Name: Siemens Star Target, 4" x 4", 120 Sectors Photo Paper
SKU: 46-246
Price: C$175.00

Frequency (lp/mm):

0.6112 - 15.28

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Photo Paper

Line Width (mm):

0.033 - 0.818

Number of Sectors:

120.00

Optical Density OD (Average):

>1.6

Pattern Diameter (mm):

62.5

Dimensions (inches):

4 x 4 ±0.004

Thickness (mm):

0.20 ±nominal

Wedge Angle:

3°

Unresolved Core Diameter (mm):

2.5

Note:

Emulsion Coated

NIST Certification:

No

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 235:

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. 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. Star Targets, in the 4” x 4” size, are 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. These targets have a frequency range at target center (lp/mm) of 7.14-229.2.