Safety kerfs

Sky at Night Magazine - - FIRST LIGHT -

Although not unique to this range of eye­pieces, WKH OHQV EDUUHOV RI WKH 8OWUD DWV KDYH EHHQ PDFKLQHG with mul­ti­ple grooves ev­ery 2mm. These are known as ‘safety kerfs’ and they pro­vide an ex­cel­lent grip for the com­pres­sion rings found on most mod­ern eye­piece hold­ers, while ob­vi­at­ing the risk of snag­ging.

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