Reducing ring for Rusan 3x ocular (M35x0.75)

44 mm, 46 mm, 46.7 mm, 47 mm, 48 mm, 49 mm, 50 mm, 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 56.7 mm, 57 mm, 57.5 mm, 58 mm, 58.4 mm, 59 mm, 60 mm, 60.5 mm, 61 mm, 62 mm, 62.7 mm, 63 mm, 63.5 mm, 64 mm, 65 mm, 66 mm, 67 mm, 68 mm, 71 mm, 72 mm, 80 mm