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The Orion Sirius EQ-G GoTo 180mm Mak-Cass Telescope sets the standard for high-power performance and compact design. With 7" of aperture and that long focal length that Maksutov aficionados love, you'll get tack-sharp views and clearly defined photos with subtle detail and high contrast. And with GoTo motorized computer guidance you can automatically point the telescope to any of over 42,000 objects in the controller's database.
The 180mm (7.1") optical system with its 2,700mm focal length (f/15) provides 44% more light grasp than the 150mm Mak, for brighter astro images and better resolution. It's the perfect combination of brightness, contrast, and high-power definition for planets, close double-stars, clusters, and well-defined deep-sky targets. The meniscus lens is fully multicoated for maximum light transmission. The optical tube measures just 22" long and weighs less than16 lbs.
The SynScan GoTo system employs two stepper motors to power the telescope to the object you select, putting it right in your eyepiece's field of view. The GoTo system will even take you on a guided sky tour of the best objects on any given night!
The optical tube now comes with a 2" visual back and 2"-to-1.25" adapter, so you can use 2" or 1.25" accessories! What's more, the threads on which the 2" visual back attach are SCT (Schmidt-Cassegrain telescope) threads. So you can remove the visual back to thread on an optional SCT-specific diagonal or camera adapter designed for SCT threads. Also included are a 9x50 finder scope, 25mm (108x) Sirius Plossl 1.25" eyepiece, and a 90-degree 1.25" mirror star diagonal.
The Sirius EQ-G mount includes an illuminated polar-axis scope, and two 11-lb. counterweights. The tripod is remarkably sturdy with 1.75"- diameter stainless steel legs and metal spreader plate. Requires external 12-volt power source or AC-to-DC adapter.
Power, versatility, portability - if you're a serious big Mak fan then this one is for you!
Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.
Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.
Beginner Level - Suited for a wide range of uses, these products are simple to operate and set up. Some initial assembly may be required depending on the type of product. Optical instruments with this rating will have very good optical and mechanical quality. Great for families, young people, and folks who don't want to mess with equipment and complexity. Beginning level telescopes will show you countless lunar craters, Saturn's rings and a myriad of star clusters and nebulae! Referring to the manual is recommended.
Intermediate Level - These products offer higher performance and more advanced features than Level 1: Beginner models. They typically take a bit longer to learn and need some set-up or adjustments. But anyone with the slightest technical bent will have no problem getting familiar with these models. Referring to the manual is recommended.
Advanced Level - These products provide the best performance but may require more skill to master and appreciate. Optical instruments with this rating have exceptionally fine optics and mechanics. Some are easy to use but might be on the large or heavy side. Some are intended for specialized uses. These products will appeal to the more technically inclined. Referring to the manual is highly recommended.
For telescopes, the optical diameter (also known as aperture) is the size of a telescope's main light-collecting lens or primary mirror, measured in millimeters or inches. Telescopes with larger optical diameters collect more light, which leads to an increase in brightness and image resolution compared to smaller instruments.
For binoculars, the optical diameter (also known as objective lens diameter) is the size of each of the front-facing objective lenses of a binocular measured in millimeters. Binoculars with larger objective lenses collect more light, which increases image resolution and brightness. Binoculars with larger objective lenses are recommended for low light situations, and binoculars with at least 50mm or larger objective lenses are recommended for pleasing astronomical observations at night.
Orion Sirius 180 EQ-G Maksutoav-Cassegrain GoTo Optical Tube Assembly 25mm Orion Sirius Plössl telescope eyepiece (1.25") 90º prism star diagonal (1.25") Tripod Orion equatorial mount Computerized hand controller 9x50 finder scope Tube ring mounting plate Dovetail finder telescope base 11 lb counterweights Tripod accessory tray Dust cap 2" visual back with 1.25" adapter GoTo hand controller cable for Sirius EQ-G GoTo hand controller cable for Atlas EQ-G GoTo hand controller bracket 12V DC Power cable Starry Night special edition software
Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.
A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.
Standard Delivery: $0.00Standard Delivery to Canada: $75.003 Day Delivery: $190.002 Day Delivery: $190.00Next Day Delivery: $242.00
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