92° Series 17mm Long Eye Relief Waterproof Eyepiece Optical Design_Maksutov-Cassegrain the included USB eyepiece lets

the included USB eyepiece lets you connect the microscope directly to your computer

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

while the retractable dew shield enhances portability

Your time would be reduced if you are using the USB port to charge a phone or other device

delivering exceptional chromatic aberration correction and true-to-life color fidelity comparable to the renowned Ohara FPL-53 glass

92° Series 17mm Long Eye Relief Waterproof Eyepiece Optical Design_Maksutov-Cassegrain the included USB eyepiece letsExplore 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