LEICA SUMMILUX-M 50mm f/1.4 E46 Pre-A 修復膠合鏡組霧狀脫膠離膠 Fixing hazy elements separation

這支LEICA SUMMILUX-M 50mm f/1.4 E46 Pre-A 的後內膠合鏡組有明顯的霧狀脫膠離膠的問題。 經過標準的重新黏合程序，便可以順利的將問題解決，讓鏡片恢復乾淨通透

脫膠離膠 是一個可以被完全修復的問題，鏡頭修復後的表現也會跟原本鏡頭一樣，不會有差異

霧狀的脫膠離膠，是這款LEICA SUMMILUX-M 50mm f/1.4 E46 Pre-A的通病，如果您有這款鏡頭，可以在檯燈下檢查看看內部鏡片是否有霧，也可以將鏡頭接上相機，在前方有光源的情境之下拍幾張照片，檢視光源周圍是否有朦朧的光暈溢出，如果有明顯的光暈在光源周邊，您的鏡頭很可能就有這樣的問題

請參考最後兩張這支鏡頭維修前後的試拍照，這兩張試拍照的相機設定都一樣。我特別在試拍場景中放置了幾盞對著 鏡頭和相機 照過來的燈源，模擬逆光拍照的環境。 鏡頭如果有明顯的霧，在逆光環境之下拍出來的照片 會有霧矇矇的，特別在光源周邊特別明顯，鏡片越霧越明顯；相反的，如果鏡片乾淨通透，拍出來的照片也會乾淨明亮，光源周圍只會有很輕微的溢光，整體色彩表現是乾淨的，也會有足夠的色彩反差與飽和度！

如果你的鏡頭有類似的問題，歡迎直接跟我聯絡！

The rear internal cemented doublet of this LEICA SUMMILUX-M 50mm f/1.4 E46 Pre-A shows a noticeable fogging issue due to elements separation. This problem can be totally resolved through a standard re-cementing procedure, restoring the lens back to a clean and clear condition.

The elements separation is an issue that can be completely repaired, and after the lens is restored, its performance will be identical to its original, with no differences.

The foggy separation is a common issue with this model LEICA SUMMILUX 50mm f/1.4 E46 Pre-A. If you own this lens, you can check under a desk lamp to see if there is any fog inside the lens. Additionally, you can attach the lens to a camera and take a few test in a situation where there is a light source in front. Examine the images for any hazy halos around the light source; if there is a noticeable halo around the light source, your lens may likely have this issue.

Please refer to the last two test shots of this lens taken before and after repair. The camera settings for both test shots are the same. I specifically included several light sources directed at the lens and camera in the test scene to simulate a backlighting environment. If the lens has significant fog, photos taken in this backlighting condition will exhibit fogging, particularly noticeable around the light source — the fogginess becomes more pronounced with increased haze. Conversely, if the lens is clean and clear, the resulting photos will also be clean and bright, with only a slight flare around the light source, and the overall color performance will be clear, exhibiting sufficient color contrast and saturation!

If your lens has a similar issue, feel free to contact me directly!