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Catadioptric telescope. Objective lens diameter: 355.6mm. Focal length: 2845mm

Catadioptric
Optical design
355
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light
2845
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 71704
Brand Meade Instruments Corp.
Warranty 2
EAN 0643824209091
Package size (LxWxH) 85x102x98
Shipping Weight 149.5
Description

The LX850 14" F/8 ACF Telescope consists of an 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 14" 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 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 and a long eye relief for effortless, comfortable observation.

The OTA 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. Three 11.8kg counterweights that come with the mount help balance the OTA’s weight. The mount is capable of handling a payload of up to 40kg. 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".

Features:

  • 14" f/8 advanced coma free optics – 2845mm focal length
  • Meade Ultra-High Transmission Coatings (UHTC)
  • Crayford focuser
  • 40kg instrument capacity
  • StarLock automatic guider
  • AutoStar II GoTo system
  • Heavy-duty tripod
  • Zero image shift electronic micro-focuser
Specifications
Product ID 71704
Brand Meade Instruments Corp.
Warranty 2
EAN 0643824209091
Package size (LxWxH) 85x102x98
Shipping Weight 149.5
Optical design catadioptric
Optical scheme coma-free Schmidt–Cassegrain
Optics material borosililate glass with a low coefficient of thermal expansion
Objective lens diameter (aperture), mm 355
Focal length, mm 2845
Lowest practical power, x 60
Highest practical power, x 850
Aperture ratio f/8
Resolution threshold, arcseconds 0.326
Limiting stellar magnitude 15.2
Eyepiece barrel diameter, in 1.25
Finderscope optical, 8x50 with reticle
Focuser Crayford, 2-speed (1:7), backlash-free
Tripod aluminum
Tripod height (adjustable), mm adjustable, 740–1140
Tripod weight, kg 16.3
Telescope control autoguide
Mount equatorial
Setting and positioning system LightSwitch
GPS receiver integrated
Latitude adjustment range, ° 10 — 70
Bearings roller, 80mm
Mount dimensions, mm 305x203x355
Mount weight, kg 27.2
Maximum payload, kg 40.8
Counterweights 2
Counterweight rod length, mm 305
Counterweight rod diameter, mm 45
Counterweight weight, kg 11.8
Slew rate up to 3 degrees per second
Tracking rate customizable from 0.01 to 1x sidereal speed, 1x, 2x, 8х, 16x (1/4 °, 1/2 °, 1 °, 3 °)
Pointing accuracy 1 arcminute (+/-)
Speed selection automatic (guiding), manual (if position is corrected)
Tracking mode equatorial
Periodic error correction (PEC)
Automatic horizontal alignment
Automatic magnetic pole search
Reference stars
Ports AUX (universal port for connecting Meade accessories), RS-232, AutoStar remote control connector, StarLock system, 12V accessory power slot
Autoguider
Hand controller Autostar II
Programmable options night sky excursion mode with audio lecture, automatic search in the database, autoguiding (GoTo), time estimate of astronomical events
Objects database 144,000
Update via Internet for catalogues of artificial Earth satellites, asteroids, comets
Ability to connect additional equipment yes
Power supply 12V car cigarette lighter, 220V network adapter, 12V
Optical tube mounting mode dovetail plate
Dovetail mount
Optical tube weight, kg 28.6
User level professionals
Observed object planets of the Solar System and deep-sky objects
Video