Sky-Watcher Flextube 300P SynScan 12" f/4.9 Dobsonian GoTo AZ Telescope

BH #SK12GTCD • MFR #S11820
Sky-Watcher
Sky-Watcher Flextube 300P SynScan 12" f/4.9 Dobsonian GoTo AZ Telescope
Key Features
  • Large 12" f/4.9 Aperture
  • 1500mm Focal Length
  • Highly Reflective Borosilicate Mirror
  • Space-Saving Collapsible Tube Design
Sporting the large light bucket users have come to expect from a Dob, the Sky-Watcher Flextube 300P SynScan 12" f/4.9 Dobsonian GoTo AZ Telescope gives users great performance at a reasonable price. Its large parabolic Borosilicate primary mirror is treated with an aluminum coating that brings its reflectivity to over 94%, with a secondary mirror obstruction of just 5% by area. Unlike traditional Dobsonians that tend to be bulky and unwieldy, the Flextube's patented truss design allows it to retract to just 36" for easier transport and storage and extends to 55" with an impressive 1500mm focal length for observation.
More on the Way
Expected availability: 2-4 weeks
$2,200.00
$184/mo. suggested payments
with 12 Mos. Promo Financing* 
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Sky-Watcher GoTo Overview

  • 1Description
  • 2Optical Tube Assembly
  • 3SynScan Control
  • 4Focuser
  • 5Base Details
  • 6Included Accessories

Sporting the large light bucket users have come to expect from a Dob, the Sky-Watcher Flextube 300P SynScan 12" f/4.9 Dobsonian GoTo AZ Telescope gives users great performance at a reasonable price. Its large parabolic Borosilicate primary mirror is treated with an aluminum coating that brings its reflectivity to over 94%, with a secondary mirror obstruction of just 5% by area. Unlike traditional Dobsonians that tend to be bulky and unwieldy, the Flextube's patented truss design allows it to retract to just 36" for easier transport and storage and extends to 55" with an impressive 1500mm focal length for observation.

Optical Tube Assembly

  • 12" (305mm) aperture is able to resolve dim deep-space objects like wispy nebulae and galaxies
  • Fast f/4.9 focal ratio ensures a wide field of view & maximum light throughput
  • For astrophotography, the fast focal ratio will result in shorter exposure times than "slower" OTAs while achieving similar results
  • Long 1500mm focal length helps to produce the fast focal ratio and magnification range
  • Collapsible truss system eliminates the need to disassemble the telescope after use and saves space during transport and storage—measuring 36" when trusses are retracted and55" when set up
  • Borosilicate parabolic primary mirror with aluminum coatings that bring the reflectivity to 94%
  • Resolution: 0.38 arcsec (Dawes Limit), 0.46 arcsec (Rayleigh Limit)
  • 70mm diameter secondary mirror; Obstruction: 23% by diameter, 5% by area
  • 58.5" eyepiece height when aimed directly overhead at the zenith

SynScan Control

  • Built-in Wi-Fi module allows the use of the SynScan smartphone app to control the base—app is available for Apple and Android devices
  • Wired hand controller, powered by the mount, provides all the same functionalities as the app
  • User-friendly menu system
  • Up to 5 arcmin GoTo pointing accuracy
  • Brightest-Star and Two-Star assisted alignment procedures
  • Sidereal, lunar, solar tracking rates
  • 1x, 2x, 8x, 16x, 32x, 200x, 400x, 600x, 800x, 1000x slew speeds
Database Details:
  • 42,900 objects including planets, nebulae, star clusters, and galaxies
  • Tour of the night sky based on location, date, and time
  • 25 user-defined objects
  • Includes the complete Messier, NGC, and IC catalogs; and partial SAO catalog

Focuser

  • Crayford-style is much more precise than the traditional rack-and-pinion
  • Tension control system eliminates gears, resulting in zero backlash for tack-sharp focus on objects that are dim or close together, like binary stars
  • 2" diameter holder allows the use of larger eyepieces and imaging systems that provide a wide field of view and long eye relief to make viewing dim and small deep-sky objects more comfortable

Base Details

  • Dual-axis DC servo motors with encoders
  • Dual encoder design keeps track of where the scope is being moved, allowing the telescope to be moved manually without the need for re-alignment-1,620,000 counts per revolution, main axis encoder: 11,748 counts per revolution
  • Tension Control Handle allows users to add or reduce tension, increasing or decreasing friction between the optical tube and sideboards
  • Included 10-15 VDC 1A power supply
  • Dimensions: 32.5 x 25"

