Meade LX850 10" f/8 Telescope System with German Equatorial Mount and StarLock

Meade LX850 10" f/8 Telescope System with German Equatorial Mount and StarLock

Meade LX850 10" f/8 Telescope System with German Equatorial Mount and StarLock

B&H # MELX850EMK10 MFR # 1008-85-01

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Product Highlights

  • 10" f/8 ACF Optics
  • Focal Length of 2,032mm
  • Meade UHTC Optical Coating
  • Meade HD-60 25mm Eyepiece
  • Heavy-Duty German Equatorial Mount
  • Meade Starlock Full-Time Autoguider
  • Autostar II GoTo System
  • Internal GPS
  • Two 26 lb Counterweights
  • Sturdy Tripod with Anti-Vibration Pads
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Meade LX850-ACF overview

  • 1Description

The LX850 10" f/8 Telescope System with German Equatorial Mount and StarLock from Meade Instruments consists of a 10” f/8 Advanced Coma-Free (ACF) Optical Tube Assembly (OTA), Starlock Dual Imager Full-Time Autoguider, AutoStar II GoTo System, a German Equatorial Mount, and a heavy-duty tripod.

The LX850 Telescope’s OTA features 10” f/8 ACF optics with high-contrast baffling that allows for a wider, flatter field and ensures that pinpoint star images are visible even at the very edge of the field of view. Meade’s UHTC (Ultra-High Transmission Coatings) on the OTA optics reduce light loss through reflection or transmission, and allow for high image brightness and contrast. Thanks to the ACF optics, this telescope ensures reduction in astigmatism and elimination of diffraction spikes. The LX850 telescope comes with the HD-60 25mm Eyepiece that has a large, 60° apparent field of view (AFOV) and a long eye relief for effortless, comfortable observation.

The OTA of the telescope system is held in its place by the precision-machined, heavy-duty German Equatorial Mount. This mount is built using high-quality stainless steel and aircraft grade 6061-T6 aluminum alloy for durability. The mount comes with Meade’s Starlock full-time autoguider that is capable of capturing even a faint 11th magnitude star.

The telescope comes with the Autostar II GoTo system that can command it to automatically slew to any of the 144,000 objects in its library. Other features include a GPS receiver, precision roller bearings on both axes, precision pointing and assisted drift alignment, 5.8" 225-tooth polished bronze worm/gear drives with low periodic error, fine manual adjustment controls on both axes, illuminated reticle output port, and internal cable routing. Two 26 lb counterweights that come with the mount help balance the OTA’s weight. The mount is capable of handling a payload of up to 90 lb.

The whole system is mounted on a steady tripod that features 3” thick legs. The height of the tripod is fully adjustable from 29 to 45".

Optical Tube Assembly

10", f/8 ACF optical system produces wider, flatter fields with no coma for pinpoint stars out to the edge of large imaging sensors or extreme wide-angle eyepieces
Internal Crayford-style, zero image-shift primary mirror focus with dual speed 7:1 focus control that eliminates image shift and mirror flop
Crayford-style focusing knobs allow you to move the telescope's primary mirror in a finely-controlled motion to achieve precise image focus
Telescope system can be focused on objects from a distance of about 200' (60.96m) to infinity
8 x 50mm viewfinder is a wide-field sighting scope with crosshairs that enable easy centering of objects in the telescope eyepiece
Adjustment of the included viewfinder collimation screws lets you align the viewfinder, so you can view the sky you want to
2" star diagonal with 1.25" adapter holds the eyepiece upright for easy viewing and provides a more comfortable right-angle viewing position, eliminating any back aches due to prolonged observation
ACF collimation adjustment screws can be used to fine tune the OTA's optical alignment
Low-expansion borosilicate glass primary mirror
Low-expansion borosilicate glass secondary mirror is individually configured with the primary mirror for minimum correction
Correcting Plate/Lens: Aspheric high-spectral transmission Borofloat glass from Schott AG, Germany
Zero image shift micro-focuser is used for precision remote focusing

German Equatorial Mount

Mount body is machined from solid 6061-T6 aircraft-grade anodized aluminum and stainless steel
AutoStar II Handbox can be used to command the telescope to automatically slew to any object in the night sky
Handbox holder provides a convenient place to store your AutoStar II box and keeps it close at hand for easy access
Starlock Permanent Periodic Error Correction allows for correction retention in the AutoStar's memory until it is overwritten
StarLock Narrow Field OTA can be used to precisely guide the LX850 StarLock system
StarLock Widefield OTA allows you to orient the telescope in relation to the sky
Control panel comes with an on / off switch, 12VDC power connector, electronic focus port, illuminated reticle eyepiece port, 12VDC output, handbox port, RS232 port, StarLock port, auxiliary autoguider port
Double line, 16-character LCD and 20 backlit LED buttons
Semi-automatic drift align procedure allows for precise polar alignment
Latitude adjustment and lock knobs as well as azimuth adjustment knob and lock bolts
Altitude Scale allows you set the latitude of the observing site using the latitude adjustment knob
GPS sensor can be used to get precise date, time, and location of your observing site using global positioning satellites
DC servo motors come with encoders on both axes
RA drive helps you precisely move the telescope around the RA axis
Dovetail Rail Safety Bolt is included for securely attaching the safety knob
Dovetail Adapter Attachment Rails: LX850 dovetail adapter accepts both the Losmandy- and Vixen-style dovetails
Carry handles can be used to help move the LX850 mount from one location to another


