![80x100 HD Monocular Telescope for Adults Kids, High Power Compact Waterproof Monocular with BAK4 Prism Scope, Night Vision, Phone Adapter, Tripod, Hand Strap for Bird Watching Camping Hiking Concert - Walmart.com 80x100 HD Monocular Telescope for Adults Kids, High Power Compact Waterproof Monocular with BAK4 Prism Scope, Night Vision, Phone Adapter, Tripod, Hand Strap for Bird Watching Camping Hiking Concert - Walmart.com](https://i5.walmartimages.com/asr/5624984a-c85b-425a-a57c-85343160112b.171525d22f9053e776fd1b7ac0117614.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
80x100 HD Monocular Telescope for Adults Kids, High Power Compact Waterproof Monocular with BAK4 Prism Scope, Night Vision, Phone Adapter, Tripod, Hand Strap for Bird Watching Camping Hiking Concert - Walmart.com
![80x100 HD Monocular Telescope for Adults with Smartphone - High Power Monocular with Adapter Lightweight BAK-4 Prism & FMC Lens Monoculars for Bird Watching Stargazing Hunting Camping Hiking Travel Green-mm 80x100 HD Monocular Telescope for Adults with Smartphone - High Power Monocular with Adapter Lightweight BAK-4 Prism & FMC Lens Monoculars for Bird Watching Stargazing Hunting Camping Hiking Travel Green-mm](https://www.gosupps.com/media/catalog/product/cache/25/image/1500x/040ec09b1e35df139433887a97daa66f/7/1/71YoY87LkVL._AC_SL1500__1.jpg)
80x100 HD Monocular Telescope for Adults with Smartphone - High Power Monocular with Adapter Lightweight BAK-4 Prism & FMC Lens Monoculars for Bird Watching Stargazing Hunting Camping Hiking Travel Green-mm
![Celestron-High Power Ocular Full Multi Coated Lens, 7 to 21mm, 1.25 Inch, 6 Element, 4 Group Zoom Lens, Telescope Accessory Celestron-High Power Ocular Full Multi Coated Lens, 7 to 21mm, 1.25 Inch, 6 Element, 4 Group Zoom Lens, Telescope Accessory](https://ae01.alicdn.com/kf/Sc7f704f2c1fb4e959b0a1d821f96d128v/Celestron-High-Power-Ocular-Full-Multi-Coated-Lens-7-to-21mm-1-25-Inch-6-Element.jpg)
Celestron-High Power Ocular Full Multi Coated Lens, 7 to 21mm, 1.25 Inch, 6 Element, 4 Group Zoom Lens, Telescope Accessory
![Ocular lenses, explained by RP; eyepiece, barrel, magnification, focal length, exit pupil, field of view, eye relief, designs Ocular lenses, explained by RP; eyepiece, barrel, magnification, focal length, exit pupil, field of view, eye relief, designs](https://www.rp-photonics.com/previews/ocular_lenses.png)
Ocular lenses, explained by RP; eyepiece, barrel, magnification, focal length, exit pupil, field of view, eye relief, designs
![ToopMount Eye Piece Cover Flexible for 40mm Ocular Lens Rifle Scope Rubber Recoil Extender Optics Cover Long Flat Eye Cover Eyecup Protector Anti-Impact Telescope Eyeshade ToopMount Eye Piece Cover Flexible for 40mm Ocular Lens Rifle Scope Rubber Recoil Extender Optics Cover Long Flat Eye Cover Eyecup Protector Anti-Impact Telescope Eyeshade](https://m.media-amazon.com/images/I/6174IctwXgL._AC_SL1500_.jpg)