Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope (OTA only)

Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope (OTA only)

Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope (OTA only)

B&H # CE11ROTA MFR # 91075
Special Order
Expected availability: 7-14 business days 
Free Standard Shipping
Not eligible for Free Expedited Shipping

Product Highlights

  • 11" Diameter Aperture
  • Fast f/2.2 Focal Ratio
  • 620mm Focal Length
  • Large 43.3mm Imaging Circle
  • 55mm Back Focus
  • StarBright XLT Optical Coating System
  • 10:1 FeatherTouch Micro Focuser Knob
Show moreShow less
Man Behind Layer

B&H $1000 Giveaway

Share your most-wanted item with friends & family for chances to win a $1000 B&H Gift Card. It's that easy!

1 new winner announced every week!
Limit 1 entry per day; Come back every day to increase your chance of winning!

Be sure to mention #BHWishList when you share!

Share on Twitter Share on Facebook

Congrats to our winners so far — Mark P., Lauren K. & Daniel M.

Official Rules

OFFICIAL B&H $1,000.00 GIVEAWAY RULES

NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (www.bhphoto.com); or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third-party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total three (3) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1000.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize to the e-mail address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the e-mail account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An e-mail account holder shall mean the natural person assigned to such e-mail account by the internet access or online service provider or other organization responsible for assigning e-mail addresses for the domain associated with such e-mail account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $1,000.00 Giveaway Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only

Email

Already have a B&H account? Just log in tomorrow to enter again!

$0.00 Tax Collected Outside NY

Price:  $3,499.00

Add to cart for lower price

Add to Wish List Item in Wish List
  • 1Description

The 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope from Celestron is specifically designed for astrophotography and astroimaging with a large 11" aperture and fast f/2.2 focal ratio. The OTA is being offered by itself without a mount, and comes with a Celestron CGEM-style dovetail plate for use on compatible mounts and tripods. Using the improved StarBright XLT multi-coating system, light transmission is increased throughout the entire optical path with anti-reflection multicoated lenses, highly reflective multicoated mirrors, and 4-element rare-earth glass.

A 43.3mm imaging circle is made to cover today's large DSLR and CCD imaging sensors to capture full-frame shots. Its fast focal ratio reduces exposure times without sacrificing image quality, and gives the user more time for multiple shots of the same object for layering or with different filters, or to change subjects completely. A custom-designed 10:1 linear brass focuser enables very precise focusing to clearly resolve topographic details on the Moon, virtually remove comas and corona from distant stars, and reveal details of most other celestial objects in between. Since this OTA is designed as an imaging scope, a 42mm T-thread camera adapter and 48mm camera adapter are provided. Other adapters are available if required.

Optical Performance
  • 11" diameter aperture
  • 620mm focal length
  • Fast f/2.2 focal ratio
  • Proprietary StarBright XLT fully multicoated optical system
  • 4-element rare-earth glass for true color rendition without aberrations across the entire field of view
  • 43.3mm image circle captures pinpoint stars on today's large CCD and DSLR imaging chips
  • Resolution: 0.5 arc sec (Rayleigh), 0.41 arc sec (Dawes)
StarBright XLT Coating System
  • Multi-layer mirror coatings made from layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and Si02 (silicon dioxide)
  • Reflectivity is flat across the light spectrum, for both astrophotography/astroimaging and visual observation
  • Multi-layer anti-reflective coatings made from layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide)
  • High-transmission water white glass corrector lens with 97.4% light transmission
Focuser
  • Linear brass focuser-bearing reduces image shift
  • Dual-speed 10:1 FeatherTouch micro focus knob provides precise focusing
Construction Details
  • 42mm T-thread and M48 camera adapters included for attachment to CCD and DSLR cameras
  • Heavy duty CGEM dovetail plate
  • 12VDC MagLev fan reduces cool-down time and provides airflow
UPC: 050234910750
In the Box
Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope (OTA only)
  • 42mm T-Adapter
  • 48mm Camera Adapter
  • Limited Two-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Rowe-Ackermann Schmidt
    Aperture 11" / 27.9 cm
    Focal Length 620 mm
    Focal Ratio f/2.2
    Back Focus 2.2" / 5.5 cm, from front lens assembly
    Eyepiece Barrel Diameter N/A
    Diagonal None
    Finderscope None
    Tripod None
    Mount Type CGEM dovetail plate
    Power Requirement 12 VDC for fan operation
    Length 33.0" / 83.8 cm
    Weight 43 lb / 19.5 kg
    Packaging Info
    Package Weight 57.0 lb
    Box Dimensions (LxWxH) 39.0 x 20.0 x 19.0"

    Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph Telescope (OTA only) Review

    Be the first to review this item
    See any errors on this page? Let us know.