Singh-Ray 77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Thin Ring)

Singh-Ray 77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Thin Ring)

Singh-Ray 77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Thin Ring)

B&H # SIVNDPT77 MFR # RT-90
In Stock

Product Highlights

  • Neutral Density with Warming
  • Adjust Density From 2-2/3 - 8 f/ Stops
  • Thinner Mount
  • Made With Glass

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 10th

James Z. (Wk 1)

Ralph H. (Wk 2)

Arturo M. (Wk 3)

Rich P. (Wk 4)

Valeria A. (Wk 5)

Official Rules

OFFICIAL B&H $500.00 GIFT CARD DASH SWEEPSTAKE 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

Email

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

$0 VA Sales Tax Collected on This Item
$440.00
Add to Wish List Item in Wish List

Singh-Ray RT-90 overview

  • 1Description

The Singh-Ray 77mm Vari-N-Duo Polarizing Variable Neutral Density Filter gives you the incredible benefits of two filters in one. With this unique glass filter, you can not only slow down the action but add in the effects of a warming polarizer.

Heretofore, when photographers wanted to create this effect, they had to "stack" filters on the lens - a sure ticket to vignetting. Now, this all-in-one system permits you to carry one filter to achieve the desired results. Please note that Singh-Ray thin mount filters do not have a front thread.
Additionally - the design of the Vari-N-Duo Filter may introduce irregularities when used with very wide angle lenses, especially on full-frame cameras. Adjust your focal length and reduce the filter density setting until the irregularities disappear.

Front Min/Max density ring lets you adjust density from 2-2/3 to 8 f/stops - greatly extends exposure times
Polarization is easily controlled by rotating the ring just behind the Min/Max ring
The glass LB Warming Polarizer reduces glare from sky, water, wet rocks, and other reflective surfaces
Filter thread on front ring of Standard mount lets you add either a Mor-Slo 5-stop Solid ND Filter or a Cokin holder for ND Grad Filters
In the Box
Singh-Ray 77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Thin Ring)
  • Protective Case
  • Optical Cloth Liner
  • Warranted Against Manufacturer's Defects for 90-Days
  • Table of Contents
    • 1Description

    Singh-Ray RT-90 specs

    Filter Type Variable ND Combination
    Combination Type Circular Polarizer, Warming
    Density 0.8 (2.6 Stops) to 2.4 (8 Stops)
    Shape Circle
    Circular Size 77 mm
    Front Accessory Thread / Bayonet Unthreaded
    Physical Feature Slim
    Filter Material Glass
    Coatings None
    Packaging Info
    Package Weight 0.26 lb
    Box Dimensions (LxWxH) 4.1 x 3.7 x 1.0"

