• Description: this 1/2.5" sensor compatible wide angle fish-eye is in new condition. It is S mount, which means it is compatible with "S Mount" cameras only (or CS mount with proper S mount to C mount adapter). Nice for meteor and UFO capture works. Bag opened for pictures only. It includes a locking ring to lock focus by screwing lens "against" the camera.
• Specs: 1.7mm - F2.0 / Mount: S mount (M12x0.5) / Angle of view 180º  / Dimensions: 12 (barrel) * 20 (widest diameter) * 18mm (length).