Jacobs Digital

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SkyWatcher 300mm F/4 Quattro Reflector OTA Telescope


SkyWatcher 300mm F/4 Quattro Reflector OTA Telescope

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Green truck Special order. Usually ships in 1-6 weeks. An order for this can be placed with our supplier, and usually ships within the specified timeframe.

Delivery truck More on the way

Estimated time of arrival: Jul 18, 2024



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About this product

  • 305mm aperture, 1200mm focal length
  • Fast f/4 focal ratio
  • Parabolic mirror designed for imaging with 94% reflectivity
  • 10:1, dual-speed, 2-inch Crayford-style focuser
  • Oversized secondary mirror produces greater illumination for full-frame DSLR and CCD cameras
  • Tube rings, mounting plate, eyepiece adapters, and 9x50 finderscope included

The Quattro imaging Newtonian is an affordable, large-aperture astrograph, ideal for users searching for a fast imaging system that will work for both astrophotography and visual astronomy. Boasting a swift f/4 focal ratio, this astrograph is can produce an exposure 6x faster than the average 8-inch f/10 Schmidt Cassegrain telescope. Although designed as an imaging optical tube, these Newtonians also produce bright and detailed viewing for visual astronomy. 

Like all Sky-Watcher reflectors, the Quattro imaging Newtonian features borosilicate mirrors coated with Sky-Watcher’s proprietary Radiant™ Aluminum Quartz (RAQ™), producing 94% reflectivity. The tube is constructed with rolled steel, then coated with Sky-Watcher’s signature glossy metal-flake Black Diamond finish. The OTA uses an oversized secondary mirror providing greater illumination for DSLRs and CCDs using full-frame sensors, and an optional coma corrector is available for those who want to take their imaging to the next level.

Included with the Quattro imaging Newtonian is a 10:1 dual-speed 2-inch Crayford-style focuser, 1.25 and 2-inch eyepiece adapter, a 9x50 finderscope, tube rings, and a D-style dovetail plate.

Optical Design Reflector
Diameter/Aperture 300mm
Focal Length 1200mm
F/Ratio f/4
Finder Scope 8 x 50mm
Highest Practical Power 600x
Focuser Diameter

2″ (50.8mm) Dual Speed 10:1 Linear Power Focuser

Weight - 15kgs

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