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12.5X Precision Zoom Lens


  • Compatible with Nikon and Mitutoyo Objectives
  • High Resolution (FOV range from 0.24 to 45.3mm)
  • Optional Reticle Projection Attachment

The 12.5X Precision Zoom Lens is beneficial to biomedical, semiconductor, telecom and other microscopy-oriented industries due to its versatility. The optical design is modular and uses large image numerical apertures to yield high-resolution images in a variety of lens configurations. The lens can accommodates camera sensors up to 2/3" format.

A complete optical system requires a TV Tube, a manual upper zoom module and a lower module. Auxiliary lenses can be added to the lower module for easy adjustment of working distance and field of view as applications require. For high magnification inspection, the 12.5X Precision Zoom can be used with Mitutoyo and Nikon objectives (adapter available).

The coaxial lower module kit consists of a fine focus coaxial module, a coaxial coupler, a 40" fiber optic light guide and an appropriate fiber optic adapter. An optional ring light adapter (#89-922) offers an in-line illumination alternative when coaxial illumination is not suitable for the intended application. The reticle projection accessory (#59-682) removes the need for additional electronics that employ crosshairs, circle patterns or other target types for inspection measurements. The reticle projection head accepts all 21mm diameter transmission reticles.

Note: Full list of required components under the specifications tab.

Technical Information

 
  Item Stock No.
One Required 1.5X TV Tube #56-625
2.0X TV Tube #56-626
Required Manual Upper Zoom Module #59-671
One Required Fine Focus Lower Module #59-672
Coaxial Module Kit #59-756
Optional 0.25X Auxiliary Lens #59-677
0.50X Auxiliary Lens #59-678
0.75X Auxiliary Lens #59-679
1.5X Auxiliary Lens #59-680
2.0X Auxiliary Lens #59-681
Mitutoyo Objective Adapter #59-675
Nikon Objective Adapter #59-676
Ring Light Guide Adapter #89-922
1.0x Reticle Projector #59-682
Mounting Clamp #59-683
0.629" ID, Fiber Optic Light Guide Adapter #38-947
 
Auxilary Lens Specifications
Non-Coaxial Illumination
Coaxial Illumination
1.5X
2.0X
1.5X
2.0X
Low High Low High Low High Low High
0.18X† 468mm WD NA 0.0035 0.015 0.0035 0.015
MAG 0.14 1.8 0.19 2.3
FOV* 45.6mm 3.65mm 34.2mm 2.7mm
0.25X 310mm WD NA 0.0048 0.025 0.0048 0.025
MAG 0.20 2.4 0.26 3.3
FOV* 32.8mm 2.6mm 24.6mm 1.97mm
0.50X 178mm WD NA 0.010 0.050 0.010 0.050 0.010 0.050 0.010 0.050
MAG 0.39 4.9 0.52 6.5 0.39 4.9 0.52 6.5
FOV* 16.4mm 1.3mm 12.3mm 0.98mm 16.4mm 1.3mm 12.3mm 0.98mm
0.75X 114mm WD NA 0.014 0.075 0.014 0.075 0.014 0.075 0.014 0.075
MAG 0.59 7.3 0.78 9.8 0.59 7.3 0.78 9.8
FOV* 10.9mm 0.88mm 8.2mm 0.66mm 10.9mm 0.88mm 8.2mm 0.66mm
1.00X (No Aux) 89mm WD NA 0.019 0.10 0.019 0.10 0.019 0.10 0.019 0.10
MAG 0.78 9.8 1.0 13.0 0.78 9.8 1.0 13.0
FOV* 8.21mm 0.66mm 6.4mm 0.49mm 8.21mm 0.66mm 6.4mm 0.49mm
1.5X 52mm WD NA 0.029 0.15 0.029 0.15 0.029 0.15 0.029 0.15
MAG 1.17 14.6 1.6 19.5 1.17 14.6 1.6 19.5
FOV* 5.47mm 0.44mm 4.10mm 0.33mm 5.47mm 0.44mm 4.10mm 0.33mm
2.0X 32mm WD NA 0.038 0.20 0.038 0.20 0.039 0.20 0.038 0.20
MAG 1.6 19.5 2.1 26.0 1.6 19.5 2.1 26.0
FOV* 4.1mm 0.33mm 3.0mm 0.25mm 4.1mm 0.33mm 3.0mm 0.25mm

*Horizontal FOV based on ½" Sensor
†Based on #59-677 Auxiliary Lens at 460mm WD

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