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
| Brands | Model | Stock status | Step To | Step From | Clear Aperture | Outer Diameter |
|---|---|---|---|---|---|---|
| Midwest Optical | SD72-62 | On backorder | M62 x 0.75 | M72 x 0.75 | 61.3 mm | 75 mm |
| Midwest Optical | SD72-55 | On backorder | M55 x 0.75 | M72 x 0.75 | 54.3 mm | 75 mm |
| Midwest Optical | SD72-46 | On backorder | M46 x 0.75 | M72 x 0.75 | 45 mm | 74.5 mm |
| Midwest Optical | SD67-62 | On backorder | M62 x 0.75 | M67 x 0.75 | 61 mm | 70 mm |
| Midwest Optical | SD67-55 | On backorder | M55 x 0.75 | M67 x 0.75 | 54.3 mm | 68.7 mm |
| Midwest Optical | SD62-58 | On backorder | M58 x 0.75 | M62 x 0.75 | 57.3 mm | 64 mm |
| Midwest Optical | SD62-55 | On backorder | M55 x 0.75 | M62 x 0.75 | 54.3 mm | 64 mm |
| Midwest Optical | SD62-52 | On backorder | M52 x 0.75 | M62 x 0.75 | 51.2 mm | 64 mm |
| Midwest Optical | SD62-46 | On backorder | M46 x 0.75 | M62 x 0.75 | 45 mm | 64 mm |
| Midwest Optical | SD58-55 | On backorder | M55 x 0.75 | M58 x 0.75 | 54.3 mm | 60 mm |
| Midwest Optical | SD58-52 | On backorder | M52 x 0.75 | M58 x 0.75 | 51.2 mm | 60 mm |
| Midwest Optical | SD58-46 | On backorder | M46 x 0.75 | M58 x 0.75 | 45.3 mm | 60 mm |
| Midwest Optical | SD55-52 | On backorder | M52 x 0.75 | M55 x 0.75 | 51.2 mm | 56.8 mm |
| Midwest Optical | SD55-49 | On backorder | M49 x 0.75 | M55 x 0.75 | 48.3 mm | 57.4 mm |
| Midwest Optical | SD55-46 | On backorder | M46 x 0.75 | M55 x 0.75 | 45.3 mm | 57 mm |
| Midwest Optical | SD52-49 | On backorder | M49 x 0.75 | M52 x 0.75 | 48.3 mm | 54 mm |
| Midwest Optical | SD52-46 | On backorder | M46 x 0.75 | M52 x 0.75 | 45.3 mm | 54 mm |
| Midwest Optical | SD49-46 | On backorder | M46 x 0.75 | M49 x 0.75 | 45.3 mm | 51 mm |
| Midwest Optical | SD46-40.5 | On backorder | M40.5 x 0.5 | M46 x 0.75 | 39.7 mm | 49.8 mm |
| Midwest Optical | SD34-30.5 | On backorder | M30.5 x 0.5 | M34 x 0.5 | 30 mm | 36 mm |
| Midwest Optical | SD30.5-27 | On backorder | M27 x 0.5 | M30.5 x 0.5 | 26.3 mm | 33.4 mm |
| Midwest Optical | SD27-25.5 | On backorder | M25.5 x 0.5 | M27 x 0.5 | 22.5 mm | 29.5 mm |