Focal Length 12mm
Maximum Aperture Ratio 1:1.4
Iris Type Automatic
Image Size 6.4(H)mm x 4.8(V)mm (equivalent to 1/2")
Angular Field of View 1/2" H 29.8° V 22.3°
Angular Field of View 1/3" H 22.2° V 16.7°
Minimum Object Distance Determined by camera
Optical Filter Size M37.5mm, P=0.5
Mount Special C-Mount (CS-Mount, 1"-32UN)
Weight (lbs.) 0.08 (40g)
Dimensions ш1 11/16" x 1 5/16" (ш43 x 41.5mm)

http://www.nivie.com/pdf/WV-LA6A-WV-LA12A.pdf