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All-Star Telescope is your source for all things astro from telescopes to astrophotography cameras. Have a question? We'd love to help. Email: Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844
Have a question? We'd love to help. Email: Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844

Sky-Watcher Quattro 300P 12" Imaging Newtonian Telescope OTA (S11230)

SKU 050234112307
Original price $2,270.00 - Original price $2,270.00
Original price
$2,270.00 - $2,270.00
Current price $2,270.00

Product is not in stock at the moment but we expect it to arrive soon.

New stock is arriving all the time. We will let you know an estimated timeline for when your reserved item will arrive.

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.

Quick overview

  • 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

What's in the box

  • SkyWatcher Quattro 12" Imaging Newtonian Reflector Telescope OTA
  • 3" Dual Speed 10:1 Crayford-Style Focuser
  • eyepiece adpaters
  • 9x50 Finderscope and Bracket
  • Tube Rings with D Series Style Dovetail Bar


Optical Info
Optical Design Newtonian
Mirror Coatings Radiant Aluminum Quartz (RAQ) coatings with 94% reflectivity
Glass Type Borosilicate
Primary Aperture (mm) 305
Primary Edge Thickness 38mm
F/Ratio 4
Focal Length (mm) 1200
Secondary Diameter 102mm
Secondary Obstruction (by diameter) 33%
Secondary Obstruction by Area 11%
Observational Info
Dawes Limit 38%
Rayleigh Limit 0.46
Limiting Mag. 14.9
Minimum Magnification 43
Maximum Magnification 600
Light Gathering (compared to next size down) 44%
General Info
Focuser 2" Dual Speed Crayford
OTA Length (Retract/Ext.) 42.5"
OTA Outer Diameter 14.25"
OTA Weight (with accessories) 57
Included Finder 9x50 Finder
Included Diagonal No
Mounting Accessories Rings/D-Rail
Included Eyepieces None
Included Case No
Corrector No (optional)