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Explore Scientific  |  SKU: FL-AR90500AZ

Explore Scientific FirstLight 90mm f/5.5 Doublet Refractor Telescope with Alt-Az Mount


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Explore Scientific FirstLight 90mm f/5.5 Doublet Refractor Telescope with Alt-Az Mount


Discover the Cosmos with the Explore Scientific FirstLight 90mm Refractor Telescope

Unveil the Universe's Wonders

Step into the world of astronomy with the Explore Scientific FirstLight 90mm f/5.5 Refractor Telescope. Designed for both novice and seasoned stargazers, this telescope combines portability with powerful optics to bring the mysteries of the universe right to your backyard.

Key Features:

  • Powerful Optics: With a large 90mm aperture, this telescope has the light-gathering capability to reveal stunning views of galaxies, nebulae, star clusters, and the intricate details of lunar and planetary surfaces.
  • High-Quality Images: The doublet lens design, featuring two glass lenses separated by air, significantly reduces chromatic aberrations, delivering clearer, sharper images without color fringing.
  • User-Friendly Mount: Navigate the night sky with ease thanks to the simple yoke mount and altitude rod, allowing for smooth movements and effortless tracking of celestial objects.
  • Sturdy and Convenient Setup: The full-size tripod not only provides a stable foundation for observations but also includes an accessory tray to keep your eyepieces within reach.
  • Versatile Viewing Experience: This model comes equipped with 9mm and 20mm Kellner eyepieces and a red dot viewfinder for precise object location. The erect image diagonal ensures correct image orientation, perfect for both celestial and terrestrial viewing.
  • Smartphone Adapter Included: Step into astrophotography by attaching your smartphone with the included adapter, making it easy to capture and share your astronomical discoveries.

Everything You Need for a Night Under the Stars

The FirstLight 90mm Refractor is more than just a telescope; it's your gateway to exploring the cosmos. From the crisp, vivid images it produces to the easy-to-use mount and the versatility it offers for both night-sky and daytime observations, this telescope is equipped to bring the beauty of the universe closer to you. Whether you're capturing the moon's craters or sharing galaxies far away, the FirstLight telescope transforms your celestial adventures into memorable moments.

Included Accessories:

  • Alt/Az "U" Yoke Mount
  • Adjustable-Height Aluminum Tripod with Center Tray
  • 1.25" Rack-and-Pinion Focuser
  • 1.25" Erect Image Diagonal
  • K9 and K20 Eyepieces
  • HD119 Red-Dot Finder
  • Smartphone Camera Adapter

Embark on your astronomical journey with the FirstLight AR90mm White Tube Refractor Telescope and unlock the door to the universe.

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Explore Scientific FirstLight 90mm f/5.5 Doublet Refractor Telescope with Alt-Az Mount | FL-AR90500AZ | 8122570183906

Explore Scientific FirstLight 90mm f/5.5 Doublet Refractor Telescope with Alt-Az Mount





90 mm | 3.5"

Focal Length

500 mm

Focal Ratio


Field of View




Barrel Size





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