Celestron Omni XLT Alt-Az 4" f/6.5 Refractor Telescope has been discontinued, here are some related products you might like:
Celestron Omni XLT Alt-Az 4" f/6.5 Refractor Telescope
Overview
Description
Designed for both astronomical and terrestrial use, Celestron 's Omni XLT Alt-Az 4" f/6.5 Refractor Telescope is an ideal instrument to introduce beginner viewers to astronomy by giving them a complete setup for viewing the Moon, planets, meteor showers, and bright, deep-sky objects. Its manual alt-azimuth mount has slip clutches and slow-motion controls on both axes for precise tracking. The mount's single fork-arm design enables the optical tube to be aimed at or near the zenith for astronomical use, and pointed downward past the horizon for terrestrial viewing on a deck, through a window, or from an observational platform.
A 90° erector prism is included that corrects image inversion and flips for use on land. A single 1.25" diameter barrel eyepiece is included that yields 26x power or 78x with the included 3x Barlow lens. Any 1.25" eyepiece and accessory will fit the focuser and Barlow lens to add greater versatility to the scope. Its adjustable-height aluminium tripod provides a stable observation platform, and its maximum height of 49" allows for comfortable viewing by most users. An integrated dew-shield helps to prevent condensation on the objective lens, while blocking stray terrestrial peripheral light from interfering with celestial observations.
Features
Optical Performance
- 4" aperture
- f/4.6 focal ratio
- 660mm focal length
- Proprietary XLT anti-reflection coatings
- Fully multicoated optics
Mount & Tripod
- Manual single fork alt-az
- Dual-axis slip clutches for fast pointing/aiming
- Dual slow-motion cables
- Point OTA at or near the zenith for astronomical use
- Point OTA downward for terrestrial use on deck or window
- Two-stage aluminium tripod with accessory tray
- Adjustable height up to 49"
Viewing
- 1.25" rack-and pinion-focuser
- 25mm Plossl eyepiece yields 26x power
- 3x Barlow lens triples the magnification of any eyepiece
- 90° erector prism corrects image orientation for terrestrial use
- StarPointer Pro red-dot finderscope projects dual-circle reticle that won't obstruct distant objects
Specifications
Optical Design | Refractor |
Aperture | 4" / 10.2 cm |
Focal Length | 660mm |
Focal Ratio | f/6.5 |
Eyepiece Barrel Diameter | 1.25" |
Diagonal | 90° erect-image |
Finderscope | StarPointer Pro red-dot finder |
Tripod | Material: Aluminium Max height: 49" / 1.2 m |
Mount Type | Manual alt-az |
Power Source | None |
Optical Tube Dimensions | Length: 32.0" / 81.3 cm |
Weight | 13.8 lb / 6.3 kg, total including mount and tripod |
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Details
- Product: Celestron Omni XLT Alt-Az 4" f/6.5 Refractor Telescope
- Manufacturer: Celestron
- Model: 22150
- SKU: 22150
- RM Product #: 38692