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Meade LX850 14" ACF
Advanced Coma Free - UHTC Optical Coatings - Computerised Goto Mount
To order this item outside mainland Britain or Highlands & Islands, please contact us.
Meade LX850 14" ACF
  • 14" Advanced Coma Free (ACF) optics
  • Focal Length: 2845mm
  • Focal Ratio: f/8
  • Ultra-High Transmission Coatings (UHTC)
  • 50mm Viewfinder
  • HD-60 25mm, long eye relief, premium eyepiece
  • Heavy duty German Equatorial Mount: 40kg capacity
  • Meade Autostar II Goto Handset
  • Complete StarLock autoguide system
  • Includes 5A 12VDC Power Supply Unit
  • Optional Focal Reducer / Field Flattener: f/5
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Meade LX850 14" ACF
Package includes:
  • Meade 14" ACF f/8 optical tube with UHTC optical coatings.
  • Meade LX850 Heavy Duty Equatorial Mount and Tripod.
  • Autostar II Hand Controller (GoTo).
  • HD-60 25mm, long eyerelief premium eyepiece.
  • Meade UK Warranty.
  • OFFER: Please refer to the right hand column on this page.
Optional Accessories
Meade 4000 Series Super Plössl Eyepiece & Filter Set. + £192.00
Meade LXPS 17 Rechargeable Power Supply + £125.00
Order No. Price (inc_VAT) Shipping Delivery click button to purchase
MEDLX850T14 £ 11595.00 £ 0.00
LX850 Telescope
Flyer (PDF)
Sky & Telescope
Review (PDF)
LX850 Manual
(PDF)
LX850 Base Pattern
(PDF)
Meade & Coronado
catalogue (PDF)

Outline
The Meade LX850™ with StarLock™ has been designed from the ground up to be the ideal astro-imaging platform. Drawing on over 39 years of experience and innovation, Meade Instruments introduces the latest in a long line of advanced astronomical products: the LX850. Using revolutionary new technology, every aspect of this amazing telescope system has been designed to deliver the new standard in astrophotographic and visual performance.

Fast f/8 Advanced Coma-Free (ACF) Optics
Building on Meade’s award-winning Advanced Coma-Free™ (ACF™) optics, the LX850 employs a fast f/8 optical system with high-contrast baffling that assures crisp, pinpoint imaging to the very edge of the field. The all-new OTAs feature an internal Crayford-style, zero image-shift focusing system with a two-speed, 7:1 control that rigidly holds the primary mirror, eliminating the need for a mirror lock. In addition, with the LX850s optional large-format, three-element f/5 focal reducer/field flattener, you gain even wider fields, faster exposures and a flat field on larger sensors.

Meade LX850 Series
The Meade LX850 series.

Telescope Specification
. LX850 10" ACF LX850 12" ACF LX850 14" ACF
Clear Aperture 10 inches 12 inches 14 inches
Optical Design Advanced Coma Free (ACF) Advanced Coma Free (ACF) Advanced Coma Free (ACF)
Focal Length 2032mm 2438mm 2845mm
Focal Ratio f/8 f/8 f/8
Telescope Mounting Heavy Duty Germal Equatorial Heavy Duty Germal Equatorial Heavy Duty Germal Equatorial
Optical Tube Mounting Losmandy-style mounting plate Losmandy-style mounting plate Losmandy-style mounting plate
Optical Coatings Ultra-High Transmission Coatings (UHTC)
Resolving Power (Dawes Limit) 0.456 arcseconds 0.380 arcseconds 0.326 arcseconds
Secondary Obstraction 20.95% 16.86% TBD
AutoStar Controller Autostar II Autostar II Autostar II
Object Database 145,000 objects 145,000 objects 145,000 objects
Viewfinder 8x50mm with cross hair reticle
Eyepiece HD-60 25mm, long eye relief, premium eyepiece
Diagonal 1.25" diagonal prism 1.25" diagonal prism 1.25" diagonal prism
Optional Focal Reducer / Field Flattener 2" diam., 3 element, fully multi-coated, f/5 (designed specifically for f/8 ACF)
Optimal back focus distance at f/8 TBD TBD TBD
Optimal back focus distance at f/5 3.5 inches 3.5 inches 3.5 inches
Focus System Internal Crayford style zero image-shift primary mirror focus with dual speed 7:1 control
Primary Mirror Lock Not required due to internal Crayford style primary mirror focusing system
Slow Motion Controls Electronic Electronic Electronic
Control Panel 12v DC in, 12v DC out, Power, Focuser, Reticle, Handbox port, 1 computer connection port (RS232), 1 Starlock port, 1 Aux guide port
Total Instrument Capacity 40.80kg (90 lbs) 40.80kg (90 lbs) 40.80kg (90 lbs)
Counterweights Included 1 x 10 kg
(22 lbs)
Included 2 x 10 kg
(22 lbs)
Included 3 x 10 kg
(22 lbs)
Zero Image-Shift Microfocuser optional optional optional
Accessory equipment mounting system Optional Series 5000 Auxilliary Equipment Mounting System
Power 12v DC 5 amp, using supplied Meade Universal Power Supply
Materials
Primary Mirror Low-expansion borosilicate glass
Secondary Mirror Individually figured with primary mirror for maximum correction. Low-expansion borosilicate glass
Correcting Plate/Lens Aspheric high spectral transmission Borofloat glass from Schott AG Germany
Optical Tube Aluminium Aluminium Aluminium
Weights and Dimensions
Optical Tube Weight (OTA) 14.9kg (33 lbs) TBD TBD
Optical Tube Shipping Weight (OTA) 20kg (44 lbs) TBD TBD


