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Seller Store adorama
(593164) 99.3%,

Location: Elizabeth, New Jersey
Ships to: US,
Item: 394836686452

Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
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Celestron:Celestron
MPN:91076
Manufacturer:Celestron
Series:Celestron Optical Tube
Type:Rowe Ackermann Schmidt – RASA
Aperture:11″ (280mm)
Eyepiece Diameter:4.48″
Country/Region of Manufacture:China

Celestron 11″ Rowe-Ackermann Schmidt Astrograph RASA Telescope, Version 2 OTA OnlySKU: CNOTARASA2Mfr. Part: 91076 Item Includes11-inch optical tube assembly – 42 mm T-thread camera adapter – 48mm camera adapter – Dust Cover – Fan Battery Pack – 2-Year Warranty DescriptionCapturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required. RASA 11 V2 builds on the legacy of Celestron’s Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure times on film in the 1970s. Today, with CCD sensor sizes as large as film or larger, the RASA 11 V2 offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent. Combine this large image circle with a focal length of just 620mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting. Optical Performance The RASA 11 V2 features optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range or even that of a much more expensive instrument. The design also provides minimal vignettin Advanced Features RASA 11 V2 utilizes the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube. Engineered as a complete astroimaging system, every component of the RASA 11 V2 is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly. The Dovetail CGE bars on the top of the optical tube provides a connection for use of optional accessories like a guidescope.FeaturesFast, wide-field 11″ f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvatureLarge 43.3mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52mm for larger format sensorsNew Ultra-Stable Focus System (USFS) minimizes focus shift and mirror flopIntegrated air-cooling system features a quiet, high-output 12V MagLev fan and vents with mesh filters to prevent dust ingressCommon camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR camerasSpecificationsTechnologyStarBright XLTOptical DesignRowe-Ackermann Schmidt AstrographAperture279 mmFocal Length620mmFocal RationF/2.22Central obstruction diameter114mm (4.48″) (41% of aperture diameter)Light Gathering Power1588xResolution (Rayleigh)0.49 arc secondsResolution (Dawes)0.41 arc secondsImage Circle43.3mm (1.7″), 4.0Useable field52mm (2.04″) , 4.8 only minimal performance loss at edge of FOVWavelength Range400 – 700 nmSpot sizeOptical CoatingsStarBright XLTOff-axis Illumination83% at 21mm (.82″) off-axisOptical Window68mm (2.67″) Back focus with included camera adapter55mm (2.16″)Back focus from top of threaded collar72.8mm (2.86″)Optical TubeAluminumOptical Tube Length838.2mm (33″)Optical Tube Diameter330.2mm (13″)FocuserUltra-Stable Focus SystemFinderscopeNot includedOptical Tube Weight43 lbs (19.5 kg)Other FeaturesVentilation fan, dual dovetail mounting barsDovetailCGE Dovetail Bar WHO WE ARE Adorama is one of the nation’s largest Photographic retail and mail order suppliers. For over 35 years we have been serving professionals as well as amateurs in the photographic, video, digital imaging and telescope fields. We offer the best combination of quality services, vast selection, knowledgeable staff, and competitive pricing. Adorama Camera is your #1 source for the best and newest products in the photographic industry, and the largest inventory of items such as Digital Cameras, Digital Camera Accessories, Memory Cards, 35mm Cameras, Medium Format Cameras, Lenses, Video Cameras, TV’s, MP3 Players, Binoculars, Telescopes, Scanners, Inkjet, Dye-Sub & Laser Printers, Office Fax machines, Shredders, Projectors, Inkjet Paper, Photographic Accessories, Filters, Batteries, Cases, Tripods, Flashes, Lighting & Studio Equipment, Film, Darkroom Products and Audio Video Equipment. All new equipment comes with all of the factory included accessories, including a full manufacturer’s warranty, unless otherwise noted. We only post items that are in-stock and ready to ship. PAYMENT In an effort to comply with our Authorized Dealer contracts with the manufacturers and to best control our inventory levels we reserve the right to limit quantities or cancel orders to Resellers and Exporters. Please note: Inventory is not reserved until the item is paid for. Please include a phone number as the carriers and our Trucking Companies require it. INTERNATIONAL International taxes and duties: International shipments may be subject to import fees, duties and taxes, which are levied once a shipment reaches the respective country, in addition to the brokerage fees/custom clearance charges which may be imposed by the carrier. These charges must be borne by the recipient. Adorama has no control over these charges and cannot predict what they might be. Orders shipped using eBays (GSP) “Global Shipping Platform” have already paid their taxes and must contact eBay directly for any issues. SHIPPING Adorama’s eBay store ships to the 48 Contiguous United States. We do not ship to APO & FPO, Alaska, Hawaii and Puerto Rico. We now ship many items to Canada, parts of Europe and Australia. If the item does not have the option, please don’t ask. We do not ship to other International locations. Items with “free shipping” are only shipped free to the 48 contiguous United States.Combined shipping is available by using the Add-to-Cart button and confirming that the shipping carriers for each item are the same BEFORE making the Payment. eBay’s new checkout will then consolidate your items and present to you the better shipping rates. All orders must be shipped with a printed invoice included. We can not ship orders without the invoice or a lower value invoice. Gift Invoices may be requested if you contact us immediately after payment during business hours. No guarantees for other times. Shipment errors due to a bad address entered by the buyer and will not be credited for shipping charges if returned or at all if lost or abandoned by the carrier. We supply tracking information directly to your eBay account within 24 hours after the shipment leaves our warehouse. Please make sure to check your eBay email address and that it does not go into spam or junk. Approved Change Requests may not be updated on eBays portal, please check the emails. Returns For the first 30 days from date of receipt of your purchase you may return the merchandise for a full money back refund, excluding any shipping charges (for items which we offer free shipping, our standard shipping charges will be deducted from any refund or credit). Returned or exchanged products must be in brand-new, mint condition. Items must be in the original, undamaged manufacturer’s packaging with all packaging materials, including instruction booklets, packing inserts, and the blank warranty cards. Memory cards and any other Blister Pack items are not returnable once opened. Any merchandise missing the original Universal Product Code (UPC) cannot be returned. The manufacturer’s labeled packaging must be enclosed within an additional shipping carton. Please do not place stickers or shipping labels on the original manufacturer’s package. Printers are not returnable once the Toner Cartridges have been installed or released.Desktop Computers, Laptops, Tablets & Notebooks are not returnable once they have passwords or other software installed, have been registered with or returned to the manufacturer for any reason. Please use the Return this Item or Contact Seller button on your Purchase History page to ask us any questions or request a return. Adorama cannot accept COD or freight-collect shipments. Please enclose a copy of your invoice with your return and tell us whether you would like the item to be replaced or refunded. Returns can take up to 8 days in-house from the date we receive it to process. When returning an item, please make sure you use a shipper which provides you with Insurance and a tracking number. Items returned without a tracking number might take much longer to be processed. If you live in New York you may bring the return to our Manhattan store for exchange or refund. Hours of operationMon-Thurs: 9:00am – 6:00pm Friday: 9:00am – 1:00pm : 12pt;”> 9:00am – 6:00pm Friday: 9:00am – 1:00pm

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