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4K 10-300X40mm Super Telephoto Zoom Monocular Telescope

$47.99 $60.00
Unit price  per 


  • The telescope was invented by Johns Hopkins University and released on July 1. The purpose of this study is to achieve maximum magnification at the smallest effective aperture while ensuring the luminous flux and resolution angle of the telescope. This telescope is the first attempt to use nano-etching technology, nano-array technology, mesoporous assembly technology, thin-film mosaic technology and nano-optical materials to make the flatness error of the lens reach 10nm. The luminous flux reaches 30 times that of ordinary telescopes with the same diameter. The resolution angle is 47 times that of ordinary telescopes with the same diameter. The maximum magnification reached 300 times.This is the first monocular to achieve this magnification and clarity on such a small scale.

Academic report of the telescope- Ultralight Weight Optical Systems Using Nano-layered Synthesized Materials


  • If there are no terrain obstacles, you can use it to easily observe people or things from miles away.


  • The Night vision function allows you to use it normally at night.


1. Install the equipment and aim at the target



2. The default multiple of the phone, showing a circle



3. Adjust the photo magnification to the maximum, and then adjust the telescope magnification



Photos obtained(The phone model used for shooting is 6S Plus, The effect of different phones may vary



  • Turn on auto focus and blur the background function so that you can focus on observing the person or thing you need to observe.

  • The shell is made of a plastic with a higher specific strength and weighs only 146g. After retracted, the length is only 126mm, and you can easily put it in a backpack or pocket when hunting, traveling, or camping.

  • Waterproof, Dust-proof, and Shockproof Design :Nitrogen-filled waterproofandO-ring sealedoptics prevent moisture, dust and debris and ensures the living waterproof function.

  • Ideal for outdoor enthusiasts and wilderness explorers :a handheld and must-have for bird watching, wildlife, hunting, hiking, mountaineering, camping, surveillance and traveling

  • Compatible mobile  phone :iPhone 11 /11 Pro/11 Pro Max /XS /XS Max /XR/X/8 plus/8 /7plus /7 /6 / 6s /6plus/5/5s/4s/SE, Samsung GALAXY S10,S10+,S9, S9+, S8, S6, S6 Edge, S5 , Note, LG, HTV, Sony,and almost all other smartphones on the market.


  • Magnification: 10-300X

  • Prism Type: BAK-S1

  • Objective lens coating: FMC

  • Prism system: BAK-S1 Prism

  • Field of view: 360ft/1000yds

  • Weight of monocular: 146g


Standard Package

  • 1x 10-300X40mm Monocular

  • 1x Storage bag

  • 1x Eyepiece and Lens Protection Covers

  • 1x Cleaning Cloth

  • 1x Portable rope

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