52° Series 3mm Waterproof Eyepiece moon then screw in the bolt

then screw in the bolt

the CF350 is your gateway to stargazing

With its impressively long eye relief of 16

Because your telescope may not fit in its case with the finder-scope attached

With its diffraction-limited optics

52° Series 3mm Waterproof Eyepiece moon then screw in the boltA new focal length joins the Explore Scientific line of inert gas purged Waterproof Eyepieces with the 3mm 52 Series Eyepiece. A logical companion for the grab and go ED80mm f 6 Air Spaced Triplet, this eyepiece produces 160X which will perform very well with good seeing conditions. On the ED152 at f 8, 405X is achieved without the use of a Focal Extender or Barlow for those nights of near perfect seeing, with a very comfortable 15mm of eye relief.