LEICA LEITZ ELMARIT-M 28mm f/2.8 III 鏡片清潔 對焦環重新潤滑 Cleaning glasses, Focusing-ring CLA. A general maintenance

這支送來處理的 Leica M 28/2.8 III 主要有下列兩項的問題～

1. 鏡片髒污起霧
2. 對焦環轉動不順需要重新潤滑。

This Leica M 28/2.8 III has the following two problems that need to have a general maintenance~

1. The glasses have heavy fog and dirts that need a cleaning.
2.  The focusing-ring does not work smooth and need to be lubricated.