LEICA ELMARIT-M 21mm f/2.8 ASPH. 修復膠合鏡組脫膠離膠問題 Fixing the doublet elements separation

這支 LEICA ELMARIT-M 21mm f/2.8 ASPH. 的後內膠合鏡組有脫膠離膠的問題，依照照片中的處理程序，便可將問題順利解決，讓鏡頭狀況恢復完全復原。 修復膠合鏡組脫膠離膠不是一件容易的事，如果您的鏡頭有類似的問題想要解決，歡迎跟我聯繫！

The rear internal lens group of this LEICA ELMARIT-M 21mm f/2.8 ASPH. had an issue of doublet elements separation. The problem can be completely solved by following the steps show in the attached images. Fixing elements separation is not an easy task, Please contact me if your lens has similar issue and want to solve it.