Male thread: M48X0.75; Female thread: M48X0.75; eliminates a range of focusing problems
Male thread: M48X0.75; Female thread: M48X0.75; eliminates a range of focusing problems
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
Fits in 2inch telescope focusers; and accepts 2inch eyepieces or accessories; threaded for use with standand 2Inch astrophotography filters
Features two locking thumbscrews to secure any inserted astronomy accessory; with a brass compression insh to prevent the marring of your telescope accessories