Step-Up Adapter M55-M58Step 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

MidOpt EXT-15

Sensor Compatibility:

PR032-27 Linear Polarizer Filter

Product Line / Series HF-XA-5M Lens Type Fixed Focal Length IP Rating Not Specified Focal Length 50 mm ƒ/N ƒ/2

Male Thread M72 Female Thread M58 Manufacturer Midwest Optical Systems

4 - f/16 HF35HA-1B

BP800 Near-IR Bandpass (745-950nm)

LP715 Near-IR Longpass

45 μm Weight 240 Grams Mount C-Mount Filter Thread M49-0

3 - f/22 HF75HA-1B

71 mm Entrance Pupil Position -36

526 mm Exit Pupil Position -107