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Male Thread M52 Female Thread M49 Manufacturer Midwest Optical Systems
75 Minimum Object Distance 400 mm Front Diameter 51 mm Focus Control Manual Iris Control Manual Flange Back in Air 17
5 Female Thread M37 Manufacturer Midwest Optical Systems
Male Thread M46 Female Thread M43 Manufacturer Midwest Optical Systems
5 mm Angle of View @ 2/3″ 38
Step-Down Adapter M62-M58 Monofocal Format_1/2″ Male Thread M52 Female ThreadStep Down Rings by Midwest Optical Systems (MidOpt) Use smaller diameter filters on lenses with larger diameter filter threads The diameter of the filter or lighting to which step down rings are coupled will be much smaller than the diameter of the lens (often resulting in vignetting) Available sizes: SD27 25. 5 SD82 77 Commonly referred to as a thread adapter Larger diameter thread is male, smaller diameter thread is female. Adapter Properties Male
