SMC PENTAX-A* 85mm f/1.4 後膠合鏡組脫膠/離膠 重新黏合 Re-cementing treatment for rear cemented lens group separation

這支SMC PENTAX-A* 85mm f/1.4的後膠合鏡組出現了脫膠/離膠的問題。 

這款鏡頭就只有後鏡組有一膠合鏡組，它只要出現脫膠/離膠，樣子就如下面照片中出現的，鏡片周圍一圈分離狀，有時中間還會有些許薄霧。

這問題只需按照標準處理步驟，便可將之恢復，讓鏡頭看起來跟原本無損一樣。

The rear cemented lens group of this SMC PENTAX-A* 85mm f/1.4 shows a typical sign of separation this type of lens normally has.

Following the standard re-cementing treatment procedure, the separation problem can be totally resolved without any impact to its optical performance.