Posts tagged ‘astronomie’

Phenix 33-66x90 zoom Maksutov Cassegrain Spotting Scope Phenix 33-66x90 zoom Maksutov Cassegrain Spotting Scope Paypal US $205.63 16d 21h 35m
Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Paypal US $499.00 6d 3h 58m
Orion Apex 127mm Maksutov-Cassegrain  Catadioptric Telescope with tripod extras Orion Apex 127mm Maksutov-Cassegrain Catadioptric Telescope with tripod extras Paypal 28 Bids US $305.00 9h
New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope Paypal US $199.99 24d 2h 56m
Meade ETX-90AT (f13.8) Maksutov-Cassegrain with UHTC Meade ETX-90AT (f13.8) Maksutov-Cassegrain with UHTC Paypal US $499.00 10d 5h 42m
iOptron SmartStar-G-MC90 Maksutov-Cassegrain Cube Mount #8804 iOptron SmartStar-G-MC90 Maksutov-Cassegrain Cube Mount #8804 Paypal US $470.00 21d 1h 9m
Vixen 2614 VMC95L 95mm, f/11 Maksutov Cassegrain Tube Vixen 2614 VMC95L 95mm, f/11 Maksutov Cassegrain Tube Paypal US $259.00 21d 7m
Phenix 30-60x80 zoom Maksutov Cassegrain Spotting Scope Phenix 30-60x80 zoom Maksutov Cassegrain Spotting Scope Paypal US $158.17 16d 21h 36m
New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm Paypal US $549.99 11d 2h 58m
NEW Bushnell 1300x100 GoTo Maksutov-Cassegrain Telescop NEW Bushnell 1300x100 GoTo Maksutov-Cassegrain Telescop Paypal US $509.99 10d 6h 26m
BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB Paypal US $369.99 5d 9h 41m
Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Paypal US $499.00 13h 36m
Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Paypal 24 Bids US $167.52 3d 1h 42m
Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Paypal US $359.99 11d 5h 51m
Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Paypal US $439.99 8d 5h 48m
Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Paypal US $549.00 3d 12h 27m
MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS Paypal US $309.95 4d 14h 38m
MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 Paypal 1 Bid US $99.00 5d 3h 36m
MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE Paypal 0 Bid US $300.00 5d 4h 23m
INTES MK-67 MAKSUTOV CASSEGRAIN WITH PADDED CARRY CASE INTES MK-67 MAKSUTOV CASSEGRAIN WITH PADDED CARRY CASE Paypal 3 Bids US $5.50 6d 13h 38m
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Maksutov Cassegrain
Maksutov Cassegrain
Is Orion StarMax 90mm TableTop Maksutov-Cassegrain a good telescope?


Hello
Is this one a good scope?
What can I see through it?
Thank You!

It depends on your experience level. If you are a beginner, you will do much better with a telescope with a larger aperture, such as an 8-inch Newtonian on a Dobsonian mount:

http://www.telescope.com/Orion-SkyQuest-XT8-Classic-Dobsonian-Telescope/p/8943.uts?keyword=xt8

A 90mm Maksutov-Cassegrain will give you fairly good views of the Moon and planets, but has too small an aperture to show you much in the way of deep sky objects. An 8-inch Dob will be excellent for both planets and deep sky objects.

Here are a few web pages with good information on beginner's telescopes:

http://www.gaherty.ca/tme/TME0702_Buying_a_Telescope.pdf

http://www.scopereviews.com/begin.html

http://observers.org/beginner/j.r.f.beginner.html

For more advanced information, read Phil Harrington's Star Ware, 4th edition (Wiley).

You'll get the greatest value for your money with a Newtonian reflector on a Dobsonian mount, such as these:

http://www.telescope.com/Telescopes/Dobsonian-Telescopes/pc/1/12.uts

http://www.skywatchertelescope.net/swtinc/product.php?class1=1&class2=106

Buy from a store which specializes in telescopes and astronomy, either locally or online; don't buy from department stores, discount stores or eBay as mostly what they sell is junk. Find your local astronomy club and try out different telescopes at one of their star parties:

http://www.skyandtelescope.com/community/organizations

I strongly recommend that beginners steer clear of astrophotography until they have learned their way around the sky. Astrophotography is by far the most expensive and difficult area of amateur astronomy.

