Meade LS-8ACF LightSwitch 8" f/10 Catadioptric GoTo Telescope

BH #MELS8ACF • MFR #0810-03-10
Meade
Meade LS-8ACF LightSwitch 8" f/10 Catadioptric GoTo Telescope
Key Features
  • 8" (203mm) Catadioptric OTA
  • 2032mm Focal Length, f/10 Focal Ratio
  • Advanced Coma-Free/UHTC Optical Systems
  • LightSwitch Automatic Alignment
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Ushering in a new era for amateur astronomers, the Meade LS-8ACF LightSwitch 8" f/10 Catadioptric GoTo Telescope aligns itself with virtually zero input from the user. The LightSwitch system first obtains the current day/time/location using an onboard GPS module, next the integrated CCD camera takes a series of pictures of the night sky overhead, then it references the relative positions of the objects in those pictures to the AutoStar III database to properly and accurately align itself—all in about 5 minutes. During long-exposure astrophotography, the LightSwitch system acts as an autoguider to monitor the tracking accuracy and correct any errors in real time.
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Meade LS-8ACF Overview

  • 1Description
  • 2Optical Tube Assembly
  • 3Technologies
  • 4AutoStar III Computer Hand Controller
  • 5Mount and Tripod
  • 6Astronomer Inside Multimedia
  • 7Included Accessories

Ushering in a new era for amateur astronomers, the Meade LS-8ACF LightSwitch 8" f/10 Catadioptric GoTo Telescope aligns itself with virtually zero input from the user. The LightSwitch system first obtains the current day/time/location using an onboard GPS module, next the integrated CCD camera takes a series of pictures of the night sky overhead, then it references the relative positions of the objects in those pictures to the AutoStar III database to properly and accurately align itself—all in about 5 minutes. During long-exposure astrophotography, the LightSwitch system acts as an autoguider to monitor the tracking accuracy and correct any errors in real time.

Optically, Meade utilizes their Advanced Coma-Free (ACF) catadioptric light path to reduce color fringing and off-axis comas to enable it to clearly resolve dim deep-sky objects and easily split binary stars with tack-sharp clarity. Complementing the ACF system is their Ultra-High Transmission Coatings (UHTC) system, which improves light transmission through the entire light path across the whole visible spectrum. A combination of high-transmittance lens coatings and highly reflective mirror coatings boost image brightness, while minimizing internal and external light loss and diffraction.

An aluminum single-arm alt-az fork mount carries the optical tube assembly (OTA) and runs on eight user-supplied C-cell batteries for off-the-grid observation sessions, and supporting the entire system is an adjustable-height stainless steel tripod. To get you out and observing immediately, Meade includes a relatively low-power eyepiece, a 90° star diagonal, and a red-dot finderscope. Complementing the large 8" aperture, the diagonal and visual backs are made for 2" eyepieces, accessories, and imaging gear. For observation, 2" eyepieces tend to have longer eye reliefs and wider fields of view, making it more comfortable during long observation sessions. For imaging, the larger back ensures exiting light completely covers larger camera sensors to avoid vignetting.

Ideal for making detailed lunar and planetary observations with the capability of reaching far beyond our solar system or as a powerful astroimaging rig, this user-friendly, completely automatic, fully GoTo-equipped observational platform will reveal the wonders of the universe to new and experienced amateur astronomers alike.

Optical Tube Assembly

  • 8" (203.2mm) aperture
  • f/10 focal ratio
  • 2032mm focal length
  • Advanced Coma-Free catadioptric design
  • Ultra-High Transmission Coatings (UHTC) system
  • Resolution: 0.57 arcsec, Dawes' Limit
  • Secondary mirror obstruction: 13.7%, by area
  • Single-speed internal focusing mechanism
  • 2" Schmidt-Cassegrain telescope (SCT) screw-in visual back allows the use of larger eyepieces, accessories, and photography gear, with wider fields of view, longer eye reliefs, and images that completely cover larger camera sensors

Technologies

  • LightSwitch alignment system:
  • Automatically aligns scope in about 5 minutes and requires little assistance from user
  • Utilizes the AutoStar III database, integrated Eclips CCD imaging system, and onboard GPS module
  • GPS module tells it where and when it is being set up
  • AutoStar III database tells system what stars and planets are visible overhead
  • CCD camera takes a series of photos and compares the star field to the database information to properly align itself
  • During long-exposure astrophotography, the LightSwitch system acts as a real-time autoguider to maintain, and automatically correct, alignment as needed
  • Advanced Coma-Free system:
  • Reduces off-axis comas and astigmatism for sharper images
  • Eliminates diffraction spikes for better resolution
  • Aplanatic design produces flat, distortion-free images across the field of viewespecially at the edges
  • Ultra-High Transmission Coatings (UHTC):
  • All corrector plate and mirror surfaces are fully multi-coated
  • Engineered to optimize visual, photographic, and CCD imaging
  • Improves light transmission across the entire visible spectrum through the optical path
  • Corrector plate coatings made up of multiple layers of aluminum oxide (Al2O3), titanium dioxide (TiO2), and magnesium fluoride (MgF2)
  • Mirror coatings consist of aluminum with multi-layer coatings of titanium dioxide (TiO2) and silicon dioxide (SiO2)

