PENTAX-M 1:1.4 50mm Cleaningしてみた
22:03
Helios 44-2 fungus cleaning tutorial
21:34
Restoration of old treasure vintage lens - Pentax SMC 50mm f/1.4
8:53
SMC Pentax-M 50mm F1.4 infinity focus calibration.
15:52
펜탁스 50mm 1.4렌즈 분해 영상(smc PENTAX-A 50mm F1.4 Lens repair)
7:39
The smc pentax 50mm f1.4 vintage lens, is it a keeper?.
8:10
How to Clean a Vintage Lens with a Huge Fungus Infection
6:02
Pentax smc Pentax-M 28mm f2.8【分解洗浄編】
31:29