Step-Up Adapter M49-M52 ƒ/N Max_ƒ/2.8 3° Front Principle Point -1

3° Front Principle Point -1

03 Operating Temperature Range -10 to +50°C Dimensions 33 mm × 33 mm × 52

3° Back Focal Length 12

Male Thread M49 Female Thread M37 Manufacturer Midwest Optical Systems

Swivellink SLM-SB-12

Step-Up Adapter M49-M52 ƒ/N Max_ƒ/2.8 3° Front Principle Point -1Step 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