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This Urth 95mm Variable ND filter is for photographers and videographers needing to control exposure in dynamic lighting. Its primary benefit is enabling creative techniques like shallow depth of field and motion blur. A potential caveat is the possibility of the 'X-effect' if over-rotated, though the locking rim helps prevent this. It offers 1 to 8.6 stops of light reduction using Japanese AGC glass with 8-layer nano-coating, an ultra-slim magnalium rim for reduced vignetting, and a locking mechanism to maintain your chosen setting.
| Brand | Urth |
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ND2-400 indicates the range of light reduction. ND2 allows 1 stop of light reduction, while ND400 reduces light by approximately 8.6 stops. The 'variable' aspect means you can adjust anywhere within this range.
The 'X-effect' is a visible cross-polarization pattern that can appear. The Urth Variable ND features a locking rim to help prevent over-rotation. Ensure you rotate the filter to your desired setting and then lock it securely.
Generally, yes, but it depends on the lens hood design. The ultra-slim rim is designed to minimize interference, but some wider or petal-shaped hoods may still cause slight vignetting when the filter is used at its maximum density.
While it can reduce light pollution, it's generally not ideal for astrophotography. Dedicated filters for astrophotography are usually specific to light pollution or star type and don't require variable ND capabilities. This filter is best for bright daylight conditions.
Japanese AGC (Asahi Glass Co.) is renowned for its high quality, clarity, and consistent optical properties, ensuring minimal distortion and excellent light transmission with accurate color reproduction.
The nano-coating enhances light transmission, reduces reflections, and provides some resistance to water and smudges, making the filter easier to clean and improving overall image quality.
The Urth 95mm Variable ND Lens Filter comes with a lifetime quality guarantee.
Ensure the filter's ultra-slim rim is compatible with your lens. If using on a wide-angle lens, a larger filter size or a step-up ring might be necessary. Try using a less extreme ND setting.
This occurs when the two polarizing elements within the filter are rotated too far. Use the filter's locking rim to set a specific ND value and ensure it is securely locked. Avoid excessive rotation beyond the intended range.
Ensure the filter is screwed on straight and not cross-threaded onto the lens. If the issue persists, a slight amount of dust or debris might be present; clean the threads gently.
Variable ND filters can sometimes introduce slight color casts. Try adjusting white balance in post-processing. Ensure you are not at the extreme ends of the ND range where color shifts are more common. Clean the lens and filter.
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