這次有脫膠離膠問題的是位在光圈葉片後的膠合鏡組，它也是這款鏡頭最常出問題的鏡組，不過只需要正確的處理過程，就可以將這個問題完美的修復。
這支FD24/1.4L除了有膠合鏡組脫膠的問題之外，其他的鏡片有明顯的薄霧和油霧，光圈葉片也有油漬需要清洗。 全部鏡片和整個光圈組都拆解出來，徹底清潔乾淨，就可以讓把這支鏡頭的問題都解決，讓它恢復到最好的狀態！
This Canon FD 24mm f/1.4 L lens came in with one of the common issue for this model: doublet elements separation in the rear cemented lens group. I've successfully fixed this problem on several FD 24/1.4L lenses, and this time I made sure to take a clearer and more complete record of the repair.
The cemented group with the elements separation issue is located behind the aperture blades— this group that most commonly has problems in this lens. But honestly, with the right process, I can get this problem fixed up perfectly.
Besides the cement separation, this FD 24/1.4L also had a noticeable haze and oil film on the other glasses, and the aperture blades are oily and need cleaning. By fully disassembling all the lens elements and the entire aperture unit for thorough cleaning, all the issues with this lens can be resolved, restoring it to its best possible condition!
The cemented group with the elements separation issue is located behind the aperture blades— this group that most commonly has problems in this lens. But honestly, with the right process, I can get this problem fixed up perfectly.
Besides the cement separation, this FD 24/1.4L also had a noticeable haze and oil film on the other glasses, and the aperture blades are oily and need cleaning. By fully disassembling all the lens elements and the entire aperture unit for thorough cleaning, all the issues with this lens can be resolved, restoring it to its best possible condition!
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