Early Access Step-up Adapter M67-m72 System [B3VfAwes]

Step-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 lens).

Smaller diameter thread is male, larger diameter thread is female.

Adapter Properties

Step-Up Ring Downloads