Step down adapter for M82 lens threads and M77 filter threads enables use of larger filters
Prevents vignetting by ensuring correct filter sizing for shorter focal length lenses
Available in multiple sizes for versatile compatibility
Durable construction for reliable industrial use
Summarized by Shop
Midwest Optical Systems SD82-77 Step-Down Adapter M82-M77 Step Adapters - Step-Down Step adapter part numbers are made up of the lens thread size in mm and the filter size in mm. Ex: SU25.5-27; M25.5 (lens thread), M27 (filter thread)
Step-Up Rings
Use larger diameter filters on lenses with smaller diameter filter threads
Often
