So, after using my J-12 for some time now - about 6 months since I opened this topic here - I find it still very sharp when stopped down to 5.6 or 8, but a bit less sharp when opened up. I also kind of miss the bigger apperture 2 to create "cooler" oof-areas for let's say kind of portrait-shots.
There's a question which came to my mind today: If I would be intended to use a yellow filter, which one should I pick (light,middle or dark) ? And is it still possilbe to turn the apperture ring with it correctly? What about flaring?
(All questions in regard to the LTM/M39 lens type, not the Contax/Kiev one).
Any comments appreciated.
For my results with my example of the Jupiter-12 lens, please visit my flickr-page.