ISO-21550 Dynamic Range Film Target (ST-53)

This target conforms to International Standard ISO 21550, “Electronic Scanners for Photographic Images – Dynamic Range Measurement”.

The ST-53 is available in two different target configurations; ST-53-1-TM has 0.1 to 4.0 Optical Densities which are appropriate for imaging media associated with direct visual viewing situations such as photographic slides or paper prints; and ST-53-2-TM has 0 to 6.0 Optical Densities which are appropriate for intermediate imaging media such as negatives.