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Howard-Dolman Type Test

Item #: HDTEST

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Howard-Dolman Type Test

This is the classic test for depth perception in real space. The test measures the amount of error at any distance of judging the distance of two rods. The test has a scale in minutes of arc (at ten feet) or gives a measurement of error in mm and the formula for any distance.

Includes hood
Made of rigid, high impact ABS plastic for improved durability.

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