Many people who buy telescopes have no idea how to find interesting things to observe. A good introduction to finding things is NightWatch by Terence Dickinson (Firefly). A more advanced book is Star Watch by Phil Harrington (Wiley).

Phenix 33-66x90 zoom Maksutov Cassegrain Spotting Scope Phenix 33-66x90 zoom Maksutov Cassegrain Spotting Scope Paypal US $205.63 16d 21h 35m
Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Paypal US $499.00 6d 3h 58m
Orion Apex 127mm Maksutov-Cassegrain  Catadioptric Telescope with tripod extras Orion Apex 127mm Maksutov-Cassegrain Catadioptric Telescope with tripod extras Paypal 28 Bids US $305.00 9h
New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope Paypal US $199.99 24d 2h 56m
Meade ETX-90AT (f13.8) Maksutov-Cassegrain with UHTC Meade ETX-90AT (f13.8) Maksutov-Cassegrain with UHTC Paypal US $499.00 10d 5h 42m
iOptron SmartStar-G-MC90 Maksutov-Cassegrain Cube Mount #8804 iOptron SmartStar-G-MC90 Maksutov-Cassegrain Cube Mount #8804 Paypal US $470.00 21d 1h 9m
Vixen 2614 VMC95L 95mm, f/11 Maksutov Cassegrain Tube Vixen 2614 VMC95L 95mm, f/11 Maksutov Cassegrain Tube Paypal US $259.00 21d 7m
Phenix 30-60x80 zoom Maksutov Cassegrain Spotting Scope Phenix 30-60x80 zoom Maksutov Cassegrain Spotting Scope Paypal US $158.17 16d 21h 36m
New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm Paypal US $549.99 11d 2h 58m
NEW Bushnell 1300x100 GoTo Maksutov-Cassegrain Telescop NEW Bushnell 1300x100 GoTo Maksutov-Cassegrain Telescop Paypal US $509.99 10d 6h 26m
BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB Paypal US $369.99 5d 9h 41m
Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Paypal US $499.00 13h 36m
Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Paypal 24 Bids US $167.52 3d 1h 42m
Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Paypal US $359.99 11d 5h 51m
Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Paypal US $439.99 8d 5h 48m
Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Paypal US $549.00 3d 12h 27m
MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS Paypal US $309.95 4d 14h 38m
MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 Paypal 1 Bid US $99.00 5d 3h 36m
MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE Paypal 0 Bid US $300.00 5d 4h 23m
INTES MK-67 MAKSUTOV CASSEGRAIN WITH PADDED CARRY CASE INTES MK-67 MAKSUTOV CASSEGRAIN WITH PADDED CARRY CASE Paypal 3 Bids US $5.50 6d 13h 38m
Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Paypal 8 Bids US $50.00 5d 22h 52m
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Celestron 52268 C90 Mak Spotting scope (Black) Celestron 52268 C90 Mak Spotting scope (Black)

List Price: $303.95

 

Description

Celestron’s 52268 90mm Maksutov Spotting Scope delivers excellent high power optics in a compact, affordable package. The 52268 package includes a backpack style soft carrying case, an 8x21 erect image finder scope, a 1...

Celestron NexStar 4 SE Telescope Celestron NexStar 4 SE Telescope

List Price: $849.95

 

Description

TE1) CELESTRON NEXSTAR 4SE TELESCOPE

Celestron 52238 C70 Mini Mak Spotting Scope Celestron 52238 C70 Mini Mak Spotting Scope

List Price: $147.95

 

Description

The Celestron® Mini Mak spotting scope brings portability and versatility to a new level. The Maksutov optical design is compact, easy to use, and applicable for both terrestrial (land) and astronomical use...

