Step-Down Adapter M67-M55Step 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

Since it’s contact-free

Male Thread M67 Female Thread M72 Manufacturer Midwest Optical Systems

STEP ADAPTER RINGS

Supports Sensor Sizes up to 1

1° Back Focal Length 21

If further cleaning is required

HF50SA-1 suggested replacement is HF50XA-5M

4 - ƒ/16 Image Size Not Specified Image Circle Diameter Not Specified Imager Format 1

BP505 Cyan Bandpass (485-550nm)

89 mm Chief Ray Angle 2

Swivellink AFSB-520XS-C-DMIC

BANDPASS FILTERS