1.
rangefinder; distance-measuring device
An instrument that measures the distance to a target, used in photography, surveying, golf, and similar fields. Modern versions are often laser-based.
Formed from 距離 (distance) plus the suffix 計 (meter, gauge), which appears in many instrument names such as 温度計 (thermometer) and 体重計 (scale).
Common collocations
Usage
In camera terminology, 距離計 refers specifically to the rangefinder focusing mechanism; such cameras are called 距離計カメラ (rangefinder cameras).
Related Words
Related:
速度計 (speedometer)