Leg lock can be used for locking the leg extension in place
Spreader bar rigidly holds legs open
Extension arms ensure that the tripod legs remain in the set position
Tension hub ensures that the tension in the extension arms is uniform and they remain stretched in the set position
Anti-vibration pads reduce vibrations and shorten damp-down time
UPC: 709942600506
In the Box
Meade LX850 10" f/8 Telescope System with German Equatorial Mount and StarLock
  • LX850 10" f/8 ACF OTA
  • #828 8x50 Rear-Focus Viewfinder (Blue)
  • Meade Zero Image Shift-Electronic Micro-Focuser
  • Series 5000 2" Enhanced Diagonal
  • LX850 GoTo EQ Mount with StarLock Autoguider
  • StarLock Optical Tube and Sensor Assembly
  • 26 lb Stainless Steel Counterweight for LX850 Telescope
  • Counterweight Shaft with Safety Nut
  • LX850 Field Tripod
  • LX850 Accessories
  • LX850 Control Panel
  • Autostar II Hand Controller
  • StarLock Cable
  • StarLock Counterweight
  • Custom Utility Tool
  • 5/16" Hex Head Wrench
  • DVD with AutoStar Suite and Software
  • #507 Connecting Cable with USB Adapter
  • Internal Cable Fish Tool
  • 3 x Anti-Vibration Pad
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Meade LX850-ACF specs

    Optical Design Advanced coma-free
    Clear Aperture 10"
    Focal Length 2,032 mm
    Focal Ratio f/8
    Optical Coatings UHTC
    Resolving Power Dawes limit: 0.46 arcseconds
    Secondary Mirror Obstruction 20.95%
    Viewfinder 8 x 50 mm refractor with cross-hairs
    Eyepiece HD-60: 25 mm long eye-relief eyepiece
    Diagonal Series 5000, 2.0" (50.8 mm) with enhanced 99% reflectivity
    Focus System Internal Crayford-style, zero image-shift primary mirror focus with dual speed and 7:1 control
    Mounting OTA: Losmandy-style mounting plate
    Optical Tube Aluminum
    Weight 33 lb (15 kg)
    Mount Type German Equatorial
    Gear Main
    RA & DEC: 5.80" (14.73 cm) undercut 225 tooth aluminum
    Gear Worm
    RA & DEC: 0.68" (1.72 cm) diameter precision machined brass
    Shaft Diameter Counterweight: 1.75" (4.44 cm)
    Shaft Length Counterweight: 12.00" (30.48 cm) long threaded stainless steel
    Counterweight 2 x 26.0 lb (11.8 kg)
    Weight Counterweight shaft and cap: 12.50 lb (5.66 kg)
    Tracking Distance Past Meridian 20°
    Mounting System OTA: Losmandy-style dovetail
    Payload Capacity 90.0 lb (40.8 kg)
    Latitude Range 10 to 70°
    Tripod Giant folding adjustable height tripod with 3.00" (7.62 cm) diameter aluminum legs Height from 29.00 to 45.00" (73.66 to 114.30 cm)
    Control Panel 12 VDC in, 12 VDC out, Power, Focuser, Reticle, Handbox port, 1 computer connection port (RS232), 1 StarLock port, 1 Aux guide port
    GoTo System AutoStar II
    Onboard Celestial Object Database Over 1,44,000 objects
    Catalogs Included: Index (5,386); NGC (7,840); Partial Caldwell (109); Messier (110); Earth orbiting satellites (26); Planets (9); Uppsala galaxy (12,940); Morphological catalog of galaxies (12,939); General catalog of variable stars (29,364); SAO and Hipparcos star \(42,277); Draper star (21,160); Yale bright star (8,977); Large Bright Quasars Survey (LBQS) (1,055); Named objects (4,313); Herschel (400); Abell catalog of galaxy clusters (2,712); Arp catalog of peculiar galaxies (635); Lunar features (1,754); Asteroids and comets (120); Constellations (88); Solar/Lunar eclipses, Meteor showers (492)
    Hand Controller Double line, 16-character LCD; 20 backlit LED buttons
    Sensors Home Sensors: Both RA and DEC axes
    Slew Speed 3°/second
    Tracking Rates 0.01 to 1x, 2x, 8x, 16x, 1/4°, 1/2°, 1°, 3°
    Tracking Modes EQ North and South
    Alignment Procedure: 2-Star Align, 1 Star Polar Align, StarLock assisted drift align, Easy Alignment and Align on Home
    Camera Wide-field: 25 x 26 mm f/1.04 optic with 0.5" format sensor gives field of 14.72 x 11.78°
    Camera Narrow-field: 80 x 400 mm f/5 optic with 0.5" format sensor gives field of 57.2 x 45.8 arcminutes (2.68 arcseconds/pixel)
    High Precision Pointing ±1 arcminute
    High Precision Guiding ±1 arcsecond (with good seeing; 1 to 4 second correction update rate depending on star magnitude; faintest guide star 11th magnitude
    Power Supply 12 VDC, 5A using supplied Meade Universal Power Supply
    Weight Starlock: 2.9 lb (1.3 kg)
    Weight Mount Body: 60.0 lb (27.2 kg)
    Tripod Weight 36.0 lb (16.3 kg)
    Packaging Infodwbdafzvurraezxby
    Package Weight 340.0 lb
    Box Dimensions (LxWxH) 54.5 x 42.5 x 39.5"

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