Orion Padded Case for 180mm Mak-Cass Telescope Optical Tube Orion Padded Case for 180mm Mak-Cass Telescope Optical Tube

List Price: $69.99

 

Description

We offer a rugged, soft custom case to fit the SkyView Pro 180mm Mak-Cass. It is fully padded on all sides to provide maximum protection of your instrument. Our padded scope cases provide a convenient means for transporting and storing your scope...

Orion Apex 90mm Maksutov-Cassegrain Telescope Orion Apex 90mm Maksutov-Cassegrain Telescope

 

Description

With a tube length of 11 inches, a 90mm (3.5") precision-polished fully multi-coated meniscus front lens, and solid uncompromising construction. the Apex 90 Compact Mak is a paragon of portability, optical excellence, and durability...

Orion FlexiShield for 150mm (6 Orion FlexiShield for 150mm (6") Cassegrains

List Price: $29.99

 

Description

Every owner of a Schmidt-Cassegrain or Maksutov telescope knows what a pain dew can be. When it forms on the front corrector plate or lens, it's usually time to call it a night. Our FlexiShield dew cap is the answer...

Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series) Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series)

List Price: $29.95

 

Description

Choosing and Using the New CAT will supersede the author’s successful Choosing and Using a Schmidt-Cassegrain Telescope, which has enjoyed enthusiastic support from the amateur astronomy community for the past seven years...

Choosing and Using a Schmidt-Cassegrain Telescope : A Guide to Commercial SCTs and Maksutovs (Practical Astronomy.) Choosing and Using a Schmidt-Cassegrain Telescope : A Guide to Commercial SCTs and Maksutovs (Practical Astronomy.)

List Price: $59.95

 

Description

Amateur astronomy is becoming more and more popular, mostly because of the availability of relatively low-cost astronomical telescopes of superb quality - commercially-made Schmidt-Cassegrain and Maksutovs...

Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica® (Modeling and Simulation in Science, Engineering and Technology) Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica® (Modeling and Simulation in Science, Engineering and Technology)

List Price: $99.00

 

Description

This book—unique in the literature—provides readers with the mathematical background needed to design many of the optical combinations that are used in astronomical telescopes and cameras. The results presented in the work were obtained by using a different approach to third-order aberration theory as well as the extensive use of the software package Mathematica®...

Celestron 52233 C50 Mini Mak Weather Proof Spotting Scope Celestron 52233 C50 Mini Mak Weather Proof Spotting Scope

List Price: $139.95

 

Description

Celestron Mini Maks bring portability and versatility to a new level. The Maksutov optical design is recognized for being compact, easy to use, and applicable for both terrestrial (land) and astronomical use...

Meade 7" LX200GPS review PART 2 of 2

Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Paypal US $4,999.00 27d 1h 10m
Questar Telescope w 35mm Camera Copernicus New Hope PA Questar Telescope w 35mm Camera Copernicus New Hope PA Paypal US $7.00 26d 4h 46m
Questar 3.5 Questar 3.5" Telescope Telephoto Lens Zerodur Miror Paypal US $1,800.00 23d 14h 48m
Questar Questar 89mm  Telescope Telephoto Lens Zerodur Questar Questar 89mm Telescope Telephoto Lens Zerodur Paypal US $1,990.00 23d 14h 37m
QUESTAR Duplex 3.5 QUESTAR Duplex 3.5" Telescope w ALL Accessories: PowerGuide, Case, Legs MORE Paypal US $5,300.00 14d 8h 21m
Telescope Camera Questar Sun Spots  New Hope PA  AD1962 Telescope Camera Questar Sun Spots New Hope PA AD1962 Paypal US $9.00 6d 4h 33m
QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I Paypal 21 Bids US $1,725.00 3d 8h 51m
Questar 3.5 Questar 3.5" telescope cervit mirror broadband coating serial #-5-CV-5495BB Paypal 0 Bid US $1,800.00 6d 9h 22m
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Questar Telescopes
Questar Telescopes

Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Paypal US $4,999.00 27d 1h 10m
Questar Telescope w 35mm Camera Copernicus New Hope PA Questar Telescope w 35mm Camera Copernicus New Hope PA Paypal US $7.00 26d 4h 46m
Questar 3.5 Questar 3.5" Telescope Telephoto Lens Zerodur Miror Paypal US $1,800.00 23d 14h 48m
Questar Questar 89mm  Telescope Telephoto Lens Zerodur Questar Questar 89mm Telescope Telephoto Lens Zerodur Paypal US $1,990.00 23d 14h 37m
QUESTAR Duplex 3.5 QUESTAR Duplex 3.5" Telescope w ALL Accessories: PowerGuide, Case, Legs MORE Paypal US $5,300.00 14d 8h 21m
Telescope Camera Questar Sun Spots  New Hope PA  AD1962 Telescope Camera Questar Sun Spots New Hope PA AD1962 Paypal US $9.00 6d 4h 33m
QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I Paypal 21 Bids US $1,725.00 3d 8h 51m
Questar 3.5 Questar 3.5" telescope cervit mirror broadband coating serial #-5-CV-5495BB Paypal 0 Bid US $1,800.00 6d 9h 22m
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Sky & Telescope - May, 2010 Sky & Telescope - May, 2010

List Price: $2.99

 

Description

An amateur astronomy magazine with feature articles on new developments in the science, plus departments on books, observing, equipment, computer software and sky predictions.

Meade ETX-TC Telsescopic Meade ETX-TC Telsescopic

List Price: $299.00

 

Description

The compact and portable design of the ETX-80AT-TC Refractor Go-To Telescope will have you out observing the inexhaustible quantity of visible phenomena in no time. The ETX-80AT-TC double-tine, fork mountings include high-torque DC motors on both telescope axes, permitting electronic operation from the included plug-in AutoStar hand controller...

Tele Vue Adapter for Questar 1.25 Tele Vue Adapter for Questar 1.25".

List Price: $75.00

 

Description

Allows you to use 1.25" eyepieces on Questar scopes.Unleash the potential of your Questar. Just add this adapter to use any of the Tele Vue 1 1/4" eyepieces: Plossls, Radians, Panoptics, and Naglers!Experience a greater range of magnification, quick-change capability, and parfocalization (no need to adjust focus when changing eye pieces)...

Thousand Oaks Solar Filter Type 2 Plus for Meade ETX 90, Celestron G3/C90, Questar 3.5 Thousand Oaks Solar Filter Type 2 Plus for Meade ETX 90, Celestron G3/C90, Questar 3.5"

 

Description

Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Transmission is 1/1,000th of 1% (Optical Density 5). Great for both visual and photographic use...

Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Paypal US $499.00 6d 3h 58m
Orion Apex 127mm Maksutov-Cassegrain  Catadioptric Telescope with tripod extras Orion Apex 127mm Maksutov-Cassegrain Catadioptric Telescope with tripod extras Paypal 28 Bids US $305.00 9h
New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope Paypal US $199.99 24d 2h 56m
New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm Paypal US $549.99 11d 2h 57m
BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB Paypal US $369.99 5d 9h 41m
Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Paypal US $499.00 13h 36m
Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Paypal US $359.99 11d 5h 51m
Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Paypal US $439.99 8d 5h 48m
Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Paypal 24 Bids US $167.52 3d 1h 42m
Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Paypal US $549.00 3d 12h 27m
MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS Paypal US $309.95 4d 14h 38m
MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 Paypal 1 Bid US $99.00 5d 3h 36m
MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE Paypal 0 Bid US $300.00 5d 4h 23m
Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Paypal 8 Bids US $50.00 5d 22h 52m
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Maksutov Cassegrain Telescope
Maksutov Cassegrain Telescope
What is best? Meade ETX 80 or DS 2080?


I want to buy a telescope, and looking for those meade Go-To, I found two good telescopes for the SAME price (299 dollars), the ETX 80AT-TC Maksutov-Cassegrain and a DS 2080 AT-TC refractor type.
Both have 80mm aperture and are Go-To systems. Which one of them should I buy? and what make this choose, the best choose?
Thank you very mych!

