MD-Rokkor 28/2 on M9

Leitz lens test would be performed today utilizing M9 M-mount body, also Minolta MD Rokkor 28/2 wide angle one would be carried together, the mounting adapter was prepared by combine M-body cap and MD lens cap together establishing flange back distance. Though range finder coupling mechanism does not exist in the adapter, distance measuring is done by reading the descriptions on the helicoid ring, as actual metering is not performed, the deeper focusing on wider angle lens would compensate an inconvenience enough to finish a desired transparencies. As for Elmarit 90/2,8 carrying together today has 90mm length of cylinder design, so lens designing is not some Tele-Photo one like nowadays construction but with a conventional long cylinder. All the Leica-M 90mm lenses were experienced by my actual experiment, the first generation model of Elmarit 90/2,8 remained at my hand now. Shorter and newer designing are not always exceedingly better than former model.
I have some sense of discomfort on Tele-Photo, Aspherical and Apo designing, that cannot be describe in words.