92° Series 17mm Long Eye Relief Waterproof Eyepiece Optical Design_Maksutov-Cassegrain Certified Pre-Owned Refurbished

Certified Pre-Owned Refurbished

while the retractable dew shield enhances portability

and the collapsible tabletop tripod is perfect for long viewing sessions

Great for indoor or outdoor play

H-Beta and Oxygen-III fog emission lines and achieves a maximum transmission of up to 90%

92° Series 17mm Long Eye Relief Waterproof Eyepiece Optical Design_Maksutov-Cassegrain Certified Pre-Owned RefurbishedExplore Ultra Wide Eyepieces Comfort, Quality, Value. The Explore Scientific 92 Series eyepieces are hyper wide class oculars with extraordinary long eye relief 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 92 Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an