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Meade LX90 ACF 8" UHTC
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Advanced Coma-Free Optics - UHTC Coatings - Fully Computerised
To order this item outside mainland Britain or Highlands & Islands, please contact us.
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- Optical Design: Advanced Coma-Free (ACF)
- Ultra High Transmission Coatings (UHTC)
- Focal Length 2034mm (f/10)
- Meade AutoStar hand controller
- Meade AutoStar Suite Software
- Motorized Fork mount and Field Tripod
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Outline
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For the truly discerning astronomer who will not tolerate anything but the very best,
there is Meade's Advanced Coma-Free (ACF) optical system. ACF takes all of the features
of the SC models and then ups the ante. With it's technologically superior optical
design, ACF gives a flatter, coma-free field of view with pinpoint images all the way
to the edge of the field, rivaling Ritchey-Crétien performance at a fraction of the cost.
ACF is the perfect solution for the serious astroimager or visual astronomer looking
for observatory-class optics.
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Meade’s (Advanced Coma-Free™) optics deliver stunning Ritchey-Chretien performance at a Schmidt Cassegrain price.
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GPS
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LX90 can do more than track satellites. It talks to them as well. Turn it on
and the built-in Sony® GPS sensor immediately determines your precise date, time and
location. AutoAlign™ then uses this info to align your scope for a tour of the most
spectacular sights in the universe.
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Easy Align™
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LX90s are smart scopes that know the night sky right out of the box.
Easy Align picks two alignment stars for you and places them right in your viewfinder.
Just center them to fine tune your alignment and the wonders of the universe are at your
fingertips.
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Oversized Primary Mirror
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Only Meade manufactures their primary mirrors in diameters larger than their listed
aperture (e.g. the diameter of the 8" LX90’s primary mirror is actually 8.25"). This
additional 1/4" yields a wider, fully illuminated field-of-view, and allows you to see
the light other telescopes leave behind.
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8 X 50 Viewfinder
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Quickly and easily locate and center deep sky objects.
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Slew Speed
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The LX90 slews (moves) from star to star at 7 degrees per second. That is more than
twice as fast as the competition. This means that over the course of an evening, a Meade LX90
will show you two to three times more objects.
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Rigid Cast Aluminium Fork Mount
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The Meade LX90's Optical Tube Assembly is mounted on two sturdy fork arms giving you a
rock solid platform for astrophotography.
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LX200™ - Series Tripod
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The LX90 comes standard with the same sturdy field tripod as the LX200-ACF
series telescope.
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Smart Drive™
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Meade’s AutoStar® provides Periodic Error Correction (in polar mode). Over
the course of one or more training periods your LX90 will minimize guiding
corrections during long exposure astrophotography.
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Autostar Controller
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Meade’s AutoStar® can be updated after purchase. You can download software upgrades,
guided tours and timely objects like comets, satellites and new discoveries – Free!
Keep your AutoStar up-to-date, and your LX90 will grow with you for years to come.
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| Specifications |
LX90 SC 8" |
LX90 ACF 10" |
LX90 ACF 12" |
| Optical Design |
Advanced Coma-Free
(SC model available) |
Advanced Coma-Free |
Advanced Coma-Free |
| Clear Aperture |
203mm (8") |
254mm (10") |
305mm (12") |
| Focal Length Focal Ratio |
2034mm f/10(8") |
2540mm f/10 (10") |
3048mm f/10 (12") |
| Ultra-High Transmission Coatings (UHTC™) |
Included |
Included |
Included |
| Optical Tube Dimensions (dia. x length) |
9.1" x 16.75" |
11.75" x 22" |
13.6" x 25" |
| GPS |
Sony®GPS |
Sony®GPS |
Sony®GPS |
| Viewfinder |
8 x 50mm |
8 x 50mm |
8 x 50mm |
| Telescope Mounting |
fork-type; double tine |
fork-type; double tine |
fork-type; double tine |
| Setting Circle Diameters, RA and Dec. |
RA: 8"; Dec: 5" |
RA: 8"; Dec: 5" |
RA: 8"; Dec: 5" |
| GO TO Pointing Precision (approx.) |
5-arc mins. |
5-arc mins. |
5-arc mins. |
| Pointing Precision, High Precision Mode |
3-arc mins. |
3-arc mins. |
3-arc mins. |
| Slow-Motion Controls |
electric, RA and Dec |
electric, RA and Dec |
electric, RA and Dec |
| #497 AutoStar Hand Controller |
PIC 16C57 microcontroller; 2 line x 16 alphanumeric character display; 20-button keypad, red LED backlit |
| Batteries (user-supplied) |
8 x C-cells |
8 x C-cells |
8 x C-cells |
| Battery Life (approx.) |
60 hrs. |
60 hrs. |
60 hrs. |
| Onboard Celestial Object Database |
30,223 objects |
30,223 objects |
30,223 objects |
| Slew Speeds: |
RA and Dec: 1x, 2x, 8x, 16x, 64x, 128x sidereal and 1.5°/sec., 3°/sec., 6.5°/sec. |
| Tracking Rates |
sidereal, lunar, or custom-selected from 2000 incremental rates |
| Tube Body |
aluminium |
aluminium |
aluminium |
| Mount Castings |
aluminium |
aluminium |
aluminium |
| Primary, Secondary Mirrors |
Pyrex® glass |
Pyrex® glass |
Pyrex® glass |
| Correcting Plate/Lens |
clear water white glass |
clear water white glass |
clear water white glass |
| Telescope Weight |
33 lbs. |
50 lbs. |
60 lbs. |
| Tripod Weight |
19 lbs. |
19 lbs. |
19 lbs. |
| Field Tripod Height all models: |
30" to 44" variable |
30" to 44" variable |
30" to 44" variable |
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Mounting a Second Optical Tube on Meade Telescopes
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An additional refractor can be mounted on top of Meade telescopes with the Farpoint mounting rings,
dovetail accessory adapters and dovetail plates as shown below.
