Update History Date Event 2025-06-01 Lens clarification and numbering update. Lxxx[-yyy-aaa][-bbb] xxx - Lens ID yyy - Focal length aaa - Lens mount (CS, M12, ...) bbb - Filter VIS - Band Pass 380-650nm, OD=2 NF - No filter NIR1 - Long pass 850nm filter 2025-06-01 If no filter specified for CS or C-mount lenses, assume NF lens option. 2025-06-01 If no filter specified for M12-mount lenses, assume VIS lens option.