Focusing (1)		nearnominalfar
Magnification	(x)	1.7931.7501.705
Image circle Ø	ø(mm)	28.7
Object field of view (mm x mm)
with KAI-04050 16 mm diagonal w x h 12.8 x 9.6		7.1 x 5.47.3 x 5.57.5 x 5.6
with 2k x 10 µm detector 20.48		11.411.712.0
with KAI-4022/4021 21.5 mm diagonal w x h 15.2 x 15.2		8.5 x 8.58.7 x 8.78.9 x 8.9
with KAI-08050 22.6 mm diagonal w x h 18.1 x 13.6		10.1 x 7.610.3 x 7.810.6 x 8.0
with APS-C 28.35 mm diagonal w x h 23.6 x 15.7		13,2 x 8,813,5 x 9,013,8 x 9,0
with 4k x 7 µm detector 28.67		16.016.416.8
Optical specifications
Working distance (2)	(mm)	82.783.885.0
Focal length	(mm)	79.8
f/# (wF/#) (3)		6.5 (18)......
Distortion typical (max) (4)	(%)	< 0.01 (0.03)
Field depth (5)	(mm)	0.4
CTF @ 50 lp/mm	(%)	> 35
Image side numerical aperture		0.028
Object side numerical aperture		0.050
Mechanical specifications
Length (7)	(mm)	234.5
Diameter	(mm)	52.0
Mass	(g)	658
Phase adjustment (6)		Yes
Mount		M42x1 FD10.56

Last update: 2019-07-08

Notes

Maximum and minimum magnification changes when focusing.
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/#): the real F-number of a lens when used as a macro. Lenses with smaller apertures can be supplied on request.
Percent deviation of the real image compared to an ideal, undistorted image: typical (average production) values and maximum (guaranteed) values are listed.
At the borders of the field depth the image can be still used fo r measurement but, to get a perfectly sharp image, only half of the nominal field depth should be considered. Pixel size used for calculation is 7 μm.
Indicates the availability of an integrated camera phase adjustment feature.
Measured from the front end of the mechanics to the camera flang e.

All product specifications and data are subject to change without notice to improve reliability, functionality, design or other. Photos and pictures are for illustration purposes only.

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Despite the efforts made to generate an error-free compatibility list, we always recommend to consult the Opto Engineering® technical support department before purchasing a compatible product. Opto Engineering® shall not be liable for any damage or malfunctioning caused by the incorrect selection of a compatible product.

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