Sky-Watcher Quattro 250P Reflector Telescope with Trius Camera Kit

Sky-Watcher Quattro 250P Reflector Telescope with Trius Camera Kit

Sky-Watcher Quattro 250P Reflector Telescope with Trius Camera Kit

B&H # SKQ250PNK MFR # S25007
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Expected availability: 7-14 business days

Product Highlights

  • Complete Astroimaging Kit
  • Large 254mm Imaging Reflector OTA
  • Fast Focal Ratio, 1000mm Focal Length
  • Fully Multi-Coated Borosilicate Mirrors
  • f/4 Extra-Low Dispersion Coma Corrector
  • 2" 2-Speed Rack-and-Pinion Focuser
  • Trius SX-42 Monochrome Camera
  • 6MP Monochrome Sony ExView 694 Sensor
  • 7-Position 1.25" Filter Wheel with OAG
  • Mount and Tripod Required
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Options: OTA, Trius Imaging Kit

OTA Only

Special Order

OTA, Trius Imaging Kit

Aperture: 254mm (10"), f/4

205mm (8"), f/4

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254mm (10"), f/4 305mm (12"), f/4

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Sky-Watcher Quattro Overview

  • 1Description

Sky-Watcher USA partnered with Starlight Xpress and assembled the Quattro 250P Reflector Telescope with Trius Camera Kit to give astroimagers a complete rig that delivers outstanding performance, especially for capturing deep-sky objects like faint galaxies and wispy nebulae.

This kit comes with a fast Newtonian reflector telescope and the Starlight Xpress Trius monochrome imaging camera. The optical tube assembly (OTA) was specifically designed for imaging with a large 254mm aperture, fully multi-coated borosilicate mirrors, and an impressive f/4 focal ratio. To address a common issue when imaging deep-sky objects with reflectors, Sky-Watcher also includes a coma corrector that ensures crisp clearly delineated stars without distortion or halos even at the edges. The Trius imaging kit comes complete with a Lodestar guide camera to ensure a compatible motorized mount is accurately tracking and a seven-position filter wheel for creating custom images using colored and specialty filters that are easy to change between exposures.

The telescope comes with mounting rings and a Vixen-style dovetail plate, so you only need to supply a large equatorial mount and tripod to begin capturing stunning images.

  • 10" f/3.94 Quattro Imaging Newtonian Telescope (OTA Only)

    Sky-Watcher's 10" f/3.94 Quattro Imaging Newtonian Telescope has been specifically engineered for astrophotography and astro-imaging performance. Its 1000mm focal length has been shortened to produce a fast f/3.94 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
    • 10" / 254mm aperture
    • 1000mm focal length
    • f/3.94 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
    • 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
    • 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
    UPC: 050234112208
  • Quattro Coma Corrector

    Optimized for Quattro imaging Newtonians, the Sky-Watcher Quattro Coma Corrector, delivers stunning wide-field views with pinpoint stars to the edge of the field while the magnification remains unaltered. Made with extra-low dispersion (ED) FPL51 and Schott glass with a fast f/4 focal ratio for imaging, this accessory corrects for chromatic and spherical aberrations that create halos to appear around bright stars and other objects and cause colors to shift. Using the corrector enables users to achieve tack-sharp focus with true color rendition across the entire field of view - especially at the edges. It fits into 2" focusers and requires a backfocus of 55mm (2.16").

    UPC: 050234202046
  • Starlight Xpress Trius SX-42 Monochrome Camera Imaging Kit

    The Starlight Xpress Trius SX-42 Monochrome Camera Imaging Kit was assembled as part of a joint effort between Sky-Watcher USA and Starlight Xpress in honor of Sky-Watcher's 20th Anniversary and specifically designed to address all the normal confusion new imagers have when setting up their first system. The camera system's 17mm back-focus distance (±1mm) is matched for all Sky-Watcher correctors and simply threads onto the corrector for fast and easy setup. This kit includes Starlight Xpress' Trius 694 monochrome imaging camera, their Lodestar X2 monochrome guide camera, plus a seven-position filter wheel equipped with a built-in off-axis guider (OAG). With low power consumption and a compact lightweight design, this imaging kit is the ideal starter rig for anyone interested in astroimaging.

    Trius SX-42 Camera
    The Trius features a 6MP Sony ExView 694 monochrome sensor to capture your images with a high-speed USB 2.0 connection to your computer that transfers the images in about 5 seconds. The camera housing is outfitted with a USB hub to power peripherals like the included guide camera and filter wheel to limit the amount of cables and reduce tangle or snag hazards. To help keep the system cool during use, the housing is filled with dry argon gas with an integrated fan that can reduce the camera's temperature as much as 104°F (40°C).
    Lodestar X2 Monochrome Autoguider
    When used in conjunction with autoguiding computer software, the Loadstar Autoguider will monitor the position of a set guide star during long exposure astrophotography or imaging sessions to ensure the mount is accurately tracking the subject so images remain crisp and sharp. If a deviation is detected, the software automatically sends the necessary tracking corrections to your mount. An autoguider is a must-have piece of gear for any astrophotographer. The Lodestar can be powered by the Trius' USB hub and controlled by the computer it is connected to.
    Filter Wheel
    An indispensable imaging accessory, a filter wheel allows you to change filters without having to touch your gear, unmount or disassemble your imaging system, or otherwise touch your mount or telescope setup. The whee's drive system changes filters quietly and without vibration. With seven filter cells available, you are able to use your primary colored filters, plus special ones like a narrow band, nebulae, and clear focusing filters. To make this as easy as possible for beginner imagers, the wheel accepts standard 1.25" eyepiece filters so you won't have to go out and get all new filters as you move into a new part of you astronomy hobby. The wheel is USB powered, so you can use the Trius' USB hub to power and control it.

    An OAG is included, allowing you to use the filter wheel independent of the Trius for observation purposes without losing the convenient auto-correcting functionality of the Trius' guide scope.

    UPC: 050234250016
In the Box
Bundle Items
  • 8x50 Finderscope
  • Limited 2-Year Warranty
  • Limited One-Year Warranty
  • Trius Camera
  • Lodestar Guide Camera
  • Filter Wheel with Off-Axis Guider
  • Connection Cable Kit
  • Carrying Case
  • Limited 1-Year Warranty
Table of Contents
  • 1Description
  • 10" f/3.94 Quattro Imaging Newtonian Telescope (OTA Only)
    Optical Design Newtonian reflector
    Aperture 10" mm
    Focal Length 1000 mm
    Focal Ratio f/3.94
    Eyepiece Barrel Diameter 2"
    Diagonal None
    Finderscope 8x50 straight view
    Tripod None
    Mount Type Vixen-style dovetail plate
    Power Source None
    Optical Tube Dimensions Not specified by manufacturer
    Weight Not specified by manufacturer
    Packaging Info
    Box Dimensions (LxWxH) 40.5 x 19.0 x 18.5"
  • Quattro Coma Corrector
    Packaging Info
    Box Dimensions (LxWxH) 6.0 x 4.1 x 3.4"
  • Starlight Xpress Trius SX-42 Monochrome Camera Imaging Kit
    Sensor Sony ExView 694
    Size 15.98, diagonal
    Pixel Count 6 MP
    Pixel Size 4.54uM
    Back Focus 17 mm, ±1 mm
    Ports 3 x USB
    Computer Connection USB 2.0
    Dimensions 3.0 x 2.8" / 7.5 x 7.0 cm
    Weight 17.6 oz / 500.0 g

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