Step-Down Rings
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Midwest Optical SD72-62
- Step-Down Ring
- from M72 x 0.75 To M62 x 0.75
- 75 mm Outer Diameter
- 61.3 mm Clear Aperture
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Midwest Optical SD72-55
- Step-Down Ring
- from M72 x 0.75 To M55 x 0.75
- 75 mm Outer Diameter
- 54.3 mm Clear Aperture
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Midwest Optical SD72-46
- Step-Down Ring
- from M72 x 0.75 To M46 x 0.75
- 74.5 mm Outer Diameter
- 45 mm Clear Aperture
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Midwest Optical SD67-62
- Step-Down Ring
- from M67 x 0.75 To M62 x 0.75
- 70 mm Outer Diameter
- 61 mm Clear Aperture