OLYMPUS OM ZUIKO 90mm f/2.0 MACRO 鏡片清潔對焦環潤滑 Cleaning the glasses, Lubricating the focusing helicoids

這支 OLYMPUS OM ZUIKO 90mm f/2.0 MACRO 鏡片有明顯白霧以及入塵需要清潔，對焦環轉動也不順暢 手感不佳。 完全拆解 基本的清潔保養。

This OLYMPUS OM ZUIKO 90mm f/2.0 MACRO had haze and dust on the surfaces of the internal elements, the focusing ring/focusing helicoids worked hard and not smooth. Full disassembling for general cleaning and maintenance.