astronomical telescope diagram

10-20x60mm High Magnification Zoom Lens Powerful Monocular Telescope For Mobile Camera Tontube monocular features wide variable range of 10-30x magnification that allows easy targeting and then zoom in for a closer and detailed look! This zoom monocular provides the best view with BAK-4 prism and FMC(fully multi-coated) green coated lens while bird watching, hunting, hiking, camping, traveling, wildlife, scenery, etc. 10-30x60 high magnificationWith 10-30x adjustable magnification and a large 60mm objective, this zoom telescope makes it easy to lock on to the target and zoom in for

Children 8X21 High Definition Telescope Purple Kids Binocular For Exploring Nature  Product Description & ImagesOptical glass with high-definition which is also friendly to kids’ eyes.The BAK-4 prism is fully coated to create sharp and colorful images.Modern design provides comfort for either hand.Symmetrical shape and unique rubber grips give you perfect control and cushioning.Rubber Surrounded Eyepieces provide superior eye protection and children don't hurt their eyes or faces.Shatter-resistant protecting rubber frame, all-round protection for binoculars’ safety.PRODUCT

           Colorful 8x21 Compact Bak4 Prism Kids Binoculars For Outdoor Adventure Educational  SPECIFICATION: Field Guide to Birds Kids Binoculars: Upgrade binoculars for kids have a field guide to birds of North America, has a specific introduction to 30 common birds. Binoculars Design for Kids: The children binoculars have an arouse children's interest in exploring the mysterious scenery in the distance. The rubber coating and Non-slip grip is easy for children to grasp and carry to provide better protection for the binoculars while using. The

Adults Black 10x42 High Definition Binoculars Water Resistant Telescope with BAK4 Prism for Hunting TONTUBE 10x42 High Definition binoculars combine quality, functionality and reliability, perfect for those looking for extremely versatile, high quality, and economically priced optics. It brings the world closer and provides high-resolution images with highly accurate color reproduction. It is a good gadget which enables you to observe targets in a distant world with more true-to-life details.Optical Performance1. Fully Multi-coated Lens : All lens are fully multi-coated, light

   TONTUBNE Compact Bak4 Porro Prism 10x25 Long Eye Relief Binocular For Bird Watching  Introductions of 10x25 BinocularsThese binoculars use high quality prisms to produce clear and precise images. Compact 10x25 binoculars provide clear and colorful high resolution images and excellent light transmission so your kids can enjoy bird watchingThese binoculars have 10x to 25mm magnification, which is a pretty decent rating. The lenses are fully coated, which makes them safer and more comfortable to use, allowing the child to clearly see what the image is.The 10x25

                      Adults Kids 10X25 Folding Compact Binoculars Telescope With Dia 12mm Eyepiece for Hunting SPECIFICATION:  【HIGH-POWERED LARGE EYEPIECE BINOCULARS】 This binoculars has 10x magnification, 25mm objective lens and wide field of view, 380ft/1000yds, letting you look farther and see wider. Coating with FMC Broadband coating and premium BAK4 prism, it ensure imaging verisimilar. 【ADJUSTABLE EYE CUPS FIT EYEGLASS WEARERS OR NOT】The binocs can be pull down the rubber eyepieces and more fit the glasses wearer,

10-30x50 Bak4 FMC Zoom Binoculars Mobile with Good Optic Glasses Images for HuntingDescription  Lower magnification allows the user to locate a subject more easily and then zoom in for a close-up view Multi-coated optics enhances sharpness of detail and crispness of color High quality BaK-4 prisms provide higher light transmission for better viewing in low light conditions Large objective diameter provides a comfortable viewing aperture at high magnification levels Long eye relief for more comfortable for all users; essential for those wearing eyeglasses while viewing Diopter adjustment

 Hollyview 6x25 Golf GPS Range Finder Long Distance Outdoor Laser Rangefinder for HuntingProduct DescriptionWide range of different applications at this special moment-besides providing excellent rangefinders for avid golfers, novice golfers and hunting enthusiasts as usual, it is also an excellent choice for outdoor small game toys in family yards at this special moment. The clear magnification of 6 times makes it applicable to children's monocular telescope. Great accuracy and multiple interesting functions make this rangefinder more valuable than ever before.Easy to use-fast and

