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

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Material:   Transmission Material
Overall Size:   1.38 in. x 3.35 in. 
     (35mm x 85mm)
Image Area:   20mm x 30mm
Steps:   24
Step Size:
   5mm x  5mm

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.


Additional Information:  ST-53_spec_v1-06.pdf