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The Urth 58mm ND2-400 Variable ND Filter is designed for photographers and videographers seeking enhanced creative control in variable lighting conditions. It offers 1 to 8.66 f-stops of light reduction, enabling wider apertures for shallower depth of field and slower shutter speeds for motion blur effects, even in bright light. A key caveat is that like all variable ND filters, it can sometimes introduce color casts at its extremes, requiring post-processing adjustments. This filter features premium Japanese AGC glass with nano-coatings for neutrality and easy cleaning, and a locking rim for precise adjustment.
| Brand | Urth |
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'ND2-400' refers to the range of Neutral Density (ND) filtration the filter provides. ND2 means it reduces light by 1 f-stop, while ND400 reduces light by approximately 8.66 f-stops. The variable nature allows you to adjust anywhere within this range.
Yes, the variable ND capability allows you to use slower shutter speeds in brighter conditions, which is essential for achieving motion blur in long exposure photography, such as smoothing water or light trails.
The filter is made with premium Japanese AGC glass and features 8 layers of nano-coating, aiming for excellent light transmission and color neutrality. However, like all variable ND filters, extreme settings may introduce slight color casts or artifacts that might require post-processing correction.
This specific filter has a 58mm thread size. You will need to check your lens's specifications or cap size to ensure compatibility. If your lens has a different thread size, you would need a filter with that specific size, or use step-up/step-down rings.
Use a dedicated lens cleaning cloth and a small amount of lens cleaning solution. Gently wipe the surface of the glass. Avoid using abrasive materials or harsh chemicals. Ensure the filter is completely dry before storing.
The locking rim mechanism allows you to set your desired ND density and then lock it in place. This prevents accidental rotation of the filter during shooting, ensuring your exposure settings remain consistent.
Yes, Urth states that by purchasing this filter, you will provide funding to local communities to plant 5 trees in areas affected by deforestation.
This is likely due to cross-polarization. Rotate the outer ring of the filter to a lower ND setting or remove the filter. Try not to use the filter at its highest density settings (ND400) with very wide-angle lenses.
Variable ND filters can introduce color shifts. Adjust your camera's white balance or correct the color cast in post-processing software. Try rotating the filter to a mid-range setting to see if the cast lessens.
Ensure you are using the correct filter size (58mm). Gently try to screw it on, and if resistance is met, do not force it. Check the lens threads and filter threads for any debris or damage.
Double-check that the filter is screwed in fully and securely. If it still feels loose, there might be a slight tolerance difference between the lens and the filter; consider using a lens adapter or a different brand of filter.
Setup:
Compatibility:
This filter is designed for lenses with a 58mm front filter thread. Always check your lens specifications or cap size to confirm compatibility. It is generally compatible with most camera systems, including DSLRs and mirrorless cameras.
Care:
