LEICA LEITZ SUMMILUX 35mm f/1.4 pre-A 前膠合鏡組脫膠離膠重新黏合 Re-cementing treatment for front cemented lens group separation

這支 M35/1.4 pre-A 的前膠合鏡組出現這款鏡頭典型的脫膠/離膠的問題需要重新黏合，另外，其他鏡片有些薄霧髒污也需要清潔。
這款鏡頭有兩組膠合鏡組，分別在光圈葉片前後兩邊，這兩組都有蠻高的機率會出現脫膠/離膠的問題，本次這支鏡頭是前膠合鏡組。
這組膠合鏡組是鑲在金屬框裡，必須使用特殊工具，將金屬包邊切除，才能將鏡片取出做後續的處理。
脫膠/離膠的問題，透過標準的處理程序 "分離鏡片、清除殘膠、對心重新黏合" 就可以完美的解決。

This M35/1.4 pre-A receive a re-cementing treatment to restore the problem of front cemented lens group separation. Beside that, some dirts and fog on the other glasses and need a cleaning.
M35/1.4 pre-A has two cemented lens group that located anterior and posterior to the aperture blades, and both group may have high probability to suffer from separation. This case shows separation to it's front cemented group only.
The target lens group was imbedded in the metal stand, and needs a specific tool to cut off the metal frame to take out the lens for re-cementing treatment.
The separation issue can be perfectly resolved by following the standard treatment procedure "taking apart the lens group, cleaning residual glue, re-cementing under precise collimation".