Vari-N-Trio Variable Neutral Density Filter

Vari-N-Trio combines the creative flexibility and convenience of our Vari-ND variable neutral density filter, the impact of our LB Warming Polarizer and the subtle, natural color boost of our LB Color Intensifier.


Create exciting motion effects, control glare and reflections, improve color saturation and tonal detail and give colors a bit more punch – all without stacking or changing filters. The color intensifier requires no adjustment. So just compose your shot, adjust focus, turn the polarizing ring to the desired look – and dial in density up to eight stops. It’s that easy!

“The Vari-N-Trio is for fans of the effects of the Vari-ND and the warming polarizer, who also want the richest colors possible captured in-camera, without having to resort to complex post-processing to get the same results.” Darwin Wiggett


Click for slideshow of the types of photos you could be creating with Singh-Ray Vari-N-Trio filter.


  • Use a sturdy tripod and locking cable release.
  • Open the Vari-N-Trio to minimum density to compose and focus, dial in the desired polarization and density, then close your viewfinder shutter to minimize the chance of a light leak. The Color Intensifier is always working and requires no adjustment.
  • As with any polarizer, you may need to adjust polarization to avoid uneven skies with wide-angle lenses.
  • For easier control of the polarizing effect, set the filter density to minimum and turn both rings together until you see the desired look.
  • For best results, always use the Vari-N-Trio within its 4 and 8-stop exposure range.
  • You can stack other Singh-Ray filters on the Vari-N-Trio, but be alert to possible vignetting. At least one of the filters must also have a standard ring mount (to reduce thickness and minimize vignetting, our thin-mount filters do not have outside threads).

How the Vari-N-Trio slows down your shutter speed in a “typical” daylight scene

Without filter

1/500 sec. at f8

Vari-N-Trio at minimum density (4 stops)

1/30 sec. at f8

Vari-N-Trio at middle density (6 stops)

1/8 sec. at f8

Vari-N-Trio at maximum density (8 stops)

1/2 sec. at f8

Close your aperture for even slower shutter speeds

1 sec. at f11

2 sec. at f16

4 sec. at f22




For a subtle boost in color intensity, combined with variable density and a warming polarizer, the Vari-N-Trio™ is your all-in-one solution.

It’s the secret weapon of many top outdoor photographers.

Vari-N-TRIO© Tony Sweet (

No Filter With Vari-N-Trio

Singh-Ray’s color intensifying feature is unlike any other “enhancing” filter.
It’s formulated to subtly brighten nature’s green colors, as well as red, orange and earth tones,
without any hint of color cast in the clouds or other white areas.
The amount of color intensification will vary according to the colors and light in your scene
– but you can always count on your images looking natural and alive.

Vari-N-TRIO© Darwin Wiggett (

Some Vari-ND shooting ideas

  • Experiment!
  • Loosen the ballhead on your tripod and try panning or “swiping” vertically on a subject such as trees, or horizontally across a landscape or to track a moving car or bird in flight.
  • From a stationary position, try shooting gently moving flowers, the motion of people walking, flowing water and passing clouds.
  • Dial in density to maintain wider apertures and narrow depth of field while, for example, shooting macro subjects, using a flash, taking portraits in brighter light or shooting video.
  • Once you get started, you’ll find that the Vari-N-Duo opens up a whole new world of creative possibilities!

Click here for tips and techniques from top pros on using the Singh-Ray Vari-N-Trio variable neutral density filter.

Clear selection

Available in a wide variety of circular, square and rectangular sizes. Click above to see sizes and prices.

Every Singh-Ray filter comes in a protective case
with an optical cloth liner.

Save on essential filter combos
used by top pros!

Cole Thompson demonstrates the use of Singh-Ray's Vari-ND variable neutral density filter together with Mor-Slo solid neutral density filters for amazing long exposures

Cole Thompson shows how the Vari-ND variable neutral density filter gives him added creative control when creating his dramatic long-exposure B&W images
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