Prism material:BAK4. BAK4 prism and multi-coated lens for improved light transmission and image clarity. Keep a proper exit pupil distance with the eyepiece. If the stickers are too close or too far away, you will feel dark shadows in the field of view when observing, and you will not be able to get a complete circle of vision.
eBay
Agnicy 1.25 Inches Interface to 0.965 Inches Interface Adapter M28*0.6mm Thread Size Astronomical Telescope Accessories
Aliexpress UK
That's because our product can provide great help in bird watching, sport matches, concerts, hiking, climbing, hunting, and etc. - Bright and clear vision, humanized design, your will not feel tired while using it.
eBay
Svbony SV133 Telescope Filter Wheel 1.25/2 Inch Metal Filter 5 Positions for Telescope Eyepiece for astronomical telescopes
Aliexpress UK
(Great value mini binoculars for bird watching, outdoor sports and shows, air shows. 30x60 zoom magnification with Rubicon coating lenses. Perfect Present for any occasion - We Promise you won't be Disappointed :).
eBay
Angeleyes UHC Light Pollution Blocking Filter, Urban Pollution Filter, 1.25 ", Astronomical Telescope Accessories
Aliexpress UK
This compact adults binoculars is ideal for campers, hunters, sports enthusiasts and concert goers tourists. Binoculars bird watching provides sharp clear optical performance at an unbelievable value.
eBay
EYSDON 5X Barlow Lens 1.25" Metal Fully Coated Focal Length Extender For Astronomical Telescopes With M42 Camera T2 Threads
Aliexpress UK
Experience crisp, high-magnification viewing with these 500X25 mini straight-tube binoculars—ideal for concerts, sports, birdwatching, hiking, or beach outings. Pair them with the included phone mount to capture HD photos of distant scenes!
eBay
60x21 BAK4 Zoom Monocular Binoculars with Wrist Strap Mini Portable Telescope Optics Scope for Outdoor Camping Hunting Telescope
Aliexpress UK
Features:-With 10x magnification and a large 25mm objective lens, it provides clear and sharp images, and a large field of view of 1000 meters for excellent details, so you can observe many things without changing your position.-The objective lens adopts multi-layer green FMC broadband film and the eyepiece adopts blue FMC coating, which can achieve 99.5% light transmittance, giving you a good image and providing you with an extraordinary experience.-The BAK4 prism has good light transmittance, glare reduction, color rendering and contrast, no dark edges, bright images, and night vision in low-light conditions (it can be used at night, but not in complete darkness).-A large central focus knob and diopter adjustment ring make it easy to focus on your target. .
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APEXEL 60X Mobile Phone Telescope Lens Astronomical Telephoto Zoom Lens With Extendable Tripod for iPhone Huawei All Smartphones
Aliexpress UK
Wide Fields of View: Enjoy superior image clarity while you use this pair of 30 x 60 binoculars. It uses prism design which ensures clear and brighter viewing. Pocket Size & Lightweight: Folded size: Approx.
eBay
Baigish Russian 8-24X40 Monocular Telescope Large Objective Long Rang Zoom Binocular Metal High Power HD Spyglass Spotting Scope
Aliexpress UK
Prism material:BAK4. BAK4 prism and multi-coated lens for improved light transmission and image clarity. Keep a proper exit pupil distance with the eyepiece. If the stickers are too close or too far away, you will feel dark shadows in the field of view when observing, and you will not be able to get a complete circle of vision.
eBay
APEXEL 60X Mobile Phone Telescope Lens Astronomical Telephoto Zoom Lens With Extendable Tripod for iPhone Huawei All Smartphones
Aliexpress UK