Hi Bashir, the gladiolus was shot wide open, that Telyt gives indeed a nice rendering and sharpness is still very good.
I got the lens off Catawiki and it came with a 16466M/OUBIO M39 to M-mount tube to be mounted on a Visoflex II or III mirror box.
So to use it without a Visoflex you need ~ 40 mm extra extension which I solved with a M39 extension tube between the lens and the OUBIO.
To mount it on my A7ii I use a Pixoo M to E adapter, for such a long lens you need one with a big "throat", otherwise you get dark corners. I also have a Shoten M to E-mount adapter but that throat is ~3 mm smaller than the Pixoo and gives dark corners at every aperture and distance setting. For shorter lenses the Shoten is perfect but not for my 135 and 200 mm M-mount lenses.