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Meade LX90-ACF Telescopes

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AUTOALIGN™ – Telescopes with Meade’s new AutoAlign come pre-aligned. They are smart scopes that know the night sky right out of the box. AutoAlign picks two fail-proof alignment stars for you and places them right in your viewfinder. Just center them to fine tune your alignment and the wonders of the universe are at your fingertips.

The NEW LX90-ACF represents the latest step in the evolution of the LX90, featuring Meade's f/10 ADVANCED COMA-FREE OPTICS: Building from a classic RC design, Meade has created a new optical design with the same coma-free pinpoint star images and flatter field that discerning astrophotographers and most professional observatories expect. The NEW LX90-ACF with Meade’s Advanced Coma-Free system also reduces the astigmatism and eliminates diffractions spikes found in classical RCs. No competing Schmidt-Cassegrain Telescope can make those claims. The LX90-ACF is the perfect platform for the demanding visual observer and imaging enthusiast with telescopes available in apertures of 8 inches, 10 inches, and 12 inches. When it comes to industry-leading optics, depth of features, and computerized operation, the LX90-ACF is the best all-around telescope value you can find

GPS - LX90-ACF can do more than track satellites. It talks to them as well. Turn it on and the built-in Sony® GPS sensor immediately determines your precise date, time and location. AutoAlign™ then uses this info to align your scope for a tour of the most spectacular sights in the universe. With all the features of the legendary LX90GPS, plus the additon of Advanced Coma-Free optics and the ability to communicate to satellites, the new LX90-ACF now has it all

OVERSIZED PRIMARY MIRROR – Only Meade manufactures their primary mirrors in diameters larger than their listed aperture (e.g. the diameter of the 8" LX90’s primary mirror is actually 8.25").This additional 1/4" yields a wider, fully illuminated field-of-view, and allows you to see the light other telescopes leave behind.
SLEW SPEED – The LX90-ACF slews (moves) from star to star at 7 degrees per second. That is more than twice as fast as the competition. This means that over the course of an evening, a Meade LX90-ACF will show you two to three times more objects.
RIGID CAST ALUMINUM FORK MOUNT – The Meade LX90-ACF's Optical Tube Assembly is mounted on two sturdy fork arms giving you a rock solid platform for astrophotography.
LX200™ - SERIES TRIPOD – The LX90-ACF comes standard with the same sturdy field tripod as the LX200-ACF series telescope.
SMART DRIVE™ – Meade’s AutoStar® provides Periodic Error Correction (in polar mode). Over the course of one or more training periods your LX90-ACF will minimize guiding corrections during long exposure astrophotography.
AUTOSTAR CONTROLLER – Meade’s AutoStar® can be updated after purchase. Click here to download software upgrades, guided tours and timely objects like comets, satellites and new discoveries – Free! Keep your AutoStar up-to-date, and your LX90-ACF will grow with you for years to come


Specifications 8" 10" 12"
Optical Design Advanced Coma-Free Advanced Coma-Free Advanced Coma-Free
Clear Aperture 203mm (8") 254mm (10") 305mm (12")
Focal Length Focal Ratio 2000mm f/10(8") 2500mm f/10 (10") 3048mm f/10 (12")
Optical Coating MgF2 on correcting plate (2-sides); standard aluminum on primary and secondary mirrors
Ultra-High Transmission Coatings (UHTC™) Included Included Included
Optical Tube Dimensions (dia. x length) 9.1" x 16.75" 11.75" x 22" 13.6" x 25"
GPS Sony®GPS Sony®GPS Sony®GPS
LNT Module Patented Level-North Technology with electronic level sensor, electronic magnetic north sensor, high-precision clock.
Smart Finder™ Red Dot viewfinder Red Dot viewfinder Red Dot viewfinder
Viewfinder 8x50 8x50 8x50
Telescope Mounting fork-type; double tine fork-type; double tine fork-type; double tine
Setting Circle Diameters, RA and Dec. RA: 8"; Dec: 5" RA: 8"; Dec: 5" RA: 8"; Dec: 5"
Zero Image-Shift Micro Focuser optional optional optional
GO TO Pointing Precision (approx.) 5-arc mins. 5-arc mins. 5-arc mins.
Pointing Precision, High Precision Mode 3-arc mins. 3-arc mins. 3-arc mins.
Slow-Motion Controls electric, RA and Dec electric, RA and Dec electric, RA and Dec
#497 AutoStar Hand Controller PIC 16C57 microcontroller; 2 line x 16 alphanumeric character display; 20-button keypad, red LED backlit
Batteries (user-supplied) 8 x C-cells 8 x C-cells 8 x C-cells
Battery Life (approx.) 60 hrs. 60 hrs. 60 hrs.
Onboard Celestial Object Database 30,223 objects 30,223 objects 30,223 objects
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
Tube Body aluminum aluminum aluminum
Mount Castings aluminum aluminum aluminum
Primary, Secondary Mirrors Pyrex® glass Pyrex® glass Pyrex® glass
Correcting Plate/Lens clear water white glass clear water white glass clear water white glass
Telescope Weight 33 lbs. 50 lbs. 60 lbs.
Tripod Weight 19 lbs. 19 lbs. 19 lbs.
Field Tripod Height all models: 30" to 44" variable 30" to 44" variable 30" to 44" variable

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