B+W

ND Vario Series

Thanks to its variable density, the first B+W Vario ND filter can be adjusted exactly to meet individual requirements. To this end, it comes with a continuous setting function with which the photographer can determine the required density reduction between +1 and +5 f-stops. 

To prevent aberrations, the light reduction cannot be set beyond a critical level. The XS-Pro Digital ND Vario MRC nano thus guarantees professional image results, even with high filter factors. 
The newly developed Vario ND filter can be adapted to a wide range of subject situations and photographic requirements. Sometimes large apertures are needed in bright ambient light in order to separate a model optically from the background.

Using several minutes of exposure time, architectural photographers can make people passing through the work space “invisible”. In landscape photography, flowing water or the surface of the sea can be made to appear fluffy and soft like cotton candy. 

Tip


With long exposure times, DSLR photographers should cover or close the optical viewfinder in order to avoid exposure measuring errors. At very high densities, slight color shifts in the image may occur.

These can subsequently be eliminated by using white balance or by working in RAW format in the image-processing program.

Info


Due to different directions of light incidence (light rays scatter differently in the center of the picture than at the edges), an aberration may occur when taking the picture. This first becomes visible in the corners and in extreme cases it can appear in a cross pattern. This  becomes noticeable with wide angle lenses 28 mm (equivalent to 35 mm format) and less. These irregularities also occur with excessive dimming. As the B+W ND Vario features a stop for the brightest and darkest positioning, this is avoided.

In order to obtain even image results the focal length should not be less than f = 28 mm (35 mm).

Before and after shots


 



Without B+W ND Vario filter



With B+W ND Vario filter - 4 f-stops



With B+W ND Vario filter - 3 f-stops



With B+W ND Vario filter - 1 f-stop



B+W OVERVIEW FILTER TYPES 

B+W Premium Line XS-Pro Digital MRC   |   B+W Professional Line F-Pro MRC

Product program

TECHNICAL SPECIFICATIONS - ND VARIO VALUES & SIZES

F-stopsOptical densityFilter factorTransmission [%]F-stops
10.32 x50.01
20.64 x25.02
30.98 x12.53
41.216 x6.34
51.532 x3.15
Lens thread40,54649525558626772778295
Front thread4349525558626772778286105
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