LEICA ELMARIT-R 19mm f/2.8 II 膠合鏡組脫膠離膠重新黏合 全鏡片清潔 Re-cementing for elements separation, Full lens elements cleaning

這支 LEICA ELMARIT-R 19mm f/2.8 II 送來的時候有以下三個問題～
1, 內建濾色鏡片的轉環動作不正常
2, 鏡片都有髒污、油霧以及發霉
3, 最大的問題是有一個膠合鏡組有霧狀的脫膠離膠的狀況
以上問題都已順利解決！

This LEICA ELMARIT-R 19mm f/2.8 II came with 3 problem~
1, The built-in color filter switching ring worked incorrectly.
2, All elements had dirts, oily vapor and fungus.
3, The major problem of this lens is one of the cemented lens group/doublet had the elements separation.
The above three problems have been successfully solved!