Look up the reviews for the Meade ETX here:

http://www.google.com/products/catalog?q=ETX+80AT-TC&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&cid=16949707191288667404&ei=rD23TISgBcqTnQeGxN2WCA&sa=X&oi=product_catalog_result&ct=result&resnum=4&ved=0CEEQ8wIwAw&os=reviews

and for the 2080 here:

http://www.retrevo.com/s/Meade-DS-2080AT-LNT-Telescopes-review-manual/id/4870ag112/t/1-2/

Notice that Meade has replaced the ETX 80 with the ETX 90

And look for better prices ..... The ETX 80 can be bought for $224

The 80 is an f/5, good for deep sky, the DS is an f/10, good for planets

Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope 11049 Paypal US $499.00 6d 3h 58m
Orion Apex 127mm Maksutov-Cassegrain  Catadioptric Telescope with tripod extras Orion Apex 127mm Maksutov-Cassegrain Catadioptric Telescope with tripod extras Paypal 28 Bids US $305.00 9h
New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope New Orion StarMax 90mm TableTop Maksutov-Cassegrain Telescope Paypal US $199.99 24d 2h 56m
New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm New Black 90mm Computerized GPS Telescope - Maksutov Cassegrain - 1200 mm Paypal US $549.99 11d 2h 57m
BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB BUSHNELL 788840 NORTHSTAR 1300 X 100mm MAKSUTOV CASSEGRAIN RVO TELESCOPE NIB Paypal US $369.99 5d 9h 41m
Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Meade ETX-90AT (f/13.8) Maksutov-Cassegrain Telescope Paypal US $499.00 13h 36m
Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Bushnell NorthStar 1250 x 90mm Maksutov Cassegrain Telescope w/Real Voice Output Paypal US $359.99 11d 5h 51m
Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Bushnell Northstar 1300mm x 100mm 4inch Maksutov Cassegrain Telescope 788840 Paypal US $439.99 8d 5h 48m
Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Meade ETX-90 Maksutov Cassegrain Telescope with Tripod and Electronic Remote Paypal 24 Bids US $167.52 3d 1h 42m
Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Celestron SkyProdigy 90 50x165 Maksutov-Cassegrain Telescope Paypal US $549.00 3d 12h 27m
MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS MEADE ETX-90EC 90mm MAKSUTOV-CASSEGRAIN TELESCOPE * W/CASE * 2 CONTROLLER PADS Paypal US $309.95 4d 14h 38m
MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 MEADE ETX Maksutov Cassegrain Telescope and Field Tripod D=90mm F=1250mm f/13.8 Paypal 1 Bid US $99.00 5d 3h 36m
MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE MEADE ETX-90EC (325 x 90mm) MAKSUTOV - CASSEGRAIN TELESCOPE Paypal 0 Bid US $300.00 5d 4h 23m
Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Meade ETX 90mm: F=1250mm f/13.8 Maksutov Cassegrain Telescope !!! Paypal 8 Bids US $50.00 5d 22h 52m
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Celestron 52268 C90 Mak Spotting scope (Black) Celestron 52268 C90 Mak Spotting scope (Black)

List Price: $303.95

 

Description

The Maksutov optical design is recognized for being a portable design that is easy to use and has a variety of applications, making it an excellent choice for both terrestrial and astronomical usage. This C90 Mak has excellent optics with razor sharp images over a wide field, along with built-in T-adapter threads for adapting SLR cameras...

Celestron NexStar 4 SE Telescope Celestron NexStar 4 SE Telescope

List Price: $849.95

 

Description

TE1) CELESTRON NEXSTAR 4SE TELESCOPE

Celestron 52238 C70 Mini Mak Spotting Scope Celestron 52238 C70 Mini Mak Spotting Scope

List Price: $147.95

 

Description

The Celestron® Mini Mak spotting scope brings portability and versatility to a new level. The Maksutov optical design is compact, easy to use, and applicable for both terrestrial (land) and astronomical use...

