JIIA Lens Working Group has released “LE-006-2016 NF-J Mount Standard and Operational Regulations”.
　This document describes the specifications of the lens mount of the image sensor corresponding to “Class II” Image size (4 ~ 8 mm diagonal).
　This mount keeps high interchangeability with “NF Mount” as in LE-003, and is designed to improve the accuracy in alignment (the optical axis deviation) with a fitting part which is implemented in the vicinity of a screw thread.

JIIA Standard Download Area