Precision machined German Equatorial mount
Constructed of machined stainless steel and aircraft grade 6061-T6 aluminium, the LX850 mount presents a rock-solid platform with precision roller bearings on both axes. Its .68 inch diameter brass worms and 5.8 inch diameter, 225-tooth aluminium gears deliver smooth, precise movement with up to a 90 pound instrument load. Add to this internal cabling and the AutoStar II fully-computerized GoTo system with GPS, with a database of over 144,000 objects. All this sets atop a new ultra-stable tripod.

Internal cabling
The LX850 mount includes internal channels for routing mount cables as well as cables from your accessories. No more cable snags during your imaging sessions!

Threaded stainless steel counterweight shaft
The LX850 includes a 1.75" diameter threaded stainless steel counterweight shaft with 18 lb. threaded stainless steel counterweights for easy and safe adjustments to telescope balance.

Meade LX850 mount head
The LX850 mount head.

LX850 Series - StarLock™
StarLock — the heart of the LX850 — is the revolutionary new technology that makes target acquisition and ultra-precise guiding corrections a snap. StarLock is an integrated two-camera sensor array that provides four primary functions.

Full-Time Automatic Guide Star Selection and Auto-Guiding - Any time the telescope is slewed to a target, StarLock automatically identifies a suitable guide star as faint as 11th magnitude and locks on. Once locked on, the StarLock will provide guide corrections until you slew to another target or turn it off. It’s all automatic. And unlike standard autoguiders that issue guide corrections in the form of speed and time, the StarLock speaks directly with the motor controllers providing specific commands. The result is more accurate and faster guide corrections.

Ultra-Precision Pointing – StarLock uses its two cameras to refine pointing to an incredible accuracy of one arc-minute, which ensures the object you select will end up on your imaging sensor, a must of those faint objects you can not see visually to confirm position.

Drift Alignment Assist – After alignment, StarLock uses its two cameras to automatically select and GOTO two candidate stars then uses its 80mm f/5 guiding optic to snap a 30 second exposure. The telescope then calculates the distance it the mount must be adjusted to be precisely aligned to the celestial pole and then moves the optical tube the calculated distance so you can re-center the candidate star using the altitude and azimuth controls on the mount head. This dramatically speeds up the drift alignment process.

Lightswitch Alignment – Borrowing from our award-winning Lightswitch line of telescopes, the LX850 and StarLock can select and automatically center alignment stars using its two cameras, thereby taking the guesswork out of alignment.

StarLock
Meade LX850 14" ACF
The LX850 14" ACF.

