Partially telecentric lens, focal length 55 mm, f# 2.8-32, C-mount

Working distance: distance between the front end of the mechanics and the object. Percent deviation of the real image compared to an ideal, undistorted image. Measured from the front end of the mechanics to the camera flange

Main optical specifications
Focal length	(mm)	5555
Magnification	(x)	0.0130.518
Image circle diameter	(mm)	1111
Max sensor size		2/3″2/3″

Angle of view
1/2”	(deg)	8.3-
2/3”	(deg)	11.5-

Object field of view
1/2”		509.15 x 381.8612.36 x 9.27
2/3”		676.21 x 564.0416.42 x 13.70

Advanced optical specifications
Working distance range (1)	(mm)	140 - 5000140 - 5000
ƒ/N		2.8 - 322.8 - 32
Back focal length	(mm)	29.829.8
Distortion on 1/2" (2)	(%)	--
Distortion on 2/3" (2)	(%)	0.60.6

Mechanical specifications
Iris control		Manual
Focus control		Manual
Mount		C
Filter thread		M43 x 0.75
Outer diameter	(mm)	53
Length (3)	(mm)	92.9
Mass	(g)	320