AutoStar III Computer Hand Controller

  • Full GoTo capabilities
  • Intuitive menu-driven interface
  • 100,000+ object database
  • Periodic Error Correction (PEC) and Permanent Periodic Error Correction (PPEC) train out tracking errors for more precision
  • Multiple alignment procedures: Auto-Align, Easy, One star, Two star, Align on home
  • Slew speeds: 1x, 2x, 8x, 16x, 0.25°/sec, 0.5°/sec, 1°/sec, 2°/sec, 4°/sec
  • Tracking rates: Sidereal, Lunar, Custom; select from 2000 incremental rates
  • Tracking accuracy: ±1 arcsec
  • Multiple customized guided tours based on the specific date, time, and location the user is observing
  • Calculate future dates and times for events like sunrises and sunsets; moonrises, moonsets, and Moon phases; solar and lunar eclipses for the next 100 years; meteor showers; equinoxes and solstices
  • Guided tours available based on when and where scope is set up
  • Database objects:
  • Solar system, including planets, asteroids, and comets
  • Constellations
  • Messier catalog
  • Caldwell catalog
  • NGC catalog
  • IC catalog
  • Galaxies
  • Nebulae
  • Planetary nebulae
  • Star clusters
  • Quasars
  • Black holes
  • Named stars
  • Hipparcos catalog
  • SAO catalog
  • HD catalog
  • HR catalog
  • Landolt
  • Gliese catalog
  • Double stars
  • Clusters
  • GCVS (Variables)
  • Stars with planets
  • Satellites, including the International Space Station (ISS)

Mount and Tripod

  • Mount:
  • Aluminum motorized single-arm alt-azimuth fork
  • Payload capacity: 60 pounds (27kg)
  • Integrated GPS module obtains accurate date, time, location information without requiring user input
  • Large 4.875" worm gears
  • Built-in ECLIPS CCD: Capture images and display them in real time on external monitors or save them to an SD card with no external computer needed
  • Connect and control another DSI CCD camera, view images on an external monitor, or save the images to the SD card or an external computer
  • Runs on eight user-supplied C-cell batteries
  • Tripod:
  • Heavy-duty stainless steel legs provide a solid platform with limited vibrations
  • Adjustable height to accommodate a variety of users and viewing positions
  • Center tray holds accessories and eyepieces, while acting as a stabilizer for the legs to improve stability and limit vibrations
  • Spiked feet provide improved stability on soft or uneven ground

Astronomer Inside Multimedia

  • Composite video output port on mount supports optional external NTSC monitors
  • When connected, enjoy audio, video, still images, and text on 500 select objects
  • Learn facts, features, history, and mythology of key near- and deep-sky objects
  • Over 4 hours of audio commentary features the voice of Sandy Wood
  • 30 minutes of movies, animations
  • Hundreds of still images

Included Accessories

  • Eyepiece:
  • 1.25"-diameter barrel
  • Accepts most 1.25" astronomical filters
  • 26mm Super Plössl eyepiece produces 78x
  • 52° apparent angle of view
  • 18mm eye relief
  • Fold-down rubber eyecup
  • Diagonal:
  • 2" snout and eyepiece holder
  • 90° angle places head in a comfortable viewing position, especially when optical tube assembly is pointed at or near the zenith
  • Star configuration corrects images horizontally, but not vertically
  • 1.25" reducer adapter enables the use of smaller eyepieces and accessories
  • Finderscope:
  • Unmagnified to ensure a wide field of view
  • Simple red aiming dot won't obstruct small or dim objects during alignment
  • Mounting bracket included

Meade LS-8ACF Specs

Optical Tube Assembly
Optical DesignSchmidt Cassegrain
Aperture203 mm / 8"
Focal Length2032 mm
Focal Ratiof/10
FocuserSingle-Speed Internal
Eyepiece Barrel Diameter1.25", 2"
Diagonal90° Star
FinderscopeYes
Mount
TypeMotorized; Alt-Azimuth Single Fork
GoTo CapabilityYes, AutoStar III
Tripod
TypeAdjustable
Material of TripodStainless Steel
General
Batteries8 x C
GPSYes
Wi-FiNo
Packaging Info
Package Weight57 lb
Box Dimensions (LxWxH)44 x 31 x 22"
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Browsing History

question

what is the difference between a Meade LS-8acf light switch telescope with catadioptic and one without?
Asked by: Jack M.
They only make this 1 version.
Answered by: Dan
Date published: 2019-11-13

question

WEIGHT
Asked by: Anonymous
Manageable.
Answered by: CHRIS D.
Date published: 2018-08-28

question

I can't get the SD card into the slot on my Meade Meade LS-8 ACF LightSwitch Telescope. It looks like there is a silver stop at the top of the slot. Will not let me install a SD card?
Asked by: Ted P.
Great question..I'm asking the same question. Wouldn't you think B&H should have that answer? It seems like a special mystery.
Answered by: JEFFREY S.
Date published: 2018-08-28
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