它前後個有一組膠合鏡組，都是三片一組黏合在一起。這支出現脫膠/離膠問題是發生在前膠合鏡組。
三片黏合在一起，有兩個膠合面，脫膠/離膠發生在第一第二片鏡片間的膠合層。處理這種三片一組的膠合鏡組脫膠/離膠時，也是必須把三片鏡片都分開在重新黏合，目前還沒有辦法單純只處理其中一個膠合層，而不需全部分離。不過對這種三組一片的鏡組，過一陣子應該會有比較成熟的技術可以單純只分離兩層膠合層的其中一層。
This lens got a balsam separation to its front cemented triplet group, and need a re-cementing treatment.
A triplet has two cementing surface, and the separation happened to one of the surface. The treatment now need to take apart all three glasses apart , then re-cementing again to resolve the balsam issue. A new technic I created may come within two month which can apply to the triplet to take apart only one cemented surface to resolve the problem.
Zeiss-Opton Sonnar 50mm f/1.5 脫膠/離膠的問題，請參考這個case
The Balsam separation to Zeiss-Opton Sonnar 50mm f/1.5, please refer this case~
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