Step-Up Adapter M25.5-M46Step 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

5SA-1 Technical Specifications:

6 - ƒ/16 Image Size Not Specified Image Circle Diameter Not Specified Imager Format 2/3″ Light Spectrum Visible Resolution (MP) 5 Resolution (Pixel Size) 3

LP920 Near-IR Longpass

5 M27 CU700-27 M30

72 mm Entrance Pupil Position Not Specified TV Distortion (%) 0

Slowly move the airstream over the optical surface at an angle

19 mm Entrance Pupil Position -21

3° Back Focal Length 12

Dimensions (D x L): 51 x 55

Aperture: F1

5 mm Angle of View @ 2/3″ 29

1 mm Angle of View @ 2/3″ 20