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Meade 8" LX90-ACF Telescope


A fully-automatic 8” Schmidt-Cassegrain telescope with Meade ACF optics

The Meade Advanced Coma-Free (ACF) optical design offers coma-free pinpoint star images and flatter image fields greatly desired by amateur astronomers, astrophotographers and professional observatories alike. This system also reduces the astigmatism and eliminates the diffraction spikes found in classical Ritchey-Chrétien designs. 

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 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 with an incorporated 16 channel Sony GPS receiver. The AudioStar is flash-updatable via free downloads at (optional cable required).

All LX90 models feature the solid and stable LX90 aluminum double fork mount, with fast slew speed adjustable from 1 to 7 degrees 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 eight (user supplied) C-cell batteries which will typically operate the telescope for 60 hours. The mount also has mechanical locks in both axis allowing adjustment even without power.

What's In the Box?
  • 8" f/10 Advanced Coma-Free Optics - 2000mm focal length
  • Meade Field Tripod
  • 8x50 Optical Finder
  • 1.25" diagonal mirror
  • 26mm Series 4000 5-Element Plössl eyepiece
  • AudioStar™ handbox with speaker and Astronomer Inside™
  • Meade AutoStar® Suite Astronomer Edition Software for PC
Series LX90 Telescopes
Clear Aperture 8" (200mm)
Optical Design Advanced Coma-Free (ACF)
Optical Coatings UHTC™
Focal Length 2,000mm
Focal Ratio f/10
Resolving Power (Dawes' Limit) 0.570 arc-seconds
Oversized Primary Mirror Yes
Viewfinder 8x50mm with cross-hair reticle
Eyepiece(s) 26mm 1.25" Series 4000™ Super Plössl
Focuser Mechanism Single Speed Focuser
Diagonal 1.25" diagonal mirror
Hand Controller AudioStar™
Object Database 30,000 objects
Pointing Precision (High-Precision Mode) 1.5 arc-minute (+/-)
Periodic Error Correction Polar mode only (RA)
Slow Motion Controls Electronic
Slew Speeds RA and Dec:1x, 2x, 8x, 16x, 64x, 128x sidereal and 1.5°/sec., 3°/sec., 6.5°/sec.
Tracking Rates Sidereal, Lunar, or custom-selected from 2000 incremental rates
Control Panel 12v Power port, On/Off Switch, Handbox port, 2x Aux ports
Tripod Standard Field Tripod
Power Source 8 x C cells User supplied) or Optional 12v DC, 5 amp power supply
GPS Receiver Yes
Weight Telescope 15kg, Tripod 9kg
Smart Drive™ Yes
Astronomer Inside™ Yes
Wedge Optional