Carl Zeiss Jena Red MC Sonnar 135mm f3.5 Lens M42 Fit or DSLR
Carl Zeiss Jena Red MC Sonnar 135mm f3.5. Focus is a little uneven, noisy & doesnt feel as smooth as it might. Glass all very nice. Clean & clear. Aperture works well, nice & snappy. But it works well enough, still very usable.