Specification of Meade LX850 mount
Mount Body Machined from solid 6061-T6 Aircraft grade Aluminium and stainless steel
Finish Anodized Aluminium and stainless steel
Main gear - R.A. & Dec. 5.8 inch under cut 225 tooth aluminium
Worm gear - R.A. & Dec. 0.68 inch diameter precision machined brass
Counterweight shaft 1.75 inch diameter, 12 inch long threaded stainless steel
Counterweights 18 lb. threaded stainless steel.
Quantity: Mount only - 1, 10 inch- 2, 12 inch- 2, 14 inch - 4, 130mm APO - 1
Drive Motors DC Servo motors with encoders, both axes
Tracking distance past meridian 20 degrees
Optical Tube Mounting System Losmandy-style dovetail
Instrument Payload Capacity 40.80 kg (90 lbs)
Latitude range TBD
Tripod Giant folding adjustable tripod with 3 inch diameter aluminium legs.
Height from 29 inches to 45 inches.
Mount body weight 25 kg (55 lbs).
Counterweight shaft and cap weight 8 kg (17.8 lbs).
Counterweights 8 kg (18 lbs).
Tripod weight 16.3 kg (36 lbs).
Control Panel 12v DC in, 12v DC out, Power, Focuser, Reticle, Handbox port, 1 computer connection port (RS232), 1 StarLock port, 1 Aux guide port
Computer Control AutoStar II GoTo system
Database Over 144,000 Objects, Catalogs included: Index catalog (5,386); NGC catalog (7,840); Partial Caldwell catalog (109); Messier catalog (110); Earth orbiting satellites (26); Planets (9); Uppsala galaxy catalog (12,940); Morphological catalog of galaxies (12,939); General catalog of variable stars (29,364); SAO and Hipparcos star catalogs (42,277); Draper star catalog (21,160); Yale bright star catalog (8,977); Large Bright Quasars Survey (1,055); Namd objects (4,313); Herschel catalog (400); Abell catalog of galaxy clusters (2,712); Arp catalog of irregular galaxies (635); Lunar features (1,754); Asteroids and comets (120); Constellations (88); Solar/Lunar eclipses, meteor showers (492).
Computer Hand Control Double line, 16 character Liquid Crystal Display; 20 backlit LED buttons
GPS yes
Home Sensors Both RA and Dec axes
Internal Clock Yes
Internal Cabling Yes
Slew Speeds 3 degrees/second
Tracking Rates 0.01x to 1x, 2x, 8x, 16x, 1/4º, 1/2º, 1º, 3º
Tracking Modes EQ North and EQ South
Alignment Procedures 2-Star Align, 1 Star Polar Align, StarLock assisted drift align
Power 12v DC 5 amp, using supplied Meade Universal Power Supply
StarLock
Wide Field Camera 25mm x 26mm f/1.04 optic with 1/2 inch format CMOS sensor gives field of 14.72 x 11.78 degrees
Narrow Field Camera 80mm x 400mm f/5 optic with 1/2 inch format CMOS sensor gives field of 57.2 x 45.8 arcminutes (2.68 arcseconds/pixel)
High Precision Pointing +/- 1 arcminute
High Precision Guiding +/- 1 arcsecond RMS (with good seeing, 1-4 second correction update rate depending on star magnitude. Faintest guide star 11th mag.
High Precision Alignment Semi-automatic drift align procedure for ultra-precise polar alignment
StarLock Weight 2.72 kg (6 lbs).


Notice
We are constantly checking the accuracy of the technical data. We are prepared to provide more detailed information on request. Technical data is subject to change without notice.

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Promotional Offer
Cash Back on Opticstar
Imaging Products
updated: 1st August 2017
Opticstar cashback offer.

Customers who purchase any Meade telescopes or Meade optical tubes or Meade mounts listed on this page qualify for a 10% cash back on any Opticstar astronomy cameras purchased at the same time or at a later date.

This offer is valid for 1 year commencing on the date that the Meade product is purchased from the Opticstar website or the Opticstar showroom.

Any additional purchases at a later date of Meade products that qualify for this offer will renew the cash back period to 1 full year.

Opticstar astronomy cameras that qualify for this offer include the following: Once an Opticstar CCD or CMOS camera has been purchased within a year of the qualifying Meade purchase, the cash back can be claimed by contacting Opticstar by email or over the phone quoting the receipt number(s). Please allow up to 14 days to process the payment.

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