User manual
Sky-Watcher StarTravel 102mm f 4.9 AZ

User Manual for Sky-Watcher StarTravel 102mm f 4.9 AZ Refractor Telescope

• Product category: Refractors Sky-Watcher
• Brand: Sky-Watcher
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Sky-Watcher Refractors

Product description

Optical Tube Assembly
• • Large 102mm aperture makes it ideal for viewing the moon, planets, and bright deep-sky objects like binary stars, clusters, and galaxies
  • Fast f/4.9 focal ratio reduces exposure times during astrophotography without sacrificing image quality, detail, or brightness
  • 500mm focal length helps to produce the fast focal ratio and makes the optical tube short for easier transport to remote observing locations
  • Two-element air-spaced achromatic refractor design produces rich views with reduced chromatic aberration and requires little maintenance
  • Anti-reflection fully multi-coated optics maximize light transmission to ensure views are bright and clear with improved contrast and clarity

Focuser
• • Sturdy rack-and-pinion design can easily carry larger and heavier eyepieces, accessories like Barlows and focal reducers, and imaging systems
  • Large 2" drawtube provides unrestricted light throughput to ensure views are bright, along with complete coverage of camera sensors
  • 2" holder enables large 2" eyepiece accessories to be used without the need for adapters
  • Standard T-2 mounting threads on drawtube provide a solid connection point for astrophotography rigs or DSLR cameras equipped with optional camera-specific T-ring

Mount & Tripod
• Mount:
  • Manual alt-azimuth design
  • Simple dovetail saddle makes setup and breakdown fast and easy
  • Cradle ring assembly allows the OTA to be precisely placed and oriented for proper balance and ideal viewing position
  • Long slow-motion cables enable precise alignment and tracking with reduced vibration to make views clearer
  Tripod:
  • Lightweight and sturdy aluminum legs
  • Adjustable height accommodates a wide variety of users and viewing positions
  • Tray holds accessories like eyepieces and filters and provides a convenient place for a compass or cell phone to keep them safe and off the ground

Included Accessories
• Eyepieces:
  • 1.25" nosepiece makes them compatible with the most popular size drawtubes, focusers, and accessories like filters, Barlows, and diagonals
  • 25mm eyepiece produces a low 20x power that allows users to see wide areas for observing the moon and constellations and scan the sky for comets
  • 10mm eyepiece yields 50x magnification to make detailed observations with a smaller field of view
  Diagonal:
  • 1.25" nosepiece and holder make it compatible with a wide assortment of eyepieces, accessories, and focuser drawtubes
  • 45° viewing angle places the user's head in a comfortable viewing position when the telescope is parallel to the ground or pointed high overhead
  • Integrated erecting prism corrects the image vertically and horizontally, allowing the telescope to be used as a conventional spotting scope
  Reducer adapter:
  • Allows the use of 1.25" accessories to be used in the larger 2" drawtube
  Finder:
  • Red dot design provides a wide field of view to make alignment fast and star-hopping navigation easy
  • Provides an easy-to-see center aiming dot to make centering your target object simple

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Technical parameters

Sky-Watcher StarTravel Specs

Optical Design	Achromatic Refractor
Aperture	102 mm / 4"
Focal Length	500 mm
Focal Ratio	f/4.9
Focuser	Single-Speed Rack-and-Pinion
Eyepiece Barrel Diameter	1.25", 2"
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