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Catadioptric Telescope. Objective lens diameter: 203mm. Focal length: 2000mm

Catadioptric
Optical design
203
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
2032
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 71694
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824208995
Package size (LxWxH) 34x96x76 cm
Shipping Weight 29.06 kg
Description

The patented Meade Advanced Coma-Free (ACF) optical design offers the coma-free pinpoint star images and flatter image fields greatly desired by discerning amateur astronomers, astrophotographers and professional observatories alike. This system also reduces the astigmatism and eliminates the diffraction spikes found in classical Ritchey-Chrétien designs. No competing Schmidt-Cassegrain Telescope can make those claims.

The 8" LX90 has an 8” diameter f/10 ACF optical system (focal length 2000mm) and Ultra-High Transmission Coatings (UHTC) for maximum image brightness and contrast. Electronics include the advanced Meade AudioStar computer system with over 30,000 object library, multiple guided tours, high precision pointing capability, and Meade smartdrive with permanent periodic error correction.

Precise and quick star alignment is done near effortlessly with an incorporated 16 channel genuine Sony GPS receiver. The AudioStar is flash-updatable via free downloads at Meade.com (optional cable required).

All LX90 models feature the solid and stable LX90 aluminum double fork mount, with fast slew speed adjustable from 1º to 7º per second. Fine slewing and photographic guiding speeds can be adjusted from .01x to 1x sidereal in one one-hundredth increments. The mount and all electronics are internally powered by 8 (user supplied) C-cell batteries which will typically operate the telescope for a generous 60 hours. The mount also has mechanical locks in both axis allowing adjustment even without power.

The LX90 comes fully equipped with a heavy duty height adjustable Meade field tripod, 1.25" diagonal mirror, Series 4000 26mm 5-Element Plössl eyepiece, and Meade Autostar Suite Astronomer Edition Software for PC and an 8x50 optical viewfinder with quick release bracket. Scope weight is 15kg with 8.6 tripod. Ships in 2 boxes.

Features:

  • 8" f/10 Advanced Coma-Free Optics – 2000mm focal length
  • Ultra-High Transmission Coatings (UHTC)
  • Standard field tripod
  • AudioStar handbox with speaker and Astronomer Inside
Specifications
Product ID 71694
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824208995
Package size (LxWxH) 34x96x76 cm
Shipping Weight 29.06 kg
Optical design catadioptric
Optical scheme Schmidt–Cassegrain
Optics coating UHTC
Objective lens diameter (aperture), mm 203
Focal length, mm 2032
Highest practical power, x 400
Magnification, x 34
Aperture ratio f/10
Resolution threshold, arcseconds 0.56
Limiting stellar magnitude 14
Eyepiece barrel diameter, in 1.25
Close focus, m 8.25
Finderscope optical, 8x50
Tripod height (adjustable), mm adjustable, 760–1280
Tripod weight, kg 8.5
Mount alt-azimuth, fork, dual arm
Telescope installation platform alt-azimuth; can be installed in equatorial mode with the help of an equatorial platform (purchased separately)
Built-in sensors GPS
Slew rate from 2-daily to 6.5 degrees per second (8 speeds)
Tracking rate daily
Positioning accuracy standard: about 2
Speed selection automatic (guiding), manual (if position is corrected)
Periodic error correction (PEC)
Input observation location
Input date and time
Ports RS-232, ports for AutoStar remote control, StarLock system, for connecting an electric focuser etc.
Guiding system alignment reference stars with the manual centering of the star in the field of view
Autoguider
Programmable options night sky excursion mode with audio lecture, automatic search in the database, autoguiding (GoTo)
Objects database over 30,000 objects
Update via Internet for catalogues of artificial Earth satellites, asteroids, comets
Ability to connect additional equipment camera via #T-62 adapter and bayonet adapter ring (not included)
Power supply 12V car cigarette lighter, resource with AutoStar: about 60 hours, 8 C batteries, 220V network adapter, 12V
Optical tube dimensions, mm 231х425.5
User level experienced users
Observed object planets of the Solar System and deep-sky objects
Video