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Catadioptric Telescope. Objective lens diameter: 304.8mm. Focal length: 3048mm

Catadioptric
Optical design
305
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
3048
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 72523
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824213883
Package size (LxWxH) 99x68x55 cm
Shipping Weight 38.14 kg
Description

The 12" LX90-ACF has an 12" diameter f/10 ACF optical system (focal length 3048mm) and Ultra-High Transmission Coatings (UHTC) for maximum image brightness and contrast. This largest of the LX90 models collects over twice as much light as an 8" telescope, effectively doubling the image brightness on faint deep sky targets. Electronics include the advanced Meade AudioStar computer system with over 30,000 object library, multiple guided tours, High Precision Pointing capability, and Meade SmartDrive with Permanent Periodic Error Correction.

Precise and quick star alignment is done near effortlessly with an incorporated 16 channel genuine Sony GPS receiver. The Autostar is flash-updatable via free downloads at Meade.com (optional cable required).

All LX90 models feature the solid and stable LX90 aluminum double fork mount, with fast slew speed adjustable from 1 to 7 degrees per second. Fine slewing and photographic guiding speeds can be adjusted from .01x to 1x sidereal in one one-hundredth increments. The mount and all electronics are internally powered by 8 (user supplied) C-cell batteries which will typically operate the telescope for a generous 60 hours (optional Meade Universal AC adapter also available). The mount also has mechanical locks in both axis allowing adjustment even without power.

The LX90 comes fully equipped with a 1.25" diagonal mirror, 26mm Series 4000 Plössl eyepiece, Meade AutoStar Suite Astronomer Edition Software for PC and an 8x50 viewfinder with quick release bracket.

Features:

  • 12" f/10 Advanced Coma-Free Optics – 3048mm focal length
  • Ultra-High Transmission Coatings (UHTC)
  • AudioStar handbox with speaker and Astronomer Inside
Specifications
Product ID 72523
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824213883
Package size (LxWxH) 99x68x55 cm
Shipping Weight 38.14 kg
Optical design catadioptric
Optical scheme coma-free Schmidt–Cassegrain
Objective lens diameter (aperture), mm 305
Focal length, mm 3048
Magnification, x 51 — 750
Aperture ratio f/10
Resolution threshold, arcseconds 0.38
Limiting stellar magnitude 14.8
Focusing by moving the main mirror
Eyepieces SUPER Plössl 26mm Series 4000
Eyepiece barrel diameter, in 1.25
Finderscope optical, 8x50 (with an erecting prism)
Mount alt-azimuth, fork, dual arm
Built-in sensors GPS
GPS receiver integrated
Slew rate from 2-daily to 6.5 degrees per second (8 speeds)
Tracking rate daily
Positioning accuracy standard: about 2
Speed selection automatic (guiding), manual (if position is corrected)
Ports AUX (universal port for connecting Meade accessories), RS-232
Guiding system alignment reference stars with the manual centering of the star in the field of view
Autoguider
Programmable options night sky excursion mode with audio lecture, automatic search in the database, autoguiding (GoTo)
Objects database over 30,000 objects
Update via Internet for catalogues of artificial Earth satellites, asteroids, comets
Ability to connect additional equipment camera via adapter and bayonet ring (purchased separately)
Power supply 12V car cigarette lighter, 220V network adapter, 12V
Optical tube dimensions, mm 345.4x635
Observed object planets of the Solar System and deep-sky objects
Video