Orion Padded Case for 180mm Mak-Cass Telescope Optical Tube Orion Padded Case for 180mm Mak-Cass Telescope Optical Tube

List Price: $69.99

 

Description

We offer a rugged, soft custom case to fit the SkyView Pro 180mm Mak-Cass. It is fully padded on all sides to provide maximum protection of your instrument. Our padded scope cases provide a convenient means for transporting and storing your scope...

Orion Apex 90mm Maksutov-Cassegrain Telescope Orion Apex 90mm Maksutov-Cassegrain Telescope

 

Description

With a tube length of 11 inches, a 90mm (3.5") precision-polished fully multi-coated meniscus front lens, and solid uncompromising construction. the Apex 90 Compact Mak is a paragon of portability, optical excellence, and durability...

Orion FlexiShield for 150mm (6 Orion FlexiShield for 150mm (6") Cassegrains

List Price: $29.99

 

Description

Every owner of a Schmidt-Cassegrain or Maksutov telescope knows what a pain dew can be. When it forms on the front corrector plate or lens, it's usually time to call it a night. Our FlexiShield dew cap is the answer...

Celestron 52233 C50 Mini Mak Weather Proof Spotting Scope Celestron 52233 C50 Mini Mak Weather Proof Spotting Scope

List Price: $139.95

 

Description

Celestron Mini Maks bring portability and versatility to a new level. The Maksutov optical design is recognized for being compact, easy to use, and applicable for both terrestrial (land) and astronomical use...

Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series) Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series)

List Price: $29.95

 

Description

Choosing and Using the New CAT will supersede the author’s successful Choosing and Using a Schmidt-Cassegrain Telescope, which has enjoyed enthusiastic support from the amateur astronomy community for the past seven years...

Choosing and Using a Schmidt-Cassegrain Telescope : A Guide to Commercial SCTs and Maksutovs (Practical Astronomy.) Choosing and Using a Schmidt-Cassegrain Telescope : A Guide to Commercial SCTs and Maksutovs (Practical Astronomy.)

List Price: $59.95

 

Description

Amateur astronomy is becoming more and more popular, mostly because of the availability of relatively low-cost astronomical telescopes of superb quality - commercially-made Schmidt-Cassegrain and Maksutovs...

Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica® (Modeling and Simulation in Science, Engineering and Technology) Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica® (Modeling and Simulation in Science, Engineering and Technology)

List Price: $99.00

 

Description

This book—unique in the literature—provides readers with the mathematical background needed to design many of the optical combinations that are used in astronomical telescopes and cameras. The results presented in the work were obtained by using a different approach to third-order aberration theory as well as the extensive use of the software package Mathematica®...

Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Paypal US $4,999.00 27d 1h 10m
Questar Telescope w 35mm Camera Copernicus New Hope PA Questar Telescope w 35mm Camera Copernicus New Hope PA Paypal US $7.00 26d 4h 46m
Questar 3.5 Questar 3.5" Telescope Telephoto Lens Zerodur Miror Paypal US $1,800.00 23d 14h 48m
Questar Questar 89mm  Telescope Telephoto Lens Zerodur Questar Questar 89mm Telescope Telephoto Lens Zerodur Paypal US $1,990.00 23d 14h 37m
QUESTAR Duplex 3.5 QUESTAR Duplex 3.5" Telescope w ALL Accessories: PowerGuide, Case, Legs MORE Paypal US $5,300.00 14d 8h 21m
Telescope Camera Questar Sun Spots  New Hope PA  AD1962 Telescope Camera Questar Sun Spots New Hope PA AD1962 Paypal US $9.00 6d 4h 33m
QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I Paypal 21 Bids US $1,725.00 3d 8h 51m
Questar 3.5 Questar 3.5" telescope cervit mirror broadband coating serial #-5-CV-5495BB Paypal 0 Bid US $1,800.00 6d 9h 22m
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Questar Telescopes
Questar Telescopes

Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Questar QM-1 MKIII Long Distance Microscope Telescope 56cm to 153cm Paypal US $4,999.00 27d 1h 10m
Questar Telescope w 35mm Camera Copernicus New Hope PA Questar Telescope w 35mm Camera Copernicus New Hope PA Paypal US $7.00 26d 4h 46m
Questar 3.5 Questar 3.5" Telescope Telephoto Lens Zerodur Miror Paypal US $1,800.00 23d 14h 48m
Questar Questar 89mm  Telescope Telephoto Lens Zerodur Questar Questar 89mm Telescope Telephoto Lens Zerodur Paypal US $1,990.00 23d 14h 37m
QUESTAR Duplex 3.5 QUESTAR Duplex 3.5" Telescope w ALL Accessories: PowerGuide, Case, Legs MORE Paypal US $5,300.00 14d 8h 21m
Telescope Camera Questar Sun Spots  New Hope PA  AD1962 Telescope Camera Questar Sun Spots New Hope PA AD1962 Paypal US $9.00 6d 4h 33m
QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I QUESTAR TELESCOPE 1988 BROAD BAND COATINGS AND POWERGUIDE I Paypal 21 Bids US $1,725.00 3d 8h 51m
Questar 3.5 Questar 3.5" telescope cervit mirror broadband coating serial #-5-CV-5495BB Paypal 0 Bid US $1,800.00 6d 9h 22m
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Meade ETX-TC Telsescopic Meade ETX-TC Telsescopic

List Price: $299.00

 

Description

The compact and portable design of the ETX-80AT-TC Refractor Go-To Telescope will have you out observing the inexhaustible quantity of visible phenomena in no time. The ETX-80AT-TC double-tine, fork mountings include high-torque DC motors on both telescope axes, permitting electronic operation from the included plug-in AutoStar hand controller...

Tele Vue Adapter for Questar 1.25 Tele Vue Adapter for Questar 1.25".

List Price: $75.00

 

Description

Allows you to use 1.25" eyepieces on Questar scopes.Unleash the potential of your Questar. Just add this adapter to use any of the Tele Vue 1 1/4" eyepieces: Plossls, Radians, Panoptics, and Naglers!Experience a greater range of magnification, quick-change capability, and parfocalization (no need to adjust focus when changing eye pieces)...

Thousand Oaks Solar Filter Type 2 Plus for Meade ETX 90, Celestron G3/C90, Questar 3.5 Thousand Oaks Solar Filter Type 2 Plus for Meade ETX 90, Celestron G3/C90, Questar 3.5"

 

Description

Made with high quality hand select glass coated with our exclusive Solar II Plus. The most durable glass filter on the market. Transmission is 1/1,000th of 1% (Optical Density 5). Great for both visual and photographic use...

Sky & Telescope - May, 2010 Sky & Telescope - May, 2010

List Price: $2.99

 

Description

An amateur astronomy magazine with feature articles on new developments in the science, plus departments on books, observing, equipment, computer software and sky predictions.

Meade 1407 Telescope Tube Balance f7 Maksutov Casegrain Meade 1407 Telescope Tube Balance f7 Maksutov Casegrain Paypal US $99.99 9d 1h 56m
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Maksutov Casegrain Telescope

Meade 1407 Telescope Tube Balance f7 Maksutov Casegrain Meade 1407 Telescope Tube Balance f7 Maksutov Casegrain Paypal US $99.99 9d 1h 56m
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Orion Apex 90mm Maksutov-Cassegrain Telescope Orion Apex 90mm Maksutov-Cassegrain Telescope

 

Description

With a tube length of 11 inches, a 90mm (3.5") precision-polished fully multi-coated meniscus front lens, and solid uncompromising construction. the Apex 90 Compact Mak is a paragon of portability, optical excellence, and durability...

Orion Apex 102mm Maksutov-Cassegrain Telescope Orion Apex 102mm Maksutov-Cassegrain Telescope

List Price: $299.99

 

Description

Powerful enough to split close double stars, resolve bright globular clusters, or look an eagle in the eye, Orion's Apex 102mm is both a fine astronomical instrument and an unparalleled terrestrial spotting scope...