Step Down Rings

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

Midwest Optical SD72-62