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

The ST-53-1 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.

Additional Information:

ST-53 Spec Sheet

Additional information

Billable Weight: 2 lbs

Transmission Material

Overall Size

1.38 in. x 3.39 in. – 35mm x 86mm

Number of Steps


Density Range

0.10 to 4.0

Active Image Area

20mm x 30mm

Step Size

5mm x 5mm