Explore Scientific 16" f/4.5 Truss-Tube Dobsonian Telescope OTA (DOB1645-01)

Explore Scientific

Price: $3,599.99 USD
List Price:
Price: $3,599.99 USD
Shipping calculated at checkout.

The Explore Scientific 16″ f/4.5 Truss-Tube Dobsonian (DOB1645-01) delivers enormous deep-sky performance with a massive 406 mm primary mirror that reveals galaxies, nebulae, clusters, and faint structures with exceptional brightness. Its hybrid truss-tube design provides outstanding rigidity while still allowing the telescope to break down into compact components for easy transportation.

Smooth, oversized altitude bearings ensure stable manual tracking, while the ultra-precise 2″ dual-speed helical focuser allows fine adjustments even when using heavy eyepieces or astrophotography accessories. Rapid cooling fans behind the primary mirror bring the optics to thermal equilibrium quickly for sharper views.

This package includes everything needed to start observing immediately: red-dot finderscope, collimation helper tool, light baffle, and dual mirror fans. For deep-sky observers who want a portable but extremely powerful visual instrument, the 16″ Explore Scientific Dobsonian is a top-tier choice.

Key Features

  • 406 mm (16″) parabolic primary mirror for extremely bright deep-sky views

  • Fast f/4.5 optical system ideal for wide-field galaxy and nebula observing

  • Truss-tube Dobsonian design for maximum stiffness and transportability

  • Oversized altitude bearings for smooth, accurate manual tracking

  • 2″ dual-speed helical focuser with 10:1 fine focus

  • Cooling fans for rapid mirror temperature stabilization

  • Included accessories: red-dot finderscope, collimation tool, soft light baffle, dual mirror fans

Specifications

Specification Detail
Aperture 406 mm (16″)
Optical Design Newtonian Reflector, Truss-Tube Dobsonian
Focal Length 1,826 mm
Focal Ratio f/4.5
Primary Mirror Parabolic 406 mm mirror
Secondary Obstruction ~25%
Focuser 2″ dual-speed helical (10:1 fine focus)
Mount Type Dobsonian rocker box with oversized bearings
Eyepiece Height at Zenith ~167 cm
Limiting Magnitude ~15.7 (theoretical)
Max Practical Magnification ~800×
Included Accessories Red-dot finder, collimation tool, light baffle, dual mirror fans
Ideal For Deep-sky observing: galaxies, nebulae, clusters

Video

Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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