Miniature lens mounting thread with a nominal diameter of 12 mm and a pitch of 0.5 mm. Commonly known as S-mount or board lens mount, it is widely used in compact CCTV and embedded imaging systems.
Equipment and systems: S-mount board-camera lenses and M12x0.5 lens holders.
Examples include Lensation S-mount lenses, Commonlands M12 lenses, and Basler dart cameras equipped with an S-mount lens holder.
Compatibility and limitations: Not interchangeable with M12x0.75.
Matching threads alone do not guarantee that a lens will focus correctly or cover the camera sensor. Check the lens back focal distance, sensor format, holder depth and rear-element clearance.
S-mount does not specify a single flange focal distance.
Note: Focus is commonly adjusted by screwing the lens into or out of its holder. Secure the final position with a suitable locking method and avoid allowing the rear of the lens to contact the sensor or protective glass.
Camera · CCTV
Metric thread with a nominal diameter of 12 mm and a pitch of 0.75 mm. Used as the attachment interface on threaded versions of certain ShiftCam smartphone add-on lenses.
Equipment and systems: Documented examples include threaded versions of these ShiftCam ProLens accessories:
• 60mm Telephoto
• 18mm Wide-Angle
• 1.33x Anamorphic
These accessories mount in front of a smartphone’s existing camera lens.
Compatibility and limitations: Not interchangeable with the M12x0.5 thread used by S-mount board-camera lenses.
Compatibility depends on the exact lens version and mounting accessory. Check the thread pitch, available engagement, seating clearance and alignment with the phone’s camera.
A matching thread does not guarantee compatibility with every phone, case or camera position.
Note: Do not confuse this threaded connection with ShiftCam’s S.Mount twist-lock bayonet. ShiftCam offers converter rings for attaching existing threaded LensUltra lenses to its S.Mount accessories; the two interfaces are distinct.
Smartphone
Larger board-mount lenses for industrial cameras and some CCTV applications requiring a wider barrel than M12.
CCTV · Smartphone
Thread used in some smartphone lens accessories. Appears on telephoto and wide-angle add-on lenses for mobile photography.
Equipment and systems: Beastcage phone lens case
Compatibility and limitations: It is not compatible with the M17x1 thread used on other cases and cages.
Smartphone
Thread used in some smartphone lens accessories. Appears on telephoto and wide-angle add-on lenses for mobile photography.
Equipment and systems: Examples — check the exact model and thread specification.
Neewer iPhone cage
Sandmarc phone lens case
Ulanzi phone lens case
Compatibility and limitations: Match both the 17 mm thread diameter and the 1 mm pitch. Check whether a male or female connection is required. Mechanical thread compatibility alone does not guarantee correct alignment with the phone camera.
Smartphone
This thread was used to mount lenses to some machines engineered for document copying, technical reduction, and microfilm applications.
Equipment and systems: Schneider D-Claron 4/23mm
Cinema / Projection
Some microscope objective turrets are mounted using such a thread.
Microscope
M18x1 thread is used in vintage Pentaka 8mm film movie cameras.
Equipment and systems: Pentaka 8mm film movie camera
Cinema / Projection
Found on some older and Eastern European microscope objectives; also appears on certain telescope accessories.
Microscope · Telescope
No matching entries.
