From the manufacturer

Sky-Watcher Quattro Series

The Quattro Imaging Newtonian is a fast f/4 Newtonian telescope that produces a beautiful wide field, perfect for both astrophotography and visual use. All Quattro Newtonians come with a 2" dual-speed focuser and an oversized secondary mirror for cameras with full-frame sensors. An optional coma corrector is available and recommended for astrophotography.


	Quattro 200P	Quattro 250P	Quattro 300P
			See Details
Customer Reviews	28	28	4
Price	$830.00	$1,180.00	—
Optical Design	Newtonian	Newtonian	Newtonian
Aperture (mm)	203	257	305
Focal Length (mm)	800	1000	1200
F/Ratio	4	4	4
Limiting Magnitude	14	14.5	14.9
Maximum Magnification	400	500	600
OTA Length (Inches)	28	36.5	42.5
OTA Weight (Pounds)	21	36.5	57
Image Circle (w/ Corrector)	28mm	28mm	28mm
Back Focus (w/ Corrector)	55mm	55mm	55mm

2" Dual-Speed Crayford-Style Focuser

All Quattro Imaging Newtonians come with a beefy 2" dual-speed Crayford-style focuser, compatible with all full-frame cameras and large 2" eyepieces.

Proprietary MHTC Coatings

All Quattro optical tubes use a parabolic mirror, made of borosilicate with a quartz overcoat and Sky-Watcher's patented Metallic High-Transmission Coatings (MHTC) producing 94% reflectivity.

Rings and Dovetail Included

The Quattro Imaging Newtonian series comes complete with tube rings and a Vixen-style dovetail plate (300P model includes D-style)

Knife Edge Baffles

Multiple knife edge baffles prevents stray light from affecting your imaging and viewing experience (only on 200P and 300P models).

The Quattro Imaging Newtonian is one of the most affordable telescopes with a f/4 focal
ratio. This astrograph is capable of producing an exposure 6x faster than any f/10 optical tube.
Even pricey refractors have trouble reaching a focal ratio this fast. Using a faster optical tube
will shorten the exposure time, giving you more time to photograph nebulae, clusters, and other
deep sky objects.
Like all Sky-Watcher reflectors, our Quattro Imaging Newtonian features aluminum-
coated borosilicate mirrors with a quartz overcoat, producing 94% reflectivity. The optical
system uses an oversized secondary mirror, providing greater illumination for DSLRs and CCDs
using full-frame sensors. The optical tube is constructed with rolled steel, and features Sky-
Watcher’s signature metal-flake Black Diamond finish on the exterior. The interior of the optical
tube uses knife-edge baffles to absorb any stray light from ruining your images.
As customary with all Sky-Watcher telescopes, a boat-load of accessories are bundled
with the optical tube. First is a 2-inch dual-speed 10:1 focuser with included 1.25-inch eyepiece
adapter, which provides flexibility for either 1.25-inch or 2-inch eyepieces. Also included are
tube rings and a V-style dovetail plate, as well as a 9x50 finderscope. For photographers
looking to create a flat field and eliminate vignetting, an optional coma corrector is available
separately. Parabolic mirrors normally produce some aberrations around the edge of the field of
view (coma), so this corrector is highly recommended for users with large imaging sensors and full-frame DSLRs.