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40.5mm variable ND filter with silver adjustment knob

Nisi

Nisi ND-VARIO Pro Nano 40.5mm 1.5-2.7 Enhanced Variable ND Filter camera filter

SKU CH-MWAC-PEH3M

40.5mm variable neutral density filter providing 1.5 to 2.7 optical density for 5 to 9 stops of exposure control

  • 5 to 9 stops exposure control for bright-light flexibility
  • 5mm thread fits compatible lenses directly
  • 5 to 2.7 density range enables precise adjustment
  • Silver knob rotation gives smooth density transitions
  • Pro Nano coating maintains optical clarity

40.5mm Variable ND for Photographers

This 40.5mm variable neutral density filter provides 5 to 9 stops of exposure reduction. It suits photographers and videographers who need flexible control over shutter speed and aperture in changing light. The filter threads directly onto compatible lens fronts.

Smooth Density Transition Across 1.5 to 2.7 Range

Rotating the silver knob adjusts density continuously between the 1.5 and 2.7 optical density values. This design delivers a smooth transition without abrupt shifts during sustained use. It maintains consistent exposure control throughout long video takes or extended shooting sessions.

Direct Thread Mount with Knob Adjustment

Installation requires threading the 40.5mm ring onto the lens barrel until secure. The external silver knob then rotates to vary density. Over-tightening the filter or forcing the knob past its endpoints can bind the mechanism or damage the threads.

How it compares

Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.

Price $51.99
Typical for this category: the median of 1,281 items is $48.99.

Specifications

No published specifications for this item yet.

Questions about this item

Does the 40.5mm thread generate noticeable vignetting or heat buildup during long video takes?

The slim 40.5mm frame is designed to minimise vignetting on wide-angle lenses, and the neutral-density glass does not produce additional heat during extended recording sessions.

What lens thread size must my current lens have for this filter to mount directly?

Your lens needs a 40.5mm front filter thread; step-up or step-down rings are required for any other diameter.

Will the 1.5 to 2.7 density range work smoothly with older manual-aperture lenses I still use?

Yes, the variable 1.5–2.7 stop range is adjusted by rotating the silver knob, giving continuous density control independent of the lens aperture mechanism.

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