Singh-Ray Vari-N-Duo Filter
Singh-Ray Filters logoSingh-Ray Vari-N-Duo Polarizing Variable Neutral Density FilterClick to visit our blog


FREE STANDARD SHIPPING with any Singh-Ray filter purchase! Promotion may be withdrawn at any time, or at the discretion of Singh-Ray Corp. Applies to orders placed via phoneor Singh-Ray.com website. No adjustments or refunds can be made for previously placed orders. Promotion is for FREE standard shipping within the Continental US (a $12.95 value) or a credit of $12.95 towards standard shipping costs to other destinations with the purchase of one or more filters. Offer not valid on non-filter accessory purchases.

Vari-N-Duo™ adds our LB Warming Polarizer to
the Vari-ND™ -- both in one versatile filter !

The Vari-N-Duo mounted on a lens

Now you can polarize your "blurred-motion" images for even more drama and color saturation with the Vari-N-Duo Variable Neutral Density Filter

  • 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 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
  • Available in 77mm only (Standard and Thin Ring mounts)

PopPhoto.com logo that links to an article on Popular Photography's 30 top gear picks of 2009 (including our Vari-N-Duo)

The Singh-Ray Vari-N-Duo was choosen as one of 2009's 30 top gear picks by Popular Photography magazine. Read about it here






NOTE: Due to the nature of the Vari-N-Duo Filter, its "profile thickness" is significantly greater than most filters (17mm for standard mount, 14mm for thin mount). The profile thickness of either version may cause vignetting when used with wide-angle lenses, especially on cameras with full-frame sensors. Due to the vast number of combinations of cameras, lenses, and other factors, we can NOT predict under what circumstances vignetting will occur, and to what degree. We suggest simply adjusting your focal length, position, and/or composition to remove the vignetting -- use your digital camera's display for reference.

NOTE 2: 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.

Vari-N-Duo Polarizing Variable ND Filter

Available ONLY in 77mm (standard and thin ring mount)

Add to CartVari-N-Duo in Standard Ring Mount - $390  qty:

Add to CartVari-N-Duo in Thin Ring Mount - $440  qty:


With the LB Warming Polarizer added Tony Sweet calls Singh-Ray's Vari-N-Duo "much better for most of my outdoor shooting"

When fine-art nature photographer Tony Sweet made the exciting image seen above, he was able to slow his exposure down to 10 seconds to convey the surging action of the mountain stream while he also controlled the specular highlights reflecting off the stones and moss to reveal their true colors -- and he did it all with one filter. The new Vari-N-Duo filter combines the ability of the classic Vari-ND filter to slow your shutter speeds anywhere from two to eight f-stops along with the glare and reflection control of the LB Warming Polarizer. To better appreciate the value of the polarizing feature, place your cursor anywhere on the image above and make your own 'with-and-without' visual comparison.

"I've been very happy shooting with the Vari-ND for the past couple of years," says Tony, "but I'm ready to say Singh-Ray found a neat way to upgrade it. For my needs, it's much better to have the LB Warming Polarizer in the same filter. When I was making this image of the stream in Provo, Utah, it was really impressive to see how beautifully the Vari-N-Duo cut out the glare off the rocks and moss."

Closeup of Vari-N-DuoUntil now, Tony and many other outdoor photographers have been "stacking" their Vari-ND filter with an LB Warming Polarizer to slow the exposure times -- by anywhere from 2-2/3 stops to as much as 8 stops -- at the same time their LB Polarizer blocked the glaring light reflections from the sky, water, and glossy surfaces. "Stacking the two filters worked OK," says Tony, "but controlling both filters at once required patience. The new Vari-N-Duo gives me easier and better control. It has the 'Min/Max' density control ring on the outer rim (see photo above) with the polarizing ring right next to it. It didn't take long to get used to adjusting them to the settings I wanted."


Step-up Rings  |  Replacement Filter Pouches  |  Push-On Lens Caps for Thin-Mount Filters

Homepage  |  Image Gallery  |   Quick Reference Filter Chart  |  Bookstore  |  Brochure

Contact Us  |  Register for Updates  |  Privacy Policy  |  Secure Shopping

RayVu Optical Cleaner  |  FAQ

Watch our Using Singh-Ray Filters in The Field video

Vari-N-Trio     |    Vari-N-Duo   |  Vari-ND
LB Warming Polarizer  |  Gold-N-Blue Polarizer  |  LB ColorCombo  |  LB Color Intensifier
Graduated ND Filters  |   Reverse ND Grads  |  Solid ND
NEW  15-Stop Mor-Slo NEW    |  10-Stop Mor-Slo  |  5-Stop Mor-Slo
Soft-Ray Diffuser  |   Hi-Lux Warming UV Filter  |  I-Ray Infrared Filter
Strip Filters  |  A-13 Warming Filter  |  Sunset Warming Filter  |  #10 Magenta Filter

Singh-Ray Filters
2721 SE Highway 31, Arcadia, FL 34266-7974 USA

For fastest response, telephone Singh-Ray at 800-486-5501 or 863-993-4100
during business hours, 9am to 5pm Eastern US time, Monday-Friday.

Most e-mail questions are answered by the next business day,
but please allow up to 5 business days for response.
. Please include the MAKE and MODEL of camera and lenses you are using when you email us.
Please read our e-mail Policy.

All prices are in U.S. Dollars
Accessories are not included

All contents copyright 1997-2014 Singh-Ray Corporation. All rights reserved.
Singh-Ray Filters is a division of Singh-Ray Corp.
Singh-Ray, Singh-Ray Filters, Vari-ND, Gold-N-Blue, Vari-N-Duo, Vari-N-Trio,
LB ColorCombo,Hi-Lux, I-Ray, Soft-Ray, Mor-Slo and RayVu
are trademarks of Singh-Ray Corp.
Prices, product specifications, and availability are subject to change without notice.

Singh-Ray merchandise is warranted against manufacturing defects for 90 days from the date you receive it. Our liability is limited to either the repair or replacement of our product, at our option. In no event shall Singh-Ray Corp. or its agents be liable for any direct or indirect damages or losses resulting from use of our merchandise.