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B&H# MELX90ACF10Q Mfr# 1010-90-03
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The Meade 10" LX90-ACF Telescope yields similar optical brilliance to the LX200 flagships, but in a package providing better value for those primarily observing rather than imaging.  The quality, workmanship, design, and features will satisfy novices and experienced professionals alike.  This is the "ACF" version of the 10" LX90, which stands for "Advanced Coma-Free".  Meade has employed advancements beyond the traditional Schmidt-Cassegrain catadioptrics for the LX90-ACF, gaining significant resolution increases as you move away from the center of the field towards the edge.

The 10" LX90-ACF with UHTC multicoatings is a serious deep space aperture instrument, but is still of a size that can be managed by one able-bodied person.  It provides a notable difference in brightness and resolving power versus the more common 8" catadioptric scopes.  To truly appreciate the aperture, you'll need dark skies above you, whether you're blessed not to live amongst artificial light pollution or able to commute to a similar location for observing purposes.

Meade combines high quality optics, stable double fork mounting, computerized control, and streamlined appearance in a single unit.  The list of technology within is long and exhaustive:  a rigid mount with beefy tripod, an oversized primary mirror, truly diffraction-limited optics, and the very finest of simple and accurate GPS-enabled alignment.

The 10" LX90-ACF's standard-equipment AutoStar computer controller connects to the telescope's control panel and permits viewing and tracking of 30,223 database objects.  That's 50 objects in the solar system, 8 major planets from Mercury to Pluto, the Moon, 26 asteroids & 15 comets.  An apparent endless supply of galaxies, diffuse nebulae, planetary nebulae and star clusters are present, including the complete Messier, Caldwell, IC, and NGC catalogs.  You'll also enjoy looking at 50 satellites, including the International Space Station and the Hubble telescope.

You can do some light-duty lunar/planetary imaging (of up to ~5 minute exposures) with the LX90 through the eyepiece using a digiscoping adapter or with an SLR via the SLR adapter and your camera system's specific T-mount.  For deep space images of exposures much longer than a few minutes, you'll need a Meade Deep Sky Imager; the 10" LX90 cannot use a wedge and thus cannot make streak-free long exposures with an SLR camera (the Deep Sky Imager's software corrects for field rotation).

Power for the LX90-ACF is supplied by 8 "C" batteries, but via optional accessories you can also adapt to an AC wall unit or a vehicle's cigarette lighter (which can operate in the field off of a Celestron Power Tank).  Everything needed to begin observing immediately is included except for the power supply.

Advanced f/10.0 Optics
Advanced catadioptric optics perfect for demanding research and enthusiast imaging; renderings of stars remain tight circles from center to edge of field.
Sony® GPS Sensor
The LX90 features a Sony GPS receiver sensor, which automatically inputs ultra-exact time, date & location values to help quickly align the telescope with remarkable (~1 arc minute) precision.
AutoAlign™
After you level the scope and point it roughly north, AutoAlign™ picks two alignment stars for you and places them right in your viewfinder-just center them to fine tune alignment and the universe is at your fingertips!
Inspected Exclusively in Irvine, California
The hand matched diffraction-limited optical system is individually inspected at Meade's Irvine, California facilities after production.
Oversized Primary Mirror
The primary mirror's diameter is larger than the listed aperture, yielding a wider & fully-illuminated viewing field.
UHTC Ultra-High Transmission Coatings
UHTC Ultra High Transmission Coatings (employed upon all optical surfaces) yield a 20% decrease in light loss and dramatically-enhanced detail of deep space objects.
Imaging Ready
Make ~5-minute lunar/planetary exposures in the LX90's standard mode (with a digiscoping adapter or SLR camera adapter), or longer exposure deep space images by adding a Meade Deep Sky Imager.
3 Power Options
Use 8 "C" batteries right out of the box, or instead adapt to AC power with the #07584 AC Adapter or to a vehicle's cigarette lighter port (or a Celestron Power Tank's port) with the #07043 DC Power Cord with Cigarette Lighter Adapter.
Optical Design Hybrid catadioptric
Optical Lens Diameter 10.0" (254mm)
Focal Length 2500mm
Focal Ratio f/10.0
Maximum Useful Magnification 500x
Resolving Power 0.46
Optical Tube Dimensions 11.8 x 22.0" (30.0 x 55.9cm) WxL
Mount Type Altazimuth
Eyepiece Barrel Diameter 2"-18 (1.25" reducing adapter included)
Finderscope 8x50 Straight
Tripod Standard field tripod w/ 2" segments (30-44"/76-112cm)
Motor Yes
GO-TO Capability Yes
PC Compatible Yes
Power Source 8 1.5-volt "C" batteries
Optional #547 AC adapter
Optional #607 Cigarette plug adapter
Weight 70.0 lbs (31.78kg)