny mft, and hope it will be worth the effort to pursue. Any thoughts on this? Where can I send it to get it serviced, and which mount adapter will I need? I live in the southern US, so I likely will have to ship it somewhere. The lens and camera are both in great condition, and the aperture ring works smoothly. A great find...... I think I gave about 15 dollars for it at a yard sale, and have taken quite a few photos with it.