100° Series 9mm Waterproof Eyepiece cases The hinged ring system separates

The hinged ring system separates easily by loosening the oversized metal thumbscrews

Coatings EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces

and bright deep-sky objects

high resolution

100° Series 9mm Waterproof Eyepiece cases The hinged ring system separatesExplore Ultra Wide Eyepieces Comfort, Quality, Value. The Explore Scientific 100 Series eyepieces are hyper wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 100 Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is