    Singh-Ray RT-90 reviews

    77mm Vari-N-Duo Polarizing Variable Neutral Density Filter (Thin Ring) is rated 4.3 out of 5 by 32.
    Rated 3 out of 5 by from Good, but have a small flaw I used to use a 10 stop filter before deciding to purchase the singh-ray. There were two reasons for that: 1) To get different gradients, and 2) reduce the inconvenience of focusing the camera, shifting to manual focus and screwing the lens in. The singh-ray solved these problems, but introduced another: vignetting. On a full frame, I lose at least 5-8mm of focal length if I want to have a clear picture. I picked up the filter with the thin mount to reduce vignetting, but it happens anyways. I am still going to keep the filter for images where I would need to zoom in.
    Date published: 2012-05-22
    Rated 5 out of 5 by from Fabulous water works tool! I got this filter especially because I enjoy playing with long exposures on moving water - ocean waves, streams, waterfalls. I was able to get that milky effect on a bright sunny day. The only thing I haven't gotten used to yet is that it will vignette on my 5D with 24-105 at somewhere around 35mm or less, as most everyone has pointed out. I was a little apprehensive about the warming polarizer but I'm glad I got this filter and not the one without the polarizer. Like any, you can choose to use the polarizing effect or not. And you can add graduated neutral density in front of it. Awesome purchase.
    Date published: 2012-10-29
    Rated 5 out of 5 by from Nice Effect to slow movement I bought the slim model instead of the regular model to avoid some of the vignetting issues on my canon 24-70 but it doesnt seem to matter. I still have vignetting until about 30mm. The filter does as advertised. I noticed that near the maximum neutral density if my light source is not uniform I get some strange lighting issues. Also it would be nice if the circular polarizer were marked for reference points. Also the filter rotates a bit too easily. Would be nice if there were more resistance.
    Date published: 2011-04-03
    Rated 4 out of 5 by from Var ND Duo Filter I finally justified the expense last month. Living close to Great Falls of the Potomac provides the perfect spot to shoot long exposure waterfalls. The filter works as advertised. I use it on my 24 to 70 on full frame Nikon. Vignettes around 24mm. The build quality is great. Very easy to select degree of filtering. The effect is stunning. Just the cost keeps this from 5 star review! Will attempt some of the 30 sec exposure Tony Sweet raves about soon.
    Date published: 2011-03-01
    Rated 3 out of 5 by from Vignettes on 24mm or Wider but Great Ideally you should mount this on 28mm or 35mm if you want to eliminate the dark corners. The instructions clearly state this but the specification on B&H do not. Another artifact that happens is blotchy density using a full frame sensor if you go too dark with the ND portion of the filter see picture below which was shot with a Nikon D800E and a 24mm 1.4, 1 sec, f10 at Max ND.
    Date published: 2013-12-19
    Rated 5 out of 5 by from Incredible Product! This filter is the real deal. It comes with a very nice case, the build quality of the filter is second to none, and the optical quality is extraordinary. It is easy to screw on to the front of my Canon EF 24-105mm f/4 L IS USM Lens. Setting the degree of polarization and ND is very easy. My routine is: -Set white balance -Set the ND to min -Orient the camera for the picture you intend to shoot -Set the degree of polarization -Ensure the focal length is >45mm (Using a Canon EOS 5D Mark III Digital SLR) -Focus -Switch to manual focus -Set the degree of ND -Meter in live view (the viewfinder is worthless when the ND is all the way up) It may sound like a lot, but it's relatively quick and painless. One more thing, I recommend using this filter exclusively with a tripod. The slow exposures this filter can create are beautiful! I really like the variable ND function, and the options it creates in broad daylight. The polarizer is excellent, and the warming effect is nice. The lamest thing about this filter is the vignette. My experience precludes anything wider than 50mm. However, if you're patient and take panoramas, this isn't much of a limitation. Singh-ray needs to make a larger version. I'd buy it in a heartbeat. Bottom line, if you can get over the vignette, you'll dig this filter. If you even think the vignetting will bug you, I recommend you hold off.
    Date published: 2012-04-16
    Rated 4 out of 5 by from Handy As much as I like that it is both a Neutral Density and a Polarizing filter, the thickness is not wide angle friendly. On a full frame sensor, I need to go at least 40mm to avoid the vignetting. From a guy who usually shoots (landscaper here) 16-20mm, there is huge adjustment period. However, for my portrait work during mid day, this filter is awesome. Shooting at f2.8 with the Neutral Density dialed way up is a fun feature.
    Date published: 2011-10-24
    Rated 4 out of 5 by from I would recommend this product I use this filter with thin ring to reduce the vignetting to a stop for super wide angle lens. I am very happy it does not have any vignetting effect on my Olympus ED 50-200mm (100-400mm equiv.) lens. I also bought other Singh-ray filters from B+H such as LB color combo and ND Vari (Standard) for different purpose. My intention of buying this filter is specifically for landscaping scenes as it gives me 2-8 stop ND plus it produces great colors for landscaping. The result as it turned out was to my satisfaction because I am able to reduce very challenging bright light condition while enhancing the natural colors. I wish Sing-Ray produces various sizes for this filter.
    Date published: 2012-02-17
    • y_2018, m_12, d_4, h_17
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_32
    • loc_en_US, sid_622168, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_bhphotovideo
    Be the first to review this item
    Customer Photos

    Singh-Ray RT-90 Q&A

    Singh-Ray RT-90 accessories

    See any errors on this page? Let us know.