Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")

Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")

Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")

B&H # CEUDEP12528 MFR # 93441
Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")

Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")

Show MoreLess


Now Viewing:

In Stock
Order in the next 0:00:00 to Ship Today

Product Highlights

  • 8mm Focal Length
  • 68° Apparent AFOV
  • For 1.25" and 2" Focusers
  • T- Adapter Threads for DSLR, CCD Adapter
  • Fully Multicoated Optics
  • 8 elements in 5 groups
  • 20 mm Long Eye Relief
  • Fold-Down Eyeguard
  • Rubberized Armoring
  • Aluminum Barrel
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


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


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

$0.00 Tax Collected Outside NY

Price:  $129.95

Add to Wish List Item in Wish List
  • 1Description

The Ultima Duo 8mm Eyepiece with T-Adapter Thread from Celestron features eight fully multicoated optical elements arranged in five groups and packaged in a rubberized aluminum barrel which fits 1.25" and 2" focusers. While fully multicoated optics increase light transmission and delver brighter images with better contrast compared to similar optics with fewer coatings, blackened lens edges reduce ambient light and image blurring. This optical design is specifically aimed at viewing and imaging of bright astronomical objects.

This eyepiece is meant to be used easily for both viewing and astrophotography. To serve both of these goals, the eyepiece has a 20 mm long eye relief with fold-down eyeguard and a T-adapter thread for your DSLR or astronomical CCD camera. When you find a perfect view and ready to take a photo, simply take off the rubber eyeguard and use the 42mm threads on top of the eyepiece to connect your camera with optional T-ring.

The Ultima Duo eyepiece is compatible with most telescopes and includes protective cover cups and a carrying pouch.

Optical Performance

  • 8mm focal length
  • 68° apparent angular field of view
  • Fully multicoated optics increase light transmission and contrast
  • 20 mm eye relief allow use with glasses
  • Blackened lens edges prevent stray light
  • For imaging bright celestial bodies
  • 8 elements in 5 groups


  • Compatible with 1.25" and 2" focusers
  • Compatible with most telescopes without extra adapters
  • Can be used with planetary imagers Skyris or NexImage via a T-to-C adapter


  • Fold-down rubber eyeguard allows use with glasses
  • 42 mm thread under the eyeguard allows quickly attaching DSLR or CCD with an optional T-adapter
  • Anodized aluminum barrel is threaded for 1.25" filters and has a safety recess
  • Rubberized rings allow for a non-slip grip while wearing gloves
UPC: 050234934411
In the Box
Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2")
  • 2 x Cover Cups
  • Carry Pouch
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Focal Length 8mm
    Barrel Diameter 1.25" / 2"
    Eye Relief 20 mm
    Lens System 8 elements in 5 groups
    Filter Diameter 1.25"
    Field Stop Diameter Not provided by manufacturer
    Apparent Field of View 68°
    Dimensions Length: 3.5 - 4.7" (90 - 125 mm)
    Diameter: 2.4" (60 mm)
    Weight Not provided by manufacturer
    Packaging Info
    Package Weight 0.95 lb
    Box Dimensions (LxWxH) 6.4 x 2.8 x 2.6"

    Celestron Ultima Duo 8mm Eyepiece with T-Adapter Thread (1.25" and 2") Review

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