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Meade LXD75 ACF 8" UHTC
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Advanced Coma-Free Optics (ACF) - UHTC Coatings - Fully Computerised
We can only ship this item in the United Kingdom.
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- Optical Design: Advanced Coma-Free (ACF)
- Ultra High Transmission Coatings (UHTC)
- Focal Length 2000mm (f/10)
- Meade AutoStar hand controller
- Meade AutoStar Suite Software
- Motorized mount and Field Tripod
- Polar Illuminated Viewfinder
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Outline
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The Meade LDX75 series consists of fully featured telescopes with advanced specifications.
The LXD75 ACF 8" model incorporates Meade’s ACF™ (Advanced Coma-Free™) optics — the proprietary
optical innovation that’s so clearly superior, it delivers stunning Ritchey-Chretien performance
at a Schmidt Cassegrain price.
Developed over years of design and testing in Meade’s own engineering
and manufacturing facilities, ACF optics are unlike anything on the market
— producing tack-sharp, fully rounded stars without the crescent-shaped
distortions known as coma — an optical aberration found on every
Schmidt-Cassegrain, and most other, optical systems.
And because ACF optics concentrates starlight much more precisely —
without coma or refraction spikes — than Schmidt Cassegrain or other systems,
you can actually see and image fainter stars.
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Meade’s (Advanced Coma-Free™) optics deliver stunning Ritchey-Chretien performance at a Schmidt Cassegrain price.
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Premium Meade® LXD75™ Optics
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- Optical Tube Construction Schmidt-Newtonian and Schmidt-Cassegrain optics are mounted in precision-machined aluminum cells and mounted in sturdy steel tubes which are baked with highgrade textured enamel paint. The optical tube assembly is closed, reducing air currents inside the tube. This prevents distortion of an otherwise sharp image. Plus, a closed tube significantly helps keep the optics clean.
- Corrector Lens Fully corrects for spherical aberration and provides pinpoint star images. Water white glass is used in all Schmidt-Newtonian and Schmidt-Cassegrain corrector lenses to maximize light transmission. The use of water white glass results in an increase of light transmission in excess of 10%, as compared to competing telescopes using soda lime glass.
- Individually Figured Optics Schmidt-Newtonian and Schmidt-Cassegrain corrector lenses and mirrors are individually figured to create a superior optical system which is renowned for its exquisite smoothness and performance.
- Pyrex® Primary Mirror Premium-grade Pyrex mirrors are used in all Schmidt-Newtonian and Schmidt-Cassegrain optical systems, providing exceptional thermal stability versus competing models using standard plate glass.
- Fast f/Ratios Meade’s Schmidt-Newtonians have extremely fast, well corrected f/Ratios for short photographic exposure times and wide fields-of-view.
- 2" Focuser Rack and pinion focuser allows the user to achieve a precise focus.* Accepts both 1.25" & 2" Eyepieces.
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Stable Meade LXD75 German Equatorial Mount
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- Sturdy Mount with Heavy-Duty Castings Designed by Meade’s engineers and manufactured for high-performance observing and astrophotography.
- Shaft & Bearing System The sturdy German Equatorial Mount is accurate and precise. The RA and Dec axes move effortlessly on four highprecision stainless steel ball bearings.
- High-Precision Worm Gears Located on both axes for smooth tracking and slewing.
- High-Precision Pointing (HPP) For even more precise pointing use the HPP function. HPP puts objects in the center of the field-of view which allows you to confirm deep sky objects at the faintest limits of the telescope’s capability.
- Periodic Error Correction Corrects periodic errors on the RA axis over the course of one or more training periods, thereby minimizing guiding corrections during long-exposure photography.
- 9-Speed Drive Controls From a rapid slew rate of 4.5°/sec. to 1x sidereal—it’s all controlled from the AutoStar controller. 3-Star Alignment Ensures precise alignment. It eliminates the need for a complicated optical/mechanical alignment process.
- Heavy-Duty Tripod Variable-height field tripod with spreader bar brace provides the stability and vibration damping required for visual observation and astrophotography.
