Two Effective Methods of Optical Transfer Testing

When ISO/TCI72/SC1/WG1, the standards committees working on optical testing, started writing standards in the early 1980s, the work was concerned almost exclusively with optical transfer (OTF) testing of optical systems. Now that the other subcommittees in TC172 are beginning to write performance standards for various tests of optical instruments, there has been a mindset to write resolution standards in terms of the OTF because, among other things, an ISO standard exists for making these measurements.

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