Sky-Watcher Flextube 200Pi Synscan Dobsonian (S11805)

Sky-Watcher Flextube 200Pi Synscan Dobsonian

Sky-Watcher’s Flextube SynScan GoTo Collapsible Dobsonian series are the telescopes your mother warned you about. Big aperture, bigger attitude, with all the innovations that make Sky-Watcher the obvious choice when hunting for that Goldilocks zone where value meets desire. Ranging from the standard 8 to a whopping 16 inches in diameter, Flextube SynScan Dobsonians are precision engineered instruments that will allow you to easily find and enjoy viewing night sky treasures such as planets and the Moon, nebulae, star clusters, galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance which is crucial when travelling to dark skies to make the most of these impressively large telescopes.

The elegant truss tube design was carefully engineered to combine ease of use, extreme portability, and consistent performance in an affordable package. Unlike other truss tube designs, the Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces (optical tube and rocker box) that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening and even after being collapsed! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The patented Freedom Find dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

The Flextube SynScan series seamlessly combines the convenience and affordability of the traditional Dobsonian with the performance and precision of a computerized GoTo telescope all to help you in your quest for big aperture views.

Additional Features:

• Large 203mm aperture delivers dazzling views, 1200mm focal length, f/5.9 focal ratio
• Built-in Wi-Fi telescope control
• Innovative collapsible design for portability, storage, and back focus for astrophotography all while retaining collimation
• 814x more light-gathering power than the human eye
• Patented Freedom Find™ technology uses dual encoders to allow manual control while retaining alignment
• Patented tension control handle allows for precise slewing and maximum stability
• Parabolic primary mirror with Radiant™ Aluminum Quartz (RAQ™) coating for 94% light reflectivity
• Heavy-duty rocker box with Teflon™ bearings provide a stable base with smooth motion
• 2-inch single-speed Crayford-style focuser with 1.25-inch adapter allows for use of nearly any eyepiece
• 9x50 straight-through finderscope, 10 and 25mm 4-element 1.25-inch Plössl eyepieces, and SynScan hand controller with 42,000+ object database included

 

Technical Specifications

Optical Info
Optical Design	Newtonian
Mirror Coatings	Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
Glass Type	Borosilicate
Primary Aperture (mm)	203
F/Ratio	5.9
Focal Length (mm)	1200
Secondary Diameter	48mm
Secondary Obstruction (by diameter)	24%
Secondary Obstruction by Area	6%
Observational Info
Dawes Limit	0.57
Rayleigh Limit	0.69
Limiting Mag.	14
Minimum Magnification	29
Maximum Magnification	400
Light Gathering (compared to next size down)	78%
General Info
Focuser	2" Crayford
OTA Length (Retract/Ext.)	33"/44"
OTA Outer Diameter	9.375"
OTA Weight (with accessories)	24.2
Dob Base Weight	33
Dob Base Measurements	30"x20"
Zenith Eyepiece Height	47"
Accessories
Included Finder	9x50 Finder
Included Diagonal	No
Included Eyepieces	25/10 Plossl
Magnification w/ Included Eyepieces	48x/120x
Included Case	No
Corrector	No

In the Box

• Sky-Watcher Flextube 200Pi Synscan Dobsonian
  
• GoTo Dobsonian Base
  
• 9x50 Straight-Through Finderscope
  
• 2" Crayford-Style Focuser with 1.25" Adapter
  
• 25 mm Plossl Eyepiece - 1.25"
  
• 10 mm Plossl Eyepiece - 1.25"
  
• Synscan WiFi Adapter
• SynScan Hand Controller NOT INCLUDED
  

Warranty & Manuals

Sky-Watcher 2-Year Warranty