Bower 2x DGII Teleconverter with 7 Elements for Nikon F

Bower 2x DGII Teleconverter with 7 Elements for Nikon F

Bower 2x DGII Teleconverter with 7 Elements for Nikon F

In Stock
Order in the next 0:00:00 to ship today

Product Highlights

  • F Mount Teleconverter
  • 2x Magnification Factor
  • Communication Between Lens & Camera
  • Multi-Coated Optics Limit Ghosting/Flare
  • 7 Element Design Ensures Sharp Imagery
  • Compatible with Select F Mount Lenses
Show moreShow less

Lens Mount: Nikon F

Canon EF


Nikon F

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: Nov 19th

James Z. (Wk 1)

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

Bower SX7DGN overview

  • 1Description

Add some versatility to your existing Nikon F-mount lens collection with this 2x DGII Teleconverter from Bower, which contains 7 elements to ensure sharp imagery. This teleconverter utilizes multi-coated optics that will double the effective focal length of your F lens, for example it will convert an 85mm lens to 170mm. This doubling effect has a light loss of about 2 stops, meaning an f/1.4 lens will become an f/2.8 lens. Additionally, this teleconverter offers full communication between the lens and camera to enables autofocus and other electronically controlled functions.

UPC: 636980411996
In the Box
Bower 2x DGII Teleconverter with 7 Elements for Nikon F
  • Front and Rear Caps
  • Carry Pouch
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Bower SX7DGN specs

    Mount Nikon F
    Magnification 2x
    Light Loss 2 Stop
    Length 2.15" / 55 mm
    Diameter 2.65" / 67 mm
    Weight 8.0 oz / 227.0 g
    Packaging Info
    Package Weight 0.44 lb
    Box Dimensions (LxWxH) 3.6 x 3.3 x 3.2"

    Bower SX7DGN reviews

    2x DGII Teleconverter with 7 Elements for Nikon F is rated 3.6 out of 5 by 5.
    Rated 4 out of 5 by from a very nice addition This is a very good, reasonably priced teleconverter that I now take on all trails for nature photos. Mounting seemed a bit tight at first, but now is familiar and quick. I've used it on my D700 with both appropriate (>70mm, max ap of at least 4) and inappropriate (35mm, zoom with max ap of 5.6) lenses, and it's worked very well except for lack of crisp focus on the 35mm, for which it was not designed. I was very pleased with the sharp focus (manual, of course) on a 70-300mm f4.5-5.6 zoom lens at full extension in full sun, even though that is not a recommended lens type. AF on appropriate lenses works well & quickly, and metering etc. carries through fine for me especially in low/med light. One tip though is when shooting in full daylight, be sure to take another shot at lower EV, since otherwise the image you get at what the meter shows as ideal exposure may in fact be too bright. This TC for my amateur use certainly beats carrying the weight or expense of a super telephoto.
    Date published: 2012-01-28
    Rated 4 out of 5 by from Good Product, What I expected I find this product works best with a tripod, on manual focus, and I even use a wireless remote with it to help steady the lens when the teleconverter is attached. Autofocus can have its moments where it struggles if there's a lot of noise in the area (I mostly do nature photography). I have shot handheld photos with this product but moving subjects aren't going to come out clear, only still subjects will come out decent. The teleconverter definitely added the extra reach I wanted but does lose a hint of clarity and isn't good in low light situations. Overall, I got exactly what I expected and definitely enjoy using this product.
    Date published: 2016-05-04
    Rated 1 out of 5 by from 2x DGII Teleconverter with 7 Elements for Nikon F by Bower Researched the product and from what I read in various sites it sounded like exactly what I wanted. B&H shipped promptly w/o any problems. However, upon receiving it and trying it out I was extremely disappointed. Did not function anywhere near what I expected so contacted B&H to take advantage of their return policy. So far the payment has not been authorized, but I anticipate no problems. I will definitely buy from them in the future as I have done in the past.
    Date published: 2016-03-20
    Rated 5 out of 5 by from Excellent Product I purchased this product for use with my Nikon 105 prime lens but have found it to work just fine with my all my Nikon lens including my 18 to 200 dx lens. This is especially useful when using my 24 t0 120 as it makes it more of a travel lens. The picture quality with the 2X converter does not appear to suffer to much with the tele converter lens. Auto focus works quite well at F8.
    Date published: 2016-09-12
    Rated 4 out of 5 by from Good Product for the cost Works well. Better quality than I was expecting. Made in Japan. I have to use manual focus with this lens.
    Date published: 2013-06-19
    • y_2018, m_11, d_8, h_15
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_5
    • loc_en_US, sid_829515, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_bhphotovideo
    Be the first to review this item
    Customer Photos

    Bower SX7DGN Q&A

    Bower SX7DGN accessories

    See any errors on this page? Let us know.