- Illuminated Polar Alignment Viewfinder For quick, precise polar alignment.
- Power Supply Powered by 8 D-size batteries. Can also be powered by optional car cigarette lighter or AC wall adapter.
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Meade AutoStar®
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The AutoStar controller helps you quickly find, and GO TO over
30,000 objects in the night sky. View planets, stars, galaxies,
nebulae, and comets…all at the push of a button. AutoStar is
pre-programmed with several guided tours, including the popular
Tonight’s Best™. Input date, time and location—then let AutoStar
take you on a guided tour of the best objects that particular night.
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AutoStar.
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Standard Features
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- Telescope Mounting: LXD75, German-type.
- Setting Circle Diameters, RA and Dec.: 2.25".
- Polar Illuminated Viewfinder: included.
- RA Control System: 9-speed, microprocessor-controlled, 12v DC, 72mm (2.83") worm gear.
- Declination Control System: 9-speed, microprocessor-controlled, 12v DC, 72mm (2.83") worm gear.
- Hemispheres of Operation: North and South.
- GO TO Pointing Precision (approx.): 15 arc mins.
- Slow-Motion Controls: electric, both axes.
- Bearings: 2 – Ball Bearings RA: outer – 1x58mm, 1x47mm; inner – 1x45mm, 1x35mm DEC: outer – 1x72mm, 1x47mm; inner – 1x55mm, 1x30mm.
- AutoStar® Hand Controller: PIC 16C57 microcontroller; 2 line x 16 alphanumeric character display; 20-button keypad, red LED backlit.
- Main Telescope Controller: Motorola® 68HC11 microprocessor; 1-Megabyte flash memory (field reprogrammable); 32K RAM.
- Batteries (user-supplied): 8 x D-cells. LXD75-Series models may alternatively be powered from an automobile cigarette lighter plug, using the #607 Power Cord, or from a 115v AC home outlet, using the #547 AC Adapter; both the #607 and the #547 include 25 ft. cords. (not included).
- Battery Life (approx.): 40 hours.
- Onboard Celestial Object Database: 30,223 objects.
- Slew Speeds both axes: 1x, 2x, 8x, 16x, 64x, 128x sidereal; 1.5°/sec., 3°/sec., 4.5°/sec.
- Tracking Rates: sidereal, lunar, or custom-selected from 2000 incremental rates.
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Notice
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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
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Cash Back on Opticstar
Imaging Products
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updated: 4th August 2010
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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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Sample Images
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Opticstar DS-145M ICE
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posted: 13th March 2009
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The M20 nebula shot by John Haunton with the Opticstar DS-145M ICE.
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Sample Images
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Opticstar PL-130M CoolAir
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posted: 10th February 2009
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An impressive 9.4 megapixel mosaic of the Moon by Herwig Sulzbacher with
the Opticstar PL-130M.
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Feedback
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We want to hear your comments.
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Sample Images
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Opticstar DS-335C ICE
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updated: 20th August 2010
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The M8 nebula shot by John Haunton with the Opticstar DS-335C ICE.
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Product Reviews
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Apogee Alta
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updated: 14th February 2009
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"The quality exceeds anything I've been able to do in the past
with film or any other CCD camera."
Senior Editor Dennis di Cicco of Sky & Telescope
in a Test Report, June 2007 issue.
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Manufacturer Spotlight
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Orion Optics
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updated: 4th August 2010
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The new AG Advanced Astrographs from the ever expanding range of telescopes from
Orion Optics combine their high quality standards with new advanced optical designs...
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A&M 80mm f/6 Review
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"Best Of Breed"
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updated: 25th March 2009
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The A&M 80mm f/6 A&M/TMB has been
reviewed in Cloudy Nights
and it has been hailed as the "best of breed". The review concludes by saying "offers
stunning performance while standing out from the crowd, look no further".
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Willmann Bell
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Books for Astronomy
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posted: 29th August 2008
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Acclaimed books from Willmann Bell...
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