Step-Down Adapter M55-M48 Male Thread_M52 This lens series has been

This lens series has been discontinued and has been succeeded by the HF25HA-1S

44 mm Rear Principle Point 5

Often mandatory for shorter focal length lenses in order to prevent vignetting

Male Thread M52 Female Thread M55 Manufacturer Midwest Optical Systems

44 mm Chief Ray Angle 3

Step-Down Adapter M55-M48 Male Thread_M52 This lens series has beenStep 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