Step-Up Adapter M46-M55Step Up Rings by Midwest Optical Systems (MidOpt) Use larger diameter filters on lenses with smaller diameter filter threads Often mandatory for shorter focal length lenses in order to prevent vignetting Available sizes: SU22. 5 25. 5 SU77 105 Commonly referred to as a thread adapter Step Up Rings are most commonly used to adapt a larger diameter thread on items such as ring lights and filters to a smaller diameter thread (generally the thread on the

87 mm Entrance Pupil Position -19

0mm EXT-100

Male Thread M46 Female Thread M58 Manufacturer Midwest Optical Systems

12 mm TV Distortion (%) -0

36 mm Chief Ray Angle 6

Made In Japan

A Cleaner + Cloth and Microfiber Cloths are also available for in the lab or on the go

Product Line / Series HF-12M Lens Type Fixed Focal Length IP Rating Not Specified Focal Length 16 mm ƒ/N ƒ/1

41 mm TV Distortion (%) 0

5-27 Step-Down Adapter

5HA-1 Technical Specifications:

53° Front Principle Point -40