Product Highlights

80mm Refractor OTA
640mm Focal Length, f/8 Focal Ratio
Fully Multi-Coated Optics
40mm Rack-and-Pinion Focuser
1.25" 25mm Eyepiece and 90° Diagonal
Twilight Nano Manual Alt-Az Mount
Dual-Axis Slow Motion Cables
Red-Dot Finderscope
Smartphone Eyepiece Adapter
1.25" Stainless Steel Tripod with Tray

The Explore Scientific FirstLight 80mm f/8 Alt-Az Refractor Telescope is ideal for users who want a portable observation platform for making observations or taking images of the moon and planets. Its moderate aperture and shorter focal length produce a fast focal ratio for improved resolution, and a larger 40mm drawtube to help avoid vignetting with larger imaging sensors or wide-field eyepieces.

The scope features the manual Twilight Nano alt-azimuth mount with dual-axis control cables that allow users to track objects as they move across the night sky. Its stainless steel tripod provides a stable observation platform; and several observational accessories are provided that include a 25mm eyepiece, a 90°-star diagonal, a universal smartphone eyepiece adapter, and an unmagnified red-dot finderscope.

Optical Tube

80mm aperture
f/8 focal ratio
640mm focal length
Refractor-style optical configuration
Fully multi-coated optics improves light transmission for increased image contrast and brightness
Sturdy rack-and-pinion focuser
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

Mount

Manual alt-azimuth single-arm fork mount
Dual-axis slow motion tracking cables
Cables terminate in easy-to-manipulate knurled knobs
Quick-detach Vixen-style dovetail saddle

Tripod

1.25" Stainless steel legs
Two leg sections with thumbscrew locks
Accessory tray doubles as leg stabilizers for additional rigidity and vibration-reduction

Included Accessories

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

Specifications

Optical Design	Refractor
Aperture	80mm
Focal Length	640mm
Focal Ratio	f/8
Eyepiece Barrel Diameter	1.25"
Diagonal	90°-star diagonal
Finderscope	Red-dot finder
Tripod	Adjustable-height, stainless steel
Mount Type	Manual alt-az
Power Source	None
Optical Tube Dimensions	Not specified by manufacturer
Weight	Not specified by manufacturer

In the Box

Explore Scientific FirstLight 80mm f/8 Alt-Az Refractor Telescope

First Light Twilight Nano Alt-Az Mount

1.25" 25mm Eyepiece

1.25" 90° Diagonal

Red-Dot Finder

Limited 1-Year Warranty, Extendable to Transferrable Lifetime Warranty with Registration

Explore Scientific FirstLight 80mm f/8 Alt-Az Refractor Telescope Explore Scientific FirstLight 80mm f/8 Alt-Az Refractor Telescope