Gitzo GS5370LB Quick Release Plate Long B lens mount_Leica Thread Mount not the much more common

not the much more common (and terrestrial) Nikon F mount

focusing action is very slightly irregular

with only very minor wear

this teleconverter dials in focus automatically after manually focusing to the general distance

The Rokinon 14mm f2

Gitzo GS5370LB Quick Release Plate Long B lens mount_Leica Thread Mount not the much more commonThe Gitzo GS5370LB Quick Release Plate Square B quick release plate is designed for Gitzo off centre ball heads, among others (check your head's manual for compatibility). In good condition, with minor cosmetic wear, two 1 4" camera screws. Image is for illustrative purposes only. Actual item may differ slightly.