Urth Polarized Lens Filter (CPL) - 77mm

Name: Urth Polarized Lens Filter (CPL) - 77mm
Brand: Urth
SKU: fjk3lhl4ke
Availability: InStock

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Product Information

Full details

The Urth 77mm Polarized (CPL) Lens Filter is designed for photographers seeking to enhance image contrast and color saturation by reducing polarized light reflections. Its key benefit is cutting out up to 99.9% of glare from water, glass, and non-metallic surfaces, leading to more vivid and impactful images. A potential caveat for some users might be the slight light reduction (1.33 f-stop) when fully polarized, which may require adjustments in shooting conditions or settings. This filter features premium Japanese AGC glass with an 8-layer nano-coating for clarity and protection, an ultra-slim Magnalium rim to prevent vignetting, and is double-threaded for stacking additional filters.

All features

Brand	Urth

Extended Product Information

FAQs

What does a CPL filter do?

A Circular Polarizing (CPL) filter reduces reflections from non-metallic surfaces like water and glass, cuts glare, and enhances color saturation and contrast in your photos, making skies appear deeper blue and foliage more vibrant.

How do I know if this filter fits my lens?

This filter has a 77mm thread size. Check the front of your lens for a marking that looks like 'ø77mm'. This indicates the filter's compatibility.

Will this filter affect my camera's autofocus or metering?

The Urth CPL filter is designed to work with modern camera systems and generally does not interfere with autofocus or exposure metering. However, the slight light reduction might require minor exposure compensation.

Can I use this filter with other filters?

Yes, the filter is double-threaded, allowing you to stack it with other filters (like ND filters) or attach a lens cap.

How much light does the filter reduce?

When set to its maximum polarization effect, the filter reduces light by approximately 1.33 f-stops.

What is the warranty on this filter?

Urth offers a lifetime guarantee on the Magnalium rim construction, suggesting a commitment to durability and quality.

What does 'Polarized Light' mean in photography?

Polarized light refers to light waves that vibrate in a single plane, often caused by reflections off non-metallic surfaces. This can result in washed-out images with silvery glare. A CPL filter specifically targets and reduces this type of light.

Troubleshooting

Filter causes dark corners (vignetting)

The ultra-slim rim is designed to minimize this. Ensure you are not stacking too many filters. If using a very wide-angle lens, try removing the lens hood or consider a wider filter if available.

Difficulty achieving desired effect

Ensure the filter is rotated correctly. The CPL effect is angle-dependent. Try adjusting your shooting position relative to the reflective surface and rotate the filter until the glare is minimized and colors are enhanced.

Image appears darker than expected

This is due to the light reduction (1.33 f-stop) of the CPL filter when polarized. Adjust your camera's exposure settings by increasing ISO, opening the aperture, or using a slower shutter speed to compensate.

Filter is difficult to attach or remove

Ensure you are aligning the threads correctly. If it feels stuck, try gently twisting in the opposite direction to loosen it. Avoid forcing the filter, which could damage the lens or filter threads.

Pros and Cons

Pros

Significantly reduces unwanted reflections from water and glass.
Enhances color saturation and contrast for more impactful photos.
Made with high-quality Japanese AGC glass and an 8-layer nano-coating.
Ultra-slim design prevents vignetting on most lenses.
Durable Magnalium construction with a lifetime guarantee.
Contributes to environmental conservation through tree planting initiatives.

Cons

Introduces a slight light reduction (1.33 f-stop) when fully polarized.
Requires careful rotation to achieve the desired polarization effect.
May not be suitable for fast-moving subjects in low light due to light reduction.
77mm is a specific thread size and may require step-up rings for smaller lenses.

Setup, Compatibility & Care Instructions

Setup:

Ensure your camera lens has a 77mm front filter thread. This is usually indicated by a ø symbol followed by '77mm' on the lens barrel.
Gently screw the Urth CPL filter onto the front of your lens in a clockwise direction until it is snug. Do not overtighten.
To adjust the polarization effect, rotate the outer ring of the filter while looking through your camera's viewfinder or at the live view screen until the desired result is achieved.

Compatibility:

Lens Size: This filter is specifically designed for lenses with a 77mm filter thread diameter.
Stacking: The double-threaded design allows for stacking with other filters (e.g., ND filters) or attaching compatible lens caps.
Camera Systems: Compatible with any camera system that accepts 77mm threaded lenses.

Care:

Cleaning: Use a soft lens brush or an air blower to remove dust. For fingerprints or smudges, use a microfiber lens cloth. For tougher spots, slightly dampen the cloth with lens cleaning solution or distilled water. Always wipe gently from the center outwards.
Storage: Store the filter in its protective case when not in use to prevent scratches and dust accumulation. Keep away from extreme temperatures and humidity.
Handling: Avoid touching the glass surface directly. Handle by the metal rim.