Leica 280mm f/4 APO-Telyt-R on Leica M Typ 240, Aperture Series (Telphone Poles and Snowy Summit)
Added to Guide to Leica is an aperture series with the Leica 280mm f/4 APO-Telyt-R, shot with the Leica R-Adapter M on the Leica M Typ 240, though fortunately the 280/4 APO has its own robust tripod lens foot.
This subject was chosen for its rigorous demands on lens and camera alignment.
Aperture Series: Telephone Poles and Snowy Peak (M240)
HD and Ultra-HD images are included, along with large crops.