Sky-Watcher Quattro 200 ST Reflectoring Telescope

Sky-Watcher Quattro 200P Imaging Reflectoring Telescope

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Your Price: CAD1,230.90

Sky-Watcher, P200/F800mm Reflector, 2" Linear power focuser, 8x50 Finderscope

Part Number: S11210

Availability: Usually ships in 5-7 business days

Field Flattener & Coma Corrector

Simulate views with this scope and various eyepieces

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Description

Product Highlights

8" / 205mm Aperture
800mm Focal Length
f/3.9 Focal Ratio Optimized for Imaging
Highly Reflective Borosilicate Mirrors
Fully Multi-Coated Optics
2" Crayford-Style Dual-Speed Focuser
Vixen-Style Dovetail Plate

Sky-Watcher's 8" f/3.9 Quattro Imaging Newtonian Telescope has been specifically engineered for astrophotography and astro-imaging performance. Its 800mm focal length has been shortened to produce a fast f/3.9 focal ratio which helps to reduce the exposure times required for capturing detailed images of the Moon, planets, and deep-sky objects. To further help boost it's performance are borosilicate mirrors which have a low coefficient of thermal expansion to reduce the effects of expansion/contraction due to temperature fluctuation. This helps limit distortion that can occur when moving the OTA from indoors to outdoors and limiting the scope's ability to resolve details. The entire optical system is fully multi-coated to increase the reflectivity of all surfaces to prouce brighter and sharper images.

For imaging and visual use, the ability to achieve tack-sharp focus is critical, so Sky-Watcher outfitted the Quattro with a large 2" Crayford-style focuser. This design uses a steel rod held tightly against the focus tube under tension. Using this toothless friction system eliminates backlash and enables ultra-fine precision focusing. A large coarse-focus wheel quickly brings subjects into rough focus, and then the 10:1 fine-focus allows the user to precisely focus it without the risk of losing it as soon as the knob is released. Having the ability to use larger 2" accessories and eyepieces provides an immersive experience during observation sessions and the ability to use larger sensors for capturing images.

The Quattro is offered here without a mount or tripod for users that have a solid observation platform. Its cradle ring assembly clamps over the OTA and allows the OTA to be positioned for balancing when mounted, the eyepiece to be precisely placed for more comfortable observations, and the entire rig to be adjusted to avoid interference with other equipment and accessories. A Vixen-style dovetail plate on the bottom of the cradle ring assembly makes this OTA compatible with any Vixen-style saddle.

Optical Performance

8" / 205mm aperture
800mm focal length
f/3.9 focal ratio
Optimized aperture-to-focal length (focal ratio) for enhanced astrophotography and imaging capabilities
Highly reflective borosilicate mirrors
Borosilicate mirrors have a low coefficients of thermal expansion to reduce the effects of expansion/contraction due to temperature fluctuations
Highly reflective fully multi-coated optics
8x50 straight-view finderscope

Focuser

Crayford-style design
Accepts 2" eyepieces and accessories
Two coarse focus wheels, one on each side of eyepiece holder
Fine smaller focus dial on right-side of eyepiece holder
Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash

Mounting

Cradle ring assembly enables the position and orientation of the scope to be adjusted for balance, ease of viewing, and to limit obstruction by other equipment
Vixen-style dovetail plate

General
Batteries	None

Packaging Info
Package Weight	28.0 lb
Box Dimensions (LxWxH)	31.5 x 17.5 x 15.5"

Optical Tube Assembly
Optical Design	Newtonian Reflector
Aperture	203 mm / 8"
Focal Length	800 mm
Focal Ratio	f/3.9
Eyepiece Barrel Diameter	2"
Diagonal	No
Finderscope	Yes
Mounting System	Vixen Style

In the Box

Sky-Watcher 8" f/3.9 Quattro Imaging Newtonian Telescope (OTA Only)

8x50 Finderscope

Limited 2-Year Warranty

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Sky-Watcher Quattro 200P Imaging Reflectoring Telescope

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