Sporting the large light bucket users have come to expect from a Dob, the dobsonian telescope astrophotographygives 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.

Open Box Products Have a Limited 2-Year Manufacturer Warranty    Large 12" f/4.9 Aperture    1500mm Focal Length    Highly Reflective Borosilicate Mirror    Space-Saving Collapsible Tube Design    SynScan Controller with Built-In Wi-Fi    42,900 Object Database with Tour Option    App Available for Android and iOS    2" Crayford-Style Focuser with Reducer    60x & 150x Eyepieces, 9x50 Viewfinder    Motorized Floor-Mounted Base Mount

• 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

• 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

• 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

• 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

• 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"

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

• 2-to-1.25" reducer allows the use of the more common size eyepieces and accessories

• 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

Related Questions and Answers

Q: 1. Can I change the focusor's position to the opposite side?

A: Unfortunately no, the focuser location cannot be changed.

Q: 2. What is needed to mount this telescope on a RRS series 4 tripod?

A: The Explore Scientific FirstLight 254mm f/5 Dobsonian Telescope is about 11 inches in diameter, 65 inches tall and weighs about 50 pounds. It cannot be used on a tripod.

Q: 3. Does this telescope come with a 1.25" eyepiece adapter?

A: The Celestron StarSense Explorer 8" Smartphone App-Enabled Dobsonian Telescope BH #CESSE203DOBT • MFR #22470 comes with a 1.25" eyepiece adapter.

Q: 4. Does this goto telescope include built in wifi for phone of tablet operation along with the hand controller?

A: Yes, the Sky-Watcher Flextube 8" f/6 Collapsible GoTo Dobsonian Telescope has a Wi-Fi module for wireless control though a smartphone app. When used with the SynScan app, this gives you full GoTo capabilities.

Q: 5. Do you need to mount this on a special tripod?

A: The Celestron StarSense Explorer 8" Smartphone App-Enabled Dobsonian Telescope comes with a Dobsonian Base from Celestron, and it is a sturdy foundation for the StarSense Explorer 8" optical tube assembly. The Dobsonian base is not supposed to be mounted on a tripod.

Q: 6. Does the telescope come with a T-ring for connecting a digital camera?

A: The Sky-Watcher Classic 150P 6" Traditional Dobsonian Telescope BH #SK6TDK • MFR #S11600 does not come with a T-ring. A T-ring mounts to a camera body. A specific T-ring will need to be purchased for the make and model of your camera.

Q: 7. Does this telescope come in one box or separately?

A: The Sky-Watcher Classic 150P 6" Traditional Dobsonian Telescope is packed in 2 boxes. The telescope in one box and the base in the other.

Q: 8. what are the specs what eye pieces does it come with?

A: Specification: Telescope Aperture 254mm (10") Telescope Mount Type Dobsonian Type of Electronics Manual - No Electronics Focal Length (mm) 1200 Limiting Stellar Magnitude 14.7 Highest Useful Magnification 508 Focuser Style Crayford/Crayford Style Focuser Size 2" Focuser Speed Single Speed Eyepiece Height at Zenith (in.) 48 Telescope OTA Outside Diameter (in.) 11.375 Telescope OTA Length (in.) 45 Telescope OTA Weight (lb.) 28 Warranty Sky-Watcher 2 Year Limited Dobsonian Base Dimensions (in.) 29 x 20.5 Dobsonian Base Weight (lb.) 25 Comes with:Solid Dobsonian Rocker Mount 2" Crayford-Style Focuser with 1.25" Adapter 25 mm 1.25" Eyepiece 10 mm 1.25" Eyepiece 9x50 Finderscope

Q: 9. Can this be used for Deep Sky Photography?

A: Yes, it would be possible.

Q: 10. Do I need to buy an eye piece or does it come with one.

A: The Sky-Watcher Classic 150P 6" Traditional Dobsonian Telescope comes with 10mm and 25mm eyepieces, so it is not required to purchase extras unless you want a different magnification range.