8x21 Foldable Roof-Prism Binoculars 18-4mm-eye-relief Covering a broad range of

Covering a broad range of northern hemisphere latitudes

Among other features ExploreStars offers both 2-star and 3-star alignment procedures

The rugged 2" rack-and-pinion focuser includes two extension tubes for precise focusing

The 8x magnification offers a stable viewing experience with a wider field of view

Then there is the problem that a observatory building needs a permanent site that is suitable for an observatory

8x21 Foldable Roof-Prism Binoculars 18-4mm-eye-relief Covering a broad range ofThese pocket binoculars have a compact and attractive design. The fully coated BK 7 optics and solid mechanics enable a true color picture replication. These models have diopter compensation and foldable eyepieces for spectacle wearers as well as a functional bag.