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A serious scope

The Celestron Omni XLT 150 is a serious telescope for the dedicated amateur astronomer. You won't see a lot of gadgetry on this scope, just careful craftsmanship and optimized performance. The lenses and mirrors are hand selected and made from high-grade optical glass, so they provide sharp, well-lit images of deep-space objects. The equatorial mount features setting circles and slow-motion controls for manual tracking of your target over time. A pre-assembled tripod with 1-3/4" stainless steel legs provides a rock-solid base for the entire assembly.

More light for clear viewing

The 150mm aperture on the XLT 150 gathers plenty of light. That's crucial when you want to look at dim and distant objects like galaxies, nebulae, and star clusters. Celestron's StarBright XLT coating on the primary mirror makes sure that light reaches your eye, so you see stars, planets and deep-space objects in their full glory. This scope is versatile enough to allow detailed photographs of the moon and colorful images of Jupiter and Saturn. The sky's the limit.

Product Highlights:

  • high-quality lenses and mirrors are hand-selected for high optical performance
  • StarBright XLT coating system enhances light transmission for viewing deep-space objects
  • equatorial mount with ball bearings in both axes for smooth tracking
  • mount accepts add-on motor drive (not included) for long-exposure photography
  • aperture: 150mm
  • 25mm eyepiece included (1-1/4" diameter)
  • highest useful magnification: 354X
  • 30X maximum magnification with included eyepiece
  • 750mm focal length
  • light gathering power 459X that of the human eye
  • 6x30mm finderscope helps locate objects for telescope viewing
  • tripod with solid 1-3/4" steel legs included
  • 26.5" optical tube
  • weight: 24.5 lbs. (with tripod)
  • warranty: 2 years parts and labor
  • Our 60-day money-back guarantee

Celestron Omni XLT 150 Reviews

Hands-on research

What's in the box?

Download owner's manual

  • The Omni XLT 150 is shipped in two separate boxes.
  • Box 1 Contains:
  • Omni XLT 150 telescope tube with 2 tube rings installed
  • Finderscope (with 2 caps)
  • Finder bracket
  • Rubber O-ring
  • 25mm Eyepiece (with cap)
  • Eyepiece adapter (2" diameter)
  • 2mm Allen wrench
  • Celestron The SkyX First Light Edition Astronomy Software CD-ROM
  • Owner's Manuals on CD-ROM
  • Instruction Manual
  • Product Registration card
  • Box 2 Contains:
  • Tripod with 1.75" stainless steel legs
  • Accessory tray/leg brace
  • Equatorial mount
  • Counterweight bar
  • Counterweight (7 pounds)
  • Counterweight (4 pounds)
  • Counterweight bar locking nut
  • Polar axis cap
  • 3 Wrenches
  • Screwdriver tool
  • Phillips-head screwdriver
  • R.A. slow motion knob
  • Declination slow motion knob
  • Celestron The SkyX First Light Edition Astronomy Software CD-ROM
  • Owner's Manuals on CD-ROM
  • Instruction Manual
  • Product Registration card

Product Research


Overview: The Omni XLT 150 by Celestron is a high-quality Newton Reflector telescope, designed for intermediate astronomers. The XLT 150 comes with an Omni CG-4 Equatorial mount, a 25mm multi-coated eyepiece, a 6x30 finderscope, a center leg brace that doubles as an accessory tray, and a heavy-duty tripod with 1-3/4" diameter stainless steel legs and a built-in bubble level.

Newtonian Reflector: Newtonian Reflector telescopes replace heavy lenses with mirrors to collect and focus the light, providing much more light gathering power than refracting telescopes. It uses a single concave mirror as its primary element. Light enters the telescope and travels to the mirror in the back end. The mirror bends (focuses) the light forward to a single focal point. A flat mirror (diagonal) intercepts the light and points it out the side of the tube to the eyepiece. A Newtonian Reflector telescope offers such impressive light-gathering characteristics you can view some deep space objects, even with a modestly-priced unit.

Optics: The XLT 150 features high-quality optics with each lens and mirror being hand selected. Only the finest grade of optical glass is used. The premium Celestron StarBright XLT optical coatings provide maximized light transmission, contrast, and image sharpness.

Eyepiece: The telescope comes with a 1-1/4" diameter, 25mm multi-coated eyepiece (30x magnification) with 20mm eye relief and a 50° Field of View. Higher power eyepieces are available for the XLT 150 to give you a closer look at your chosen object. The unit comes with a 1-1/4" eyepiece adapter installed on the unit. If you wish to use 2" diameter eyepieces, you can replace the 1-1/4" adapter with the supplied 2" eyepiece adapter.

CG-4 Equatorial Mount: The included CG-4 equatorial mount allows you to manually adjust the telescope and fine-tune the motion on both R.A. and Dec. axes. There are slow motion knobs on each axis to make small adjustments. The mount is equipped with ball bearings on each axis for smooth performance. You can also make adjustments in altitude and azimuth alignment with separate adjustment screws. To eliminate undue stress on the mount, the telescope includes two counterweights to balance the unit: one is 7 pounds, while the other is 4 pounds.

Finderscope: The telescope comes with a 6x30 finderscope which mounts to the outside front of the telescope tube to help you aim the telescope at a distant target. The finderscope must first be aligned with the telescope before use.

Included Software: Included with the telescope is "TheSkyX -- First Light Edition" astronomy software on CD-ROM. The disc contains a 10,000 object database with printable sky maps and 75 enhanced images.


  • Optical Design: Newtonian Reflector
  • Aperture: 150mm (5.91")
  • Focal Length: 750mm (30")
  • Focal Ratio: f/5
  • Eyepiece Focal Length: 25mm
  • Eyepiece Magnification: 30x
  • Highest Useful Magnification: 354x
  • Lowest Useful Magnification: 21x
  • Optical Tube Length: 26.5"
  • Light Gathering Power: 459x (compared to human eye)
  • Weight (with tripod): 45.5 pounds
  • Overall Dimensions:
    • Length: 28"
    • Minimum Height (on tripod): 58.5" (including eyepiece)
    • Maximum Height (on tripod): 71" (including eyepiece)

Our Product Research Team

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