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Multi-Function High Magnification Calibration Targets


  • Designed for Measurement Calibration; Ideal for Microscopes and Machine Vision Systems
  • Includes Ronchi Rulings, Concentric Circles, Square Grids, and a Linear Microscale
  • Two Targets Available for Different Magnifications
  • NIST Certificate of Accuracy Included

Use these "all-in-one" targets to measure microscope and vision system parameters, without separate calibration targets. Targets will test and calibrate our Mitutoyo objectives, Zeiss microscopes, and high magnification video lenses for resolution, distortion, and depth of field (DOF). Targets include variable frequency Ronchi rulings, sets of grids and concentric circles with varying line spacings and widths, a microscale, and edge blocks to prop up target for DOF measurements. A user information card, complete manual on CD, and NIST certificate are provided.

Use Low Frequency Target for optical systems with 4X to 20X objectives. Target is useful for machine vision systems with low magnifications and long focal distances.

Use High Frequency Target for optical systems with 20X to 100X objectives. Target is useful for microscopes and other systems with high magnifications and short focal distances.

Technical Information

4X - 20X Target Specifications - Concentric Circles
Outer Diameter (mm) Line Spacing (mm) Line Width (μm)
5.0 0.25 20
4.0 0.25 15
3.0 0.25 10
2.0 0.10 7.5
1.0 0.10 5
4X - 20X Target Specifications - Grids
Width (mm) Line Spacing (mm) Line Width (μm)
4.5 0.25 20
4.5 0.25 15
4.5 0.25 10
4.5 0.10 15
4.5 0.10 10
4.5 0.10 5
2.55 0.075 10
2.55 0.075 5
2.55 0.050 5
2.55 0.050 2.5
4X - 20X Target Specifications - Ronchi Rulings
Range (lp/mm) Frequency Change (lp/mm)
60 - 380 20
4X - 20X Target Specifications - Linear Microscale
Length (mm) Divisions/mm Microns/divisions
0 - 68.2 20 50
20X - 100X Target Specifications - Concentric Circles
Outer Diameter (mm) Line Spacing (mm) Line Width (μm)
3.0 0.25 10
2.0 0.10 7.5
1.5 0.10 5
1.0 0.05 5
1.0 0.05 2.5
20X - 100X Target Specifications - Grids
Width (mm) Line Spacing (mm) Line Width (μm)
3.0 0.25 10
3.0 0.25 7.5
3.0 0.25 5
3.0 0.10 10
3.0 0.10 7.5
3.0 0.10 5
2.55 0.075 10
2.55 0.075 5
2.55 0.050 5
2.55 0.050 2.5
20X - 100X Target Specifications - Ronchi Rulings
Range (lp/mm) Frequency Change (lp/mm)
240 - 600 10
20X - 100X Target Specifications - Linear Microscale
Length (mm) Divisions/mm Microns/divisions
0 - 68.2 20 50

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