這支 Nikon Fisheye-NIKKOR 16mm f/3.5 ai 的後鏡組有脫膠離膠的問題，看起來是很嚴重的白霧狀膠合變質。這個有脫膠離膠的鏡組是被密封在金屬框裡，用工具切除包框取出鏡片後，按照標準的脫膠離膠重新黏合處理的程序，便可以將這問題解決。 處理完成後，再將鏡片密封回鏡框中便完成這次的維修。
This Nikon Fisheye-NIKKOR 16mm f/3.5 ai had an elements separation on its rear lens group, this glue deterioration made the doublet looks very hazy.
The doublet was embedded in the metal frame, the first step was to use specific tool to cut off the thin metal to take out the lens safely. Then fix the problem by following the standard re-cementing procedure.
The final step was to enclosed the lens back to the metal frame. The result was perfect!
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