Step-Up Adapter M77-M105 Format Monofocal_1/1.2″ HF75SA-1 Technical Specifications:

HF75SA-1 Technical Specifications:

Available sizes: SD27-25

73 mm TV Distortion (%) -0

Smaller diameter thread is male

Step-Up Adapter M77-M105 Format Monofocal_1/1.2″ HF75SA-1 Technical Specifications: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