Leica Leitz Summicron 5cm f/2.0 Rigid 前鏡片表層嚴重損傷拋光處理 Front glass surface serious damage restoration by polishing treatment

這支 M50 Rigid 的第一片鏡片嚴重損傷，需要拋光處理讓它恢復乾淨通透
這片鏡片的損傷包含兩個主要的原因，一是玻璃本身老化變質，造成玻璃表現有明顯的點狀凹痕；二是嚴重磨損擦拭傷痕
雖然許多傷是有傷及玻璃，但都還是很淺層，在容許值內，可以以拋光處理。
透過傳統拋光工序處理後，鏡片上的傷大多都被拋除，鏡片恢復乾淨透亮，確實能讓受損嚴重的鏡頭重新復活！
請見以下拋光前、後的實拍測試照片，可以清楚看到天差地別的效果

The main problem of this lens is the serious damage on the front glass. For this lens, the damage comes from two factors. The one is natural process called "aging or glass deterioration", that makes the glass full of tiny dots/pits. The other one is man-made damage, such as improper cleaning that makes large area abrasion or long and deep scratches.
Fortunately, most of the damages are on the superficial surface of the front glass, and can be removed by precise polishing technique.
The result is positive as you can see in the following photos, most of the marks on the front glass were removed! The sample images were taken by this lens with Sony A7R before and after the receiving polishing treatment.