Bi-telecentric zoom with motorized controls, magnification from 0.25x to 2x, for detectors up to 2/3″

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. Maximum angle between chief rays and optical axis on the object side. Typical (average production) values and maximum (guaranteed) values are listed. 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 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 Image side, at 1 σ standard deviation. Image side. One magnification step. Two magnification steps. 1 encoder pulse = 2.56 motor µsteps (with a 256 microstepping control). Indicates the availability of an integrated camera phase adjustment feature

Main optical specifications
Magnification	(x)	0.2500.5001.0002.000
Image circle diameter	(mm)	11.0
Max sensor size		2/3″

Object field of view
1/3”	(mm × mm)	19.20 x 14.409.60 x 7.204.80 x 3.602.40 x 1.80
1/2.5”	(mm × mm)	22.80 x 17.1211.40 x 8.565.70 x 4.282.85 x 2.14
1/2”	(mm × mm)	25.60 x 19.2012.80 x 9.606.40 x 4.803.20 x 2.40
1/1.8”	(mm × mm)	28.52 x 21.3214.26 x 10.667.13 x 5.333.57 x 2.67
2/3”	(mm × mm)	34.00 x 28.3617.00 x 14.188.50 x 7.094.25 x 3.55

Advanced optical specifications
Working distance (1)	(mm)	74.0
Working ƒ/N (2)		16
Telecentricity typical (max) (3)	(deg)	0.05 (0.10) 0.05 (0.10) 0.05 (0.10) 0.05 (0.10)
Distortion typical (max) (4)	(%)	0.05 (0.08) 0.04 (0.08) 0.04 (0.08) 0.08 (0.10)
Depth of field (5)	(mm)	13.203.300.800.20
Resolution (6)	(μm)	4120105
Reference point repeatability (7)	(μm)	6 5 2 4
Max image displacementbetween magnification changes (8)	(μm)	350

Motor parameters
Connector		DB15HD male
Number of motors		1
Type		Bipolar stepper
RMS winding current	(mA)	600
Winding voltage	(V)	24
Steps per revolution		200
Min. time for magnification change (9)	(s)	1.5
Max time for magnification change (10)	(s)	2

Encoder parameters
Number of encoders		1
Supply voltage	(V)	24
Maximum supply current	(mA)	30
Type		Magnetic rotary, incremental with reference
Output signals		A, B, Z (index)
Interfaces		RS422
Number of magnetic poles		120
Poles pitch	(mm)	2
Interpolation		500
Pulses per revolution		60000
Motor to encoder ratio (11)		2.56

Mechanical specifications
Mount		C
Phase adjustment (12)		Yes
Length	(mm)	211.5
Height	(mm)	142.0
Width	(mm)	103.0
Front diameter	(mm)	58.0
Mass	(g)	2359

Environmental specifications
Operating temperature	(°C )	0-40
Storage temperature	(°C )	0-50
Humidity	(%)	10-85 non condensing
IP rating		IP20
Installation		Indoor use only