 6x25 Laser Optical Sight Rangefinder Binoculars 1000 Yard with Continuous Scanning and Speed Product Description Optics - 6X MagnificationThe 6 X magnification lens makes finding the target simple. View the yardage on the clear, easy-to-read wide LCD display with the ability to adjust the focus with the dioptor. Efficient and Accurate Range Finder PerformanceThe 6x25 rangefinder has a very high accuracy and can provide a practical range of 5 to 1000 m (1093 yards) and a highly reflective target of 1600 yards. It has a powerful 6x optical zoom and a clear lens, making you

High Powered Real 12x50 BAK4 Waterproof Monocular Telescope HD/ED Scope with TripodDescription:【Monoculars for Adults High Powered】high power HD ED monocular telescope equipped with a full 12x magnification and 50mm object lens diameter monocular, provides a super clearly and bright image, just enjoy the best view in your outdoor adventures, bird watching, hunting, hiking, camping, travelling, wildlife scenery, concert, sports, game etc.【High Contrast And Resolution Images】Thanks to the latest optics technology, the night vision zoom monocular equipped with BAK-4 prism and FMC lens that

10x42 Long Distance Digital Laser Ranging Binocular Telescope Range Finder for Golf HuntingProduct DescriptionULTRA-FAST RANGING: Our Standard Ranging Mode provides accurate and ultra-fast ranging speeds as fast as 0.15 seconds suitable for target shooting, gun hunting, bow hunting and golf. ACCURATE LONG RANGING CAPABILITIES: With long distance ranging capability, this rangefinder is accurate and versatile for various objects at short distance or long distancesPREMIUM OPTICAL QUALITY: Our All Glass Optical System provides better light transmission vs. lesser quality plastic lens systems. 10

High Power 12x50 New Handy Monocular with Hand Strap and Low Night Vision Telescope for Mobile PhoneTONTUBE High Power 12X50 Monocular Telescope for Moblie Phone provides the best view at 430ft/1000 yards with BAK-4 prism and FMC(fully multi-coated) green coated lens while bird watching, hunting, hiking, camping, traveling, wildlife, scenery, etc.About this item【12X50 Wide-angle and HD View】The high power monocular telescope provides 12X magnification with 50mm objective diameter wide lens, let you have the best view in outdoor adventures.【HD BAK4 Prism and FMC Lens】The

12-36x50 BAK4 Angled Spotting Scope with Tripod Smartphone Adapter for Hunting Bird Watching Wildlife SceneryProduct Description 1.Variable 12x to 36x magnification and dynamic lens focusing system - makes it easy to zoom in on target. Perfect for target shooting, archery, hunting, bird watching, wildlife watching, hiking, camping, scenery, outdoor sporting, astronomical observation etc 2.Fully multi-coated 50mm green film objective lens provides a field of view at  52-26M/1000M .The quality BAK4 Porro prism optics increases light transmission and make your view brighter,

                                12x50 High Power Monocular Telescope with Tripod & Samrtphone Mount for Bird Watching Tontube YMT1 12x50 High Power Monocular is Multi-purpose: With long range zoom-able prism lens, you can use this monocular to see things clearly far away at 12x closer, perfect for watching sports games,go hiking, climbing,birds watching,hunting and etc. About this 12x50 monocular telescope:Lightweight and handy monoculars with superb optical performance; Easy to carry

Hollyview 6X Night Vision Range Finder Laser Binoculars Range and Speed Finder Product DescriptionOptical - 6 times magnification The 6x zoom lens makes aiming easier. On the clear, easy-to-read wide LCD screen, you can check the yardage by adjusting the diopter. Efficient and accurate rangefinder operation The 6x25 rangefinder has a very high accuracy and can provide a practical range of 5 to 1000m (1093 yards) and a highly reflective target of 1600 yards. It has a powerful 6x optical zoom and a clear lens, making you feel very close to the target. Minimal operation design This thing

10X42 Binoculars for Adults Bird Watching with BaK-4 Prisms FMC Lens Ideal for Nature ObservationAbout this item【High Power 10x42 Roof Prism Binoculars】 With10x high power magnification and wide-angle 42mm lens delivers best-in-class clarity and brightness; Provided with 24mm green film eyepiece and 96m@1000m large field of view, especially designed for outdoor activities such as climbing, hiking, driving, watching wildlife and scenery. This binocular also can be used for watching large stage play, vocal concert, a football game, etc. 【Dual focus Capability & Precise

{{item.prod_desc}}