Explore Scientific


Explore Scientific iEXOS Equatorial Tracker Mount with GOTO PMC-Eight System and FirstLight 80/640 Refractor Telescope Combo

The Explore Scientific FirstLight 80mm f/8 Refractor GoTo EQ Telescope is ideal for users who want a portable observation platform for making observations or capturing images of the moon, planets, and deep-sky objects.

Its moderate aperture and shorter focal length produce a competent focal ratio for improved resolution, and its larger 40mm drawtube helps avoid vignetting with larger imaging sensors or wide-field eyepieces.


  • 80mm aperture is ideal for observing lunar details, planetary features, and resolving bright deep-sky objects like galaxies, nebulae, and clusters
  • Moderate f/8 focal ratio makes it a capable OTA for astrophotography
  • 640mm focal length has a moderate magnification potential with a compact form factor for portability to remote viewing locations
  • Fully multi-coated optics improve light transmission for increased image contrast and brightness
  • 40mm drawtube helps to reduce vignetting with larger imaging sensors or wide-field eyepieces; 1.25" holder accepts the most popular sized eyepieces and accessories
  • Sturdy rack-and-pinion focuser
  • 15-pound payload capacity for astrophotography equipment like DSLRs, imaging systems, and filter wheels
  • 19-pound payload capacity for visual gear like optical tubes, diagonals, Barlows, and eyepieces

Accessories Included

  • Smartphone adapter attaches over eyepiece and allows any smartphone to be used for astrophotography
  • Unmagnified red-dot finder allows for fast subject acquisition and easy star-hopping, with variable red illumination to protect night-adjusted vision
  • 1.25" 90°-star diagonal places head in comfortable position, especially when OTA is aimed directly overhead
  • 1.25" 25mm Plössl eyepiece yields 25x magnification