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.
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T2-PK for T2 (M42x0.75) mount - Pentax K PK Mount Adapter Ring T2-K T-PK T-K KAF KAF2 for Pentax K1 K3 K5 K50 etc. for Telescope
Aliexpress UK
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Vixen Dovetail Multi-purpose Dovetail Groove 45/60/90/120/150/180/210/240mm Guide Mirror Dovetail Plate Astronomical Accessories
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.
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Agnicy 1.25 Inches Interface to 0.965 Inches Interface Adapter M28*0.6mm Thread Size Astronomical Telescope Accessories
Aliexpress UK
Achieve visibility with binoculars engineered for adults passionate about exploration. Suitable for hunting, stargazing, cruise outings, and wildlife safaris, the built-in phone holder simplifies photography.
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Angeleyes UHC Light Pollution Blocking Filter, Urban Pollution Filter, 1.25 ", Astronomical Telescope Accessories
Aliexpress UK
The product is a compact binoculars with a maximum magnification of 40x and a fully multi-coated lens coating. It features a porro prism optical design and is of British origin. With a sleek black colour, this powerful binoculars offer high definition and long range viewing up to 2000m. Ideal for outdoor activities such as bird watching, hunting, or stargazing, this binoculars provide a clear and detailed view with its BAK4 FMC technology. Perfect for photography enthusiasts capturing distant subjects with precision and clarity.
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EYSDON 5X Barlow Lens 1.25" Metal Fully Coated Focal Length Extender For Astronomical Telescopes With M42 Camera T2 Threads
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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60x21 BAK4 Zoom Monocular Binoculars with Wrist Strap Mini Portable Telescope Optics Scope for Outdoor Camping Hunting Telescope
Aliexpress UK
【Powerful 12x42 Binoculars, but Light Enough,】 12x42mm binoculars provide a large field of view of 367ft/1000yds. Capable of providing clear images at a distance of over 650ft. Great for bird watching, hunting and sporting events.
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APEXEL 60X Mobile Phone Telescope Lens Astronomical Telephoto Zoom Lens With Extendable Tripod for iPhone Huawei All Smartphones
Aliexpress UK
Switch from portrait to landscape by turning the padded eyepiece clamp and readjusting the X, Y, and Z axis. Accommodates various smartphones, even larger "phablets," with adjustable phone platform.
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Baigish Russian 8-24X40 Monocular Telescope Large Objective Long Rang Zoom Binocular Metal High Power HD Spyglass Spotting Scope
Aliexpress UK