Included Accessories

Eyepieces:
  • 1.25" diameter nosepiece accepts most standard filters
  • 25mm focal length eyepiece produces a low 60x magnification for wide-field observations, alignment, and viewing lunar surface details
  • 10mm focal length eyepiece yields a high 150x power to make detailed observations of specific portions of the sky or for planetary viewing
Reducer Adapter:
  • 2-to-1.25" reducer allows the use of the more common size eyepieces and accessories
Finder:
  • Low 9x power produces a wide field of view for accurate alignment
  • 50mm objective allows users to see dimmer stars for more options during 2-star alignment
  • Mounting bracket included
UPC: 050234182010

Sky-Watcher GoTo Specs

Optical Tube Assembly
Optical DesignDobsonian Reflector
Aperture305 mm / 12"
Focal Length1500 mm
Focal Ratiof/4.9
Resolution0.38 Arcsec (Dawes)
0.46 Arcsec (Rayleigh)
FocuserSingle-Speed Crayford
Eyepiece Barrel Diameter1.25", 2"
DiagonalNone
FinderscopeYes
Optical Tube Dimensions36 x 14.3" / 91.4 x 36.3 cm Retracted
55 x 14.3" / 139.7 x 36.3 cm Extended
Mount
TypeMotorized; Alt-Azimuth
GoTo CapabilityYes, SynScan
General
BatteriesNone
Adapter12 VDC
GPSNo
Wi-FiYes (Built In)
Weight46.2 lb / 21 kg (OTA)
53 lb / 24 kg (Mount)
Packaging Info
Package Weight138.8 lb
Box Dimensions (LxWxH)41 x 35 x 29"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

how big is the foot print of this telescope? ...

how big is the foot print of this telescope? (what is the diameter of the floor stand?) Thank you.
Asked by: Ann
The base is 32.5x25 inches and the height is 58.5 inches.
Answered by: Dan
Date published: 2020-10-15

question

Can I buy the base only with the GOTO ??
Asked by: Gunnar
A GoTo base upgrade is offered by Sky Watcher, but the price is pretty steep. Factoring in sales tax, shipping, and the work needed to assemble the base and convert the telescope, it's probably better to order the GoTo version of the scope and sell the old one.
Answered by: Guy
Date published: 2021-09-01

How is the mounting powered? Batteries? Car ...

How is the mounting powered? Batteries? Car Adapter? 120VAC?
Asked by: Dan
The mount requires 12Vdc. A fairly long cable terminated with a 12V automobile accessory (cigarette lighter) plug is supplied. The base does not have room for a large battery, and any more than one rotation of the scope would probably wrap the cable around the base. I have used a 6000mA "TalentCell" rechargeable lithium battery to power the telescope and the fan I mounted on the back of the mirror cell. It will keep the telescope going for several nights before needing a recharge. Note that battery voltage should not drop below 10.2 or so to assure proper operation of the telescope. The hand controller includes a setting to check this voltage.
Answered by: Guy
Date published: 2021-09-01

question

Does it follow objects?
Asked by: Anonymous
The 12" GoTo telescope will track an object. However, you do need to do a proper setup (point true north and leveling) before powering up the SynScan gear, and then do an alignment (several types available). Instruction are included. The SynScan controller will also guide you through the process. The instructions say something about tapping the up and right arrow buttons to engage tracking. The SynScan Pro apps for Android or Windows are actually a bit more detailed in guiding you through an alignment. I've left the telescope for 15-20 minutes and then returned to find the object still centered in the eyepiece. Note that this scope is capable out of the box for WiFi operation. You can use a smart phone or table as a wireless controller.
Answered by: Guy
Date published: 2021-01-05

Does this telescope work for deep sky ...

Does this telescope work for deep sky astrophotography?
Asked by: Steven
The GoTo AZ mount is more than adequate for planetary photography. As for deep sky objects, success depends on the camera, tracking accuracy (which depends on setup and tweaking of tracking rate), capabilities of the camera and imaging software, post processing , and sky conditions. I have trained the telescope with a decent mid-level astro cam on M31 (Andromeda) and noted the "fuzz ball" never moved in the computer screen after several minutes. It would have been enough time to do a few long exposures. Whether the camera or light pollution were conducive to a good image is unknown. I plan to try again when I have a good observing night.
Answered by: Guy
Date published: 2021-09-01

question

Does it work with Sky Safari's SkyFi?
Asked by: Margie
We do not sell that Item in our System. My apologies. I would recommend contacting Sky-Watcher with this inquiry.
Answered by: Alex S.
Date published: 2018-08-26

What is the diameter of the floor mount? Thank ...

What is the diameter of the floor mount? Thank you.
Asked by: Ann
I'm pretty sure the base dimensions (32.5"x25") are given in HxW. So with the OTA removed, the base would have a diameter of 25" and a height of 32.5"
Answered by: Daniel
Date published: 2021-01-15
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