Astro-Berlin C Gauss-Tachar 75mm f/2 前、後鏡片滿滿刮痕拋光 Polishing for the front and the rear elements, full of scratches

這支 Astro-Berlin C Gauss-Tachar 75mm f/2 的前、後鏡片的外側面都有滿滿的刮痕，相當嚴重，會影響實際拍攝的成像表現。 取出鏡片之後，依照傳統拋光技法仔細拋光之後，鏡片恢復乾淨通透，成像品質也恢復正常。 請見最後兩張照片，拋光前、後的實拍對比，可以看到有顯著的差異

The outer surfaces of both front and rear lens elements were full of scratches on this Astro-Berlin C Gauss-Tachar 75mm f/2 lens. The scratches did affect the image quality. The only way to save this lens is to make a polishing treatment. After polishing, the lens elements look clean and clear again. Please check the last two testing images taken before and after the polishing. As you can see, there is a significant improvement after polishing!