EXUS Circular P.L Mark II

Marumi EXUS Circular P.L Mark II

The Marumi EXUS Circular P.L Mark II is an upgraded model, ideal for photographers who prioritize neutral color balance and a high transmittance polarizer.

• Enhances contrast and saturation—deepening blue skies while maintaining natural color tones
• The High Transmission Circular Polarizer (HTC) delivers high transmittance 45% (2.3 x Filter Factor, 1.2 stops, 400-700nm average, Typical Value)*
• Advanced coating with eighteen layers total on both sides
  
• Anti-Static Coating (ASC) prevents dust and dirt adhesion, allowing them to be easily blown off
• Water- and oil-repellent coating repels water with just an air blower. Sweat, lotion, fingerprints, and grease wipe off effortlessly
  
• ASC Coating and light-blocking ridges inside the ring reduce the reflectance below 0.6% (420-680nm average, Typical Value)*
• Realized an ultra-thin aluminum rotating mount to avoid vignetting
• Teflon coating on male threads makes attach-/detachment to/from the lens smoother
• Knurling enables easy and smooth handling, embedded in the lightweight and thin aluminum frame
  
• Made in Japan, proven lamination technology refined over decades.

*Verified by factory spectrophotometer measurements. Details review in "TECHNICAL DATA".

Color Neutrality meets HTC

The EXUS Circular P.L Mark II successfully balances improved color neutrality with high light transmittance, delivering excellent performance that neither compromises color accuracy nor brightness.

It is an enhanced polarizer compared to the conventional EXUS Circular Polarizer. Thanks to its superior true-to-life color reproduction—which ensures your images reflect the original scene more accurately and preserve natural color balance—it can be used constantly on the lens due to its high transmittance, functioning similarly to a lens protector while effectively reducing reflections and glare.

What are the benefits of using a polarizing filter?
Why is a polarizer recognized among most photographers as an essential must-have filter? Does Photoshop or another equivalent editing tool work instead of Polarizer?

A polarizing filter allows you to;
- control reflections from non-metallic objects; the surface of water, window, or glossy coating/painting.
- prevent and reduce glare, still however, allow plenty of light through. It also makes subjects underwater transparent.
- Enhance color saturation and contrast, especially under a scene of deep blue sky, vivid white clouds, spring greenery, or autumn color of leaves.

Have you ever experienced, when taking landscape photography, ending up with a little different color from the actual landscape you have seen? The sky must have been more vivid and bluish in your eyes.
A polarizing filter can properly contrast the crystal blue sky and the white clouds.
Many photographers predominantly carry a polarizing filter, particularly for landscape photography next step after Lens Protector/UV filter in terms of protection, for some reason.
The effects of polarizers cannot be easily mimicked with digital editing. Carrying a polarizer makes your image more vivid and clear, turning the actual landscape you've seen into your picture.

The two images below show the elimination of reflection from the surface of water with/without a polarizing effect by EXUS Circular PL.

Another two before-/after images below show how the polarizing effect changes the impression: the slightly hazy blue left into a vivid bluish sky on the right, as well as the autumn color of leaves, becomes vital and enhanced.

Photographers should keep in mind that a polarising filter will reduce a certain amount of light passing through the camera body in exchange for giving a polarizing effect.
Therefore, it is better not to use a polarizer under poor light conditions.
It is also better to consider attaching a High Transmittance Circular Polarizer (HTC) that is equivalent close to one F-stop while other conventional polarizers are equivalent to 1.5 stops.

In post-production, the Polarizing effect cannot be reproduced because they change the light entering your lens
Those are the reason why the Polarizing filter is a must-have filter.

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