這支 Nippon Kogaku (Nikon) Nikkor-S.C 8.5cm f/1.5 有兩個問題～
1, 對焦環轉動乾澀不順，將對焦螺紋上舊的油脂清洗乾淨後，以新的潤滑油脂重新潤滑
2, 清潔沾滿油漬的光圈葉片，連同葉片轉盤、固定盤也一併清潔
1, 對焦環轉動乾澀不順，將對焦螺紋上舊的油脂清洗乾淨後，以新的潤滑油脂重新潤滑
2, 清潔沾滿油漬的光圈葉片，連同葉片轉盤、固定盤也一併清潔
This Nippon Kogaku (Nikon) Nikkor-S.C 8.5cm f/1.5 came with two problem~
1, Solving the Stiff focusing ring. Lubricating the focusing helicoids by cleaning the original old and dry grease then applying new grease to make it works smooth.
2, Cleaning the oily aperture blades and their rotating/fixed plates. There should be no oil stains on the aperture/diaphragm structure, cleaning is necessary.
1, Solving the Stiff focusing ring. Lubricating the focusing helicoids by cleaning the original old and dry grease then applying new grease to make it works smooth.
2, Cleaning the oily aperture blades and their rotating/fixed plates. There should be no oil stains on the aperture/diaphragm structure, cleaning is necessary.
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