Step-Up Adapter M37-M43Step 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

RA060-52 Rotating Right Angle Attachment

0mm EXT-100

0mm EXT-50

Kit Includes

resulting in degraded performance

Male Thread M25

99 mm TV Distortion (%) -0

5 Minimum Object Distance 200 mm Front Diameter 39 mm Focus Control Manual Iris Control Manual Flange Back in Air 17

16 mm Chief Ray Angle 8

1 Operating Temperature Range -10 to +50°C Dimensions 29 mm × 29 mm × 41

5 mm Angle of View @ 2/3″ 10

Male Thread M72 Female Thread M82 Manufacturer Midwest Optical Systems