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These adapters allows use of 1¼" eyepieces in any 2" focuser or diagonal.
All models feature brass clamp ring or nylon-tipped set screw for secure, no-mar locking and safety
undercut.
Note: We purposely do not put 2" filter threads in 2" to 1¼"
adapters. The reason is to avoid your getting upset when you insert a 1¼" Barlow
and it crunches your expensive 2" filter. Safety first.