Last Updated：2025/11/29
A simplified focusing mechanism for amateur telescopes, having a smooth spring-loaded shaft which holds the focus tube against four opposing bearing surfaces, and controls its movement.
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Crayford focuser
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Source Word
Crayford focuser
Noun
Japanese Meaning
アマチュア望遠鏡用の簡易焦点調整機構。滑らかなバネ式シャフトが焦点管を四方向の軸受面に対して押さえ、動きを制御する仕組み。
（ plural ）
