PRODUCT
Depth Of Field Ruler
DEPTH OF FIELD RULER

Depth-of-field ruler features: can standardize the measurement optical tolerances, it can accurately determine the target offset when an unacceptable image is produced, and it is a common tool used for industrial lens depth testing.

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product description:
1. Visually evaluate the depth of field of the lens;
2. No calculation is required, and the value can be read directly.


main feature:
The measurement optical tolerance can be standardized, it can accurately determine the target offset when an unacceptable image is produced, and it is a common tool used for industrial lens depth testing.