Urth 37mm Circular Polarising (CPL) and ND64 Lens Filter Plus+ - Urth

Cut reflections and create motion blur with the Urth 37mm Circular Polarising (CPL) and ND64 Lens ...

Best current price£35.00from Park Cameras

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Product Information

Full details

This Urth 37mm CPL and ND64 Lens Filter Plus+ is for photographers seeking to enhance image contrast and achieve motion blur effects in bright conditions. Its key benefit is combining two essential filters into one compact unit. A potential caveat is the need for precise alignment for optimal CPL effect. This 2-in-1 filter cuts reflections, boosts color saturation, and reduces light by 6 f-stops, enabling creative long exposures even in daylight.

All features

BrandUrth

Extended Product Information

FAQs

What is the primary benefit of a CPL filter?

A CPL filter reduces polarized light, which significantly cuts glare and reflections from non-metallic surfaces like water and glass, while also increasing color saturation and contrast.

What does ND64 mean for my photography?

ND64 signifies a 6-stop reduction in light. This allows you to use slower shutter speeds in bright conditions, enabling effects like motion blur in water or clouds, or allowing you to shoot with wider apertures for shallow depth of field.

Can I use this filter on lenses with larger filter threads?

No, this specific filter is designed for 37mm threads. You would need a step-up ring to adapt it, but this can increase the risk of vignetting. It's best to purchase the filter in the correct size for your lens.

How do I know if the CPL effect is working?

Look through your camera's viewfinder or at the LCD screen. Rotate the outer ring of the filter and observe how reflections and glare change or disappear. The optimal setting varies depending on the light source and subject.

Does the ND64 stop affect image quality?

The filter uses high-quality German SCHOTT glass with advanced coatings to minimize light loss and maintain image clarity. While any filter can potentially affect image quality, this filter is engineered for high performance.

Is the filter durable?

Yes, the filter is constructed from tough magnalium and features a lifetime warranty, indicating a high level of durability and a commitment to long-term use.

How does this 2-in-1 filter compare to using separate CPL and ND filters?

It offers the convenience of combining two functions into one piece of equipment, saving space and reducing setup time. For precise, independent control over CPL and ND levels, separate filters might be preferred, but this offers excellent functionality for many common scenarios.

Troubleshooting

Difficulty rotating the filter ring

Ensure there is no debris on the filter threads or lens threads. If the filter feels stiff, it may need gentle cleaning or may be cross-threaded.

Excessive reflections or glare not being removed

Rotate the outer ring of the filter to find the polarizing angle that best cancels the reflections. This angle is dependent on the position of the sun and the reflective surface.

Image appears too dark or too bright

The ND64 provides a fixed 6-stop reduction. If this is too much light reduction for your desired exposure, consider using a lower stop ND filter or adjusting your camera settings accordingly (e.g., faster shutter speed, narrower aperture).

Noticeable vignetting in corners

While designed to be slim, strong vignetting can occur on very wide-angle lenses. Try zooming in slightly or using a different lens if vignetting is unacceptable.

Pros and Cons

Pros

  • Two filters in one saves space and simplifies setup.
  • Significantly reduces reflections and enhances color saturation.
  • Enables creative long exposures and motion blur in daylight.
  • High-quality German SCHOTT glass ensures excellent optical performance.
  • Durable magnalium construction offers longevity.
  • Backed by a lifetime warranty.

Cons

  • Requires careful rotation to achieve the desired CPL effect.
  • May introduce a slight color cast if not properly accounted for.
  • Potential for vignetting on very wide-angle lenses despite the slim rim.
  • Not ideal for situations requiring very subtle ND stops (e.g., 1-2 stops).

Setup, Compatibility & Care

Setup: Screw the filter onto the front of your 37mm lens. Rotate the outer ring of the filter to adjust the CPL effect; watch the reflections in your viewfinder or on your LCD screen to find the optimal setting. The ND effect is constant.

Compatibility: This filter is specifically designed for lenses with a 37mm filter thread. It is compatible with most camera systems and lenses featuring this thread size. Always check your lens's filter thread diameter before purchasing.

Care: Clean the filter gently using a soft lens brush to remove dust. For smudges or fingerprints, use a microfiber lens cloth with a small amount of lens cleaning solution, wiping in a circular motion from the center outwards. Avoid abrasive materials.

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