Step-Down Adapter M34-M30.5 ƒ/N Max_ƒ/2.3 0° Back Focal Length 16

0° Back Focal Length 16

526 mm Exit Pupil Position -123

Step-Down Rings by Midwest Optical Systems (MidOpt)

21 mm Distance Between Principle Points -16

45 μm Weight 95 Grams Mount C-Mount Filter Thread M30

Step-Down Adapter M34-M30.5 ƒ/N Max_ƒ/2.3 0° Back Focal Length 16Step 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