This metal 3 x barlow lens has fully multi-coated lens provide a sharp view.It can double the power of any 1.25 in telescope eyepiece. Ideal for high power observation. A brass compression ring can protect your eyepiece from marring or scratching the barrel, keeping your eyepiece in new looking.
- 2-element optics are fully multi-coated.
- The edges of the lenses are blackened to cut down on internal reflections.
- The 1.25 in barrel will fit in standard 1.25 in focuses and diagonals.
- Internal brass ring that the set screw hits to hold your 1.25 in eyepiece inside for eliminates marks on your eyepiece barrel.