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Square 6.6 inch glass filter with metallic coating on both sides

Mitomo

Mitomo 6.6x6.6" TrueND 2.1 Filter

SKU CH-CNSY-11YRP

6.6x6.6" neutral-density filter with 2.1 density blocks infrared to 750 nm for colour-neutral exposure control

  • Accurate 2.1 density transmission for precise exposure control
  • True colour neutrality prevents unwanted tint in images
  • Zero colour shift maintains original scene fidelity
  • Infrared blocked up to 750nm eliminates IR pollution
  • 6x6.6 inch crystal glass with dual alloy coating

Professional Neutral Density Filter

The Mitomo 6.6x6.6" TrueND 2.1 Filter is a professional camera filter designed for photographers and cinematographers who require precise light reduction. It uses crystal clear glass coated with a metallic alloy film on both sides to deliver accurate transmittance. This construction ensures true neutrality without introducing color shifts. It is built for demanding imaging workflows where color fidelity is critical.

Square Filter Installation

The filter measures 6.6x6.6 inches and fits standard matte boxes or filter holders that accept the 6666 form factor. Installation involves sliding the glass into the designated slot until it seats securely against the frame. Ensure the holder is clean to prevent dust or debris from trapping between the glass and the frame. Misalignment in the holder can cause vignetting or light leaks during shooting.

2.1 Density And IR Control

The 2.1 density provides substantial light reduction for long exposures or wide apertures in bright conditions while maintaining a flat spectral curve in visible light. The coating effectively blocks infrared pollution up to 750nm to prevent color contamination in digital sensors. Extreme density stacking may push the limits of the flat curve performance. Very low-light scenes may require a lower density filter for adequate exposure.

How it compares

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

Price $617.99
Pricier than about 93% of the 1,281 comparable items (median $48.99).

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the 6.6x6.6" TrueND 2.1 Filter is performing correctly after mounting it?

Check that images show no colour shift and that infrared light up to 750nm is blocked, confirming the flat spectral curve is working as intended.

What comes in the box with the Mitomo 6.6x6.6" TrueND 2.1 Filter and what must I purchase separately?

The filter itself is supplied; a compatible 6.6x6.6" filter holder or matte box must be bought separately to mount it on your lens.

Which version of the Mitomo TrueND filter should I choose for a 6.6-stop light reduction?

Select the 2.1 density model — it provides approximately 6.6 stops of neutral density reduction while maintaining true neutrality and zero colour shift.

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