OConnor 114-55mm Threaded Universal Step-Down Ring

OConnor 114-55mm Threaded Universal Step-Down Ring

OConnor 114-55mm Threaded Universal Step-Down Ring

B&H # OCUR114 MFR # C1243-1129

Show MoreLess


Now Viewing:

In Stock

Product Highlights

  • Step-Down Ring for O-Box WM Matte Box
  • For Lenses with 55-104mm Front Barrel
  • Aluminum Exterior Ring
  • Flexible Fabric Inner Ring

B&H $500 Gift Card Dash

Share for a chance to win a $500 B&H Gift Card!

Share on Twitter

Share a favorite product for chances to win one of eight $500 B&H Gift Cards!
1 new winner announced every Monday starting Nov 5th!
Limit 1 entry per day: Come back every day to increase your chance of winning.

Be sure to mention #BHWishList when you share!

Congrats to our winners so far:

Next winner: Dec 17th

James Z. (Wk 1)

Ralph H. (Wk 2)

Arturo M. (Wk 3)

Rich P. (Wk 4)

Valeria A. (Wk 5)

Sabrina B. (Wk 6)

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "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 October 28, 2018 until on or about December 23, 2018 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website (the "Website") on Facebook or Twitter via the dedicated links contained on the website using the hashtag #BHWishlist; 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 $500.00 Gift Card Dash Sweepstakes, 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 eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. 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 at the email 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 email 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 email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email 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 $500.00 Gift Card Dash Sweepstakes 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 $500.00 Gift Card Dash Sweepstakes, 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 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List

OConnor C1243-1129 overview

  • 1Description

The OConnor 114-55mm Threaded Universal Step-Down Ring is a threaded step-down ring compatible with the OConnor O-Box WM matte box. Use this versatile ring to replace multiple reduction rings when shooting with lenses of varying sizes. Its flexible fabric inner ring reduces the outer 114mm diameter and adapts to any lens with a front barrel diameter from 55mm to 104mm.

Use in place of multiple reduction rings when using lenses of varying sizes with the OConnor O-Box WM matte box
Flexible inner fabric ring accommodates lenses with a front barrel diameter from 55mm to 104mm
Lightweight, sturdy aluminum construction
In the Box
OConnor 114-55mm Threaded Universal Step-Down Ring
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    OConnor C1243-1129 specs

    Material of Construction Aircraft-grade aluminum, flexible fabric
    Packaging Info
    Package Weight 0.2 lb
    Box Dimensions (LxWxH) 5.4 x 5.1 x 1.0"

    OConnor C1243-1129 reviews

    114-55mm Threaded Universal Step-Down Ring is rated 4.8 out of 5 by 4.
    Rated 5 out of 5 by from Huge time saver I've owned the OConnor O Box WM for a few years now, and I'm constantly swapping threaded diameter step down rings for different assortment of lenses. They are stubborn and if pushed or bumped by an AC while changing lenses, they can fall out of the rubber bellows, which slows us down even more. I finally pulled the trigger on this, and I'll never look back. It is so smooth to just plug lenses into, but the cloth is light tight and stays tense to it's original shape once a lens is removed. It's the best of all worlds - no hard mount to get in the way or not fit quite right, no big black bag with a drawstring to get in the way or not quite cover all gaps (or on smaller lenses, envelop the whole lens), and no loose lens donut flopping between your lens and matte box. If you own an OBox and don't have this yet - Buy this now. Simple as that
    Date published: 2015-07-29
    Rated 5 out of 5 by from Excellent Product After realzing that the larger donut was a bit too large for some of my smaller glass, I ordered this ring for my Obox and it is GREAT. The flex material is totally lightproof and completely envelops the lens, ensuring no light leaks. I was a bit worried about the material stretching out and and not being taut after using different lens sizes, but it seems to contort right back into form, even after using it for 2 weeks straight with different lenses. This is a very clean and elegant solution as opposed to rubber donuts that don't always fit right or stay secure, or step-down rings that might not always fit EXACTLY the way you want. No need to carry any of those accessories around anymore, stump up for the (admittedly high) price and do it right. It's worth it to not have to worry about the aforementioned issues when using filters. NOTE - while this is made clear on the page, to reiterate, you NEED the bellows ring to screw this into. But frankly, if you're shelling out the kind of money for a mattebox system, that should be a no brainer anyway!
    Date published: 2015-02-09
    Rated 4 out of 5 by from Universal Ring 114-55 O'Connor Great performance with my O'connor OBox. Get the job done.
    Date published: 2015-02-17
    Rated 5 out of 5 by from grinded off threads for use on Misfit Atom mattebox 15mm Re: title - worked like a charm. The idea with BT's larger mattebox using their 143mm Black Hole is that it clamps into the mattebox, and can be used with a variety of lenses with the stretchy black material. Unfortunately, they do not yet make a Black Hole for their 114mm Atom box. I rent all sorts of lens packages determined per project, and have been dealing with finding/buying the correct assortment of step up rings and donuts to match each show. Finally, I took the gamble on this, figuring it's 114mm threaded, and might fit into the Atom's 114mm clamp mechanism. It turned out it was just a hair too large, so I tapped into a local metal shop and ground the threads off. Not the prettiest solution but now this OConner ring fits nicely in the Atom and functions pretty much like a Black Hole for their larger mb systems. Only thing that's missing is the inside threads to throw a circular polarizer or similar in. An unfortunate drawback, but still a better solution that dealing with handfuls of adapters. As far as the OConnor itself, it's probably a step up from their old one with the thin black rubber that eventually rips. I don't expect this cloth material to last forever though, and note that it'll get waves in the inner diameter so sometime a very small diameter lens might not be 100% shielded and you'll have to finagle it. There's small holes around the edges so perhaps the material is replaceable. We'll see how well it lasts. Hope this helps anyone else in a similar conundrum! Cheers
    Date published: 2017-05-06
    • y_2018, m_12, d_4, h_18
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_4
    • loc_en_US, sid_925411, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_bhphotovideo
    Be the first to review this item

    OConnor C1243-1129 Q&A

    OConnor C1243-1129 accessories

    See any errors on this page? Let us know.