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The Opticstar ED80S Gold shown mounted on fork-mounted SCT telescopes.
A & C Farpoint Scope Rings 125mm and Dovetail Adapters.
B Farpoint Dovetail Plate for Meade SCT.
D Farpoint Dovetail Plate for Celestron SCT.
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Accessories
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The following table lists a number of accessories that may be of interest to some customers.
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| Vixen-Style dovetail accessories |
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Product Page |
Description |
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Opticstar 120mm Scope Rings and Dovetail, Vixen-style |
Collimating rings and dovetail to mount small refractors on mounts such as the
Celestron CG4, CG5, Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, Vixen mounts, etc.
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Farpoint 125mm Scope Rings and Dovetail, Vixen-style |
Collimating rings and dovetail to mount small refractors on mounts such as the
Celestron CG4, CG5, Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, Vixen mounts, etc.
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Farpoint Universal Dovetail Bar - Vixen-style |
Dovetail to mount refractors on mounts such as the Celestron CG4, CG5, Sky-Watcher EQ3-2, EQ5, HEQ5, EQ6, Vixen mounts, etc.
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Farpoint "Sure Grip" Saddle - Vixen-style |
Saddle for Vixen-style dovetails to mount optical tubes.
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Farpoint Side-by-Side Saddles - Vixen-style |
Two Vixen-style saddles and Vixen-style dovetail to mount two optical tubes on a single mount.
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Sky-Watcher Equatorial Mounting Plates |
Dovetails of various lengths, to attach optical tubes to Vixen-style equatorial mounts |
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Opticstar Mini Dovetail - Vixen-style |
Compact dovetail to attach small optical tubes to Vixen-style equatorial mounts |
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Opticstar Short Dovetail - Vixen-style |
Short dovetail to attach small optical tubes to Vixen-style equatorial mounts |
| Losmandy-Style dovetail accessories |
| Image |
Product Page |
Description |
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Farpoint 125mm Scope Rings and Dovetail Adapters, Losmandy-style |
Collimating rings and two adapters for Losmandy-style dovetails to mount refractors on mounts
such as the Celestron CGEM, GGE Pro, Losmandy, etc (dovetail plate not included, please see below).
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Farpoint Dovetail Plates for Celestron SCTs, Losmandy-style |
These plates mount onto existing holes on the Celestron Schmidt-Cassegrain telescope tube. |
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Farpoint Dovetail Plates for Meade SCTs, Losmandy-style |
These plates mount onto existing holes on the Meade Schmidt-Cassegrain telescope tube. |
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Farpoint Vixen Saddle to Losmandy Saddle Adapter |
Adapter to fit optical tubes with Vixen-style dovetails on Losmandy-style saddles. |
| Other accessories |
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Product Page |
Description |
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Opticstar 1.25" Extension Tube |
Used to achieve focusing with long focal length eyepieces where focal travel
on the telescope is limited.
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Opticstar 2" Extension Tube |
Used to achieve focusing with long focal length eyepieces where focal travel
on the telescope is limited.
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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: 24th September 2012
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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 M31 galaxy shot by Peter Shah 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 Eta Carina nebula shot by John Haunton with the Opticstar DS-335C ICE.
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Astrophotography
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Opticstar Imaging
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posted: 26th February 2013
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High quality refractor telescopes, bundled with CCD cameras for deepd sky imaging,
planetary video imaging and auto-guiding.
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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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updated: 15th May 2012
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Acclaimed books from Willmann Bell...
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