INCLUDES ERRATA
This standard specifies the minimum test target elements and theircriteria to be used in determining the uniformity of illumination on thecopyboard of a 35 mm planetary camera.The layout of the test targetand the procedure to be followed in obtaining a uniform density ofmicrofilm images from a planetary camera are established to assist inthe achievement of high quality first-generation silver-gelatinmicrofilm of engineering drawings.
This standard deals exclusively with top-light and does not address theuse of back-light.Sufficient need exists for a test target andprocedure for top-light filming to justify publication without waitingfor the development of a test target and procedure for back-lightfilming.
The test target and procedure developed are designed to complement thatof the camera manufacturer.
- Edition:
- 90
- Published:
- 01/01/1990
- ANSI:
- ANSI Approved
- Number of Pages:
- 14
- File Size:
- 1 file , 820 KB
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