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Micro Multi Slide Dot Pattern and Checkerboard chart
A 100mm (4\") square glass slide lithographically produced with low-density chrome at a 10:1 contrast ratio.
Detail information
Checkerboard Charts
|
Zone |
Square Size |
Dimensions |
Distortion Crossing Points HxV |
|---|---|---|---|
|
Low |
4.000 mm |
54.2 x 40.0 mm |
13 x 9 |
|
Medium |
2.000 mm |
27.2 x 23.3 mm |
13 x 11 |
|
High |
1.000 mm |
27.2 x 16 mm |
27 x 16 |
Dot Pattern Charts
|
Zone |
Dot Spacing |
Dot Diameter |
Dimensions |
Dots HxV |
|---|---|---|---|---|
|
Low |
2.000 mm |
0.640 mm |
54.2 x 40.0 mm |
27 X 20 |
|
Medium |
1.000 mm |
0.320 mm |
27.2 x 23.3 mm |
27 X 24 |
|
High |
0.500 mm |
0.160 mm |
27.2 x 16 mm |
32 x 53 |
Testing Images With Imatest
For an example of a macro lens test with this target, see Testing a macro lens using Checkerboard and Micro Multi-slide.
Using Imatest 4.5, the checkerboard region can be analyzed using the Checkerboard module. The dot pattern analysis module has been available since 2011 Release 3.8.
For older versions of Imatest, you can use the distortion module to calculate distortion from the checkerboard, but this is not as resistant to fisheye distortion as what is available with the Checkerboardmodule of Imatest 4.5.
