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112mm circular polarizer filter with rotating mount

B + W Filter Company

B + W Filter Company 112mm Master High Transmission Circular Polarizer MRC Nano camera filter

SKU CH-KMDP-S2KDY

An 112mm circular polarizer that deepens skies, saturates colours and cuts glare from water or glass with up to 1.5 stops less light loss

  • Boosts natural colours and saturation for vivid landscape shots
  • Cuts glare from water, glass and glossy paint to reveal hidden detail
  • 112 mm thread fits large-diameter lenses without vignetting
  • Circular design works with TTL metering and autofocus on modern cameras
  • Maximum polarisation at 90° to the sun with 1.5-stop filter factor

112mm Master Circular Polarizer for Professional

The B+W 112mm Master High Transmission Circular Polarizer MRC Nano Filter is a high-quality optical accessory designed for serious photographers. It enhances natural colours and boosts saturation in both analog and digital workflows. The filter effectively reduces reflections from non-metallic surfaces like water, glass, and glossy paint. It is compatible with nearly all modern cameras supporting TTL metering and autofocus systems.

Rotating Mount Enables Live Polarisation Control

A precision rotating mount allows you to visibly adjust the polarisation effect directly through the viewfinder or monitor display. This tactile control lets you dial in the exact intensity needed for each composition without guesswork. The 112mm thread diameter fits corresponding large-diameter lenses securely. Durable construction ensures smooth rotation and reliable alignment during frequent field adjustments.

MRC Nano Coating Delivers High Transmission

The Master MRC Nano coating provides a multiplying factor of 2 to 3, equivalent to 1 to 1.5 f-stops, outperforming standard polarizers. Maximum polarisation effect is achieved at a 90-degree angle to the sun for dramatic landscape results. This high transmission design minimises light loss compared to conventional filters. Buyers needing smaller thread sizes or linear polarizers for specific technical applications should verify compatibility before purchase.

Highlights

  • Boosts natural colours and saturation for vivid landscape shots
  • Cuts glare from water, glass and glossy paint to reveal hidden detail
  • 112 mm thread fits large-diameter lenses without vignetting
  • Circular design works with TTL metering and autofocus on modern cameras
  • Maximum polarisation at 90° to the sun with 1.5-stop filter factor

Specifications

No published specifications for this item yet.

Questions about this item

What is the filter thread size and how does it affect lens compatibility?

The filter uses an 112mm thread, so it fits only lenses with a matching 112mm front diameter or an appropriate step-up ring.

What physical clearance does the rotating mount need when attached?

The rotating polarizer frame adds thickness, so check that your lens hood or matte box still clears the front element when the filter is turned.

How do you set the maximum polarization effect in the field?

Rotate the filter while viewing through the camera until reflections disappear; the strongest effect occurs at a 90-degree angle to the sun.

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