Step-Down Adapter M46-M37Step 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

Cleaning Tips

4 µm pixel pitch)

18 mm TV Distortion (%) -0

45 μm Weight 100 Grams Mount C-Mount Filter Thread M37

Metal mount with high durability and accuracy (C-mount)

5 mm Angle of View @ 2/3″ 58

IK100 Filter Sizes & Part Numbers

Extension Rings are used to decrease the Minimum Object Distance (MOD) for C/CS mount lens

MidOpt EXT-30

Male Thread M72 Female Thread M67 Manufacturer Midwest Optical Systems

526 mm Exit Pupil Position -37

Product Line / Series CF-HA Lens Type Fixed Focal Length IP Rating Not Specified Focal Length 12