Step-Down Adapter M49-M46Step 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

CU700-37 Close Up Lens

and includes all MidOpt Visible Neutral Density Filters

Fujinon HF9HA-1B Series Lens Features

5 - SD82-77

2" Compatible 1" Compatible 1

45 μm Weight 305 Grams Mount C-Mount Filter Thread M49-0

27mm threaded mount filters

Male Thread M62 Female Thread M49 Manufacturer Midwest Optical Systems

526 mm Exit Pupil Position -42

27 mm TV Distortion (%) -2

3 - f/22 HF75HA-1B

making this an excellent starter kit