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See all 4 Products in Family

Siemens Star Target, 60mm Dia., 72 Sectors Chrome on Glass

Glass Star Target

Stock #58-833

£297.50

Qty 1-4
£297.50

Qty 5
£267.75

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Line Width (mm):

1.1 - 0.002

Number of Sectors:

Optical Density OD (Average):

>3.5

Pattern Diameter (mm):

50.00

Thickness (mm):

1.50 ±0.05

Wedge Angle:

5°

Unresolved Core Diameter (mm):

0.1

Coating:

Physical Vapor Deposition (Chromium Coating)

Diameter (mm):

60.00 ±0.1

Frequency (lp/mm):

0.458 - 229.2

Substrate:

Float Glass

NIST Certification:

Regulatory Compliance

RoHS:

Compliant

Product Family Description

Ideal for Detection of Focus Errors and Astigmatism
Frequency Range at Target Center (lp/mm) 7.14 - 229.2
Available on White Photographic Paper or Chrome on Glass

Star targets are ideal for identifying focus errors, astigmatism, and other aberrations existing in an imaging system. We have several targets to choose from. Our 60mm diameter (#58-832 and #58-833) targets feature an unresolved core of 100μm, and are ideal for high-resolution or high magnification imaging systems. Both targets are chrome on glass. Our 4” x 4” targets, available as chrome on glass (#46-247) or photo paper (#46-246), feature an unresolved core of 2.7mm, and are designed for mid- to low-range spatial frequencies common in macro imaging systems.