Key features:

• 1.3-8 stops of density control (ND2.5-256 equivalent)
• Hard stops at each end of the density range
• X Mark on ring to indicate cross polarisation
• Full ND stops are marked on ring
• Tactile control knob for easy rotation
• 36 layers of coatings

ProMaster Filter 72mm Variable ND - Digital HGX

This ProMaster HGX Prime Variable ND filter provides an exposure reduction of 1.3 to 8 stops (ND2.5-ND256 equivalent). It darkens the entire image allowing for slower shutter speeds and/or wider apertures with applications for both still photography and videography.

Mechanical "hard" stops at each end of the filter's range prevent bypassing the minimum or maximum useable density. A small, knurled knob provides a tactile experience making it easier to rotate the filter quickly and smoothly, simply by touch. This Tactile Control Knob is removable if you prefer not to use it.

White lines on the filter's ring indicate its density setting at each full stop. These lines represent specific densities of 2, 3, 4, 5, 6, and 7 stops with 1.3 and 8 stops being achieved at each end of the filter ring's range of travel (MIN and MAX positions).

An additional "X" mark on the filter's ring indicates the density point at which cross polarisation (X pattern) begins, slightly, to visually appear when using most wide-angle lenses (a phenomenon common to all Variable ND filters).

This filter has Repellamax II coatings, optical glass, and colour-corrected polarising films which combine to provide an extremely sharp image with excellent colour rendition as well as protection against moisture, oil, dirt, and dust. An incredible 36 layers of coatings are used in manufacturing this filter to an extremely high standard.