Macro lens for 2/3″ sensors, magnification 0.200x, C-mount

Working distance: distance between the front end of the mechanics and the object. Set this distance within ±3% of the nominal value for maximum resolution and minimum distortion. Working f-number (wf/N): the real f-number of a lens in operating conditions. Percent deviation of the real image compared to an ideal, undistorted image. At the borders of the field depth the image can be still used for measurement but, to get a very sharp image, only half of the nominal field depth should be considered. Pixel size used for calculation is 3.45 μm. Object side, calculated with the Rayleigh criterion with λ= 520 nm Measured from the front end of the mechanics to the camera flange.

Main optical specifications
Magnification	(x)	0.200
Image circle diameter	(mm)	11.0
Max sensor size		2/3″

Object field of view
1/3”	(mm × mm)	24.00 x 18.00
1/2.5”	(mm × mm)	28.50 x 21.40
1/2”	(mm × mm)	32.00 x 24.00
1/1.8”	(mm × mm)	35.65 x 26.65
2/3”	(mm × mm)	42.50 x 35.45

Advanced optical specifications
Working distance (1)	(mm)	158.3
Focal length	(mm)	28
ƒ/N		5.3
Working ƒ/N (2)		6.4
Distortion (3)	(%)	< 0.07
Depth of field (4)	(mm)	8.30
Resolution (5)	(μm)	20.3

Mechanical specifications
Mount		C
Length (6)	(mm)	27.4
Outer diameter	(mm)	30.0
Mass	(g)	27