Urth ND Coverage Filter Kit - 67mm

ND stands for Neutral Density. Neutral Density filters reduce the amount of light entering the lens without affecting color balance.

These numbers represent the amount of light reduction (in f-stops). ND2 reduces light by 1 stop, ND4 by 2 stops, ND8 by 3 stops, ND64 by 6 stops, and ND1000 by 10 stops. Higher numbers mean more light reduction.

Yes, you can stack these filters to achieve greater light reduction. For example, stacking an ND64 and an ND8 would give you a total reduction of 9 stops (6 + 3).

Consider the lighting conditions and your desired creative effect. For mild light reduction or slight background blur in bright conditions, use ND2-ND8. For significant light reduction, long exposures, or strong motion blur, use ND64 or ND1000.

German SCHOTT glass is renowned for its high quality, optical clarity, and consistency, ensuring minimal distortion and accurate color transmission.

Urth filters are backed for life, reflecting their durability and quality.

The ultra-slim rim design is specifically engineered to minimize vignetting. However, on extremely wide-angle lenses (e.g., wider than 24mm on full-frame), some minimal vignetting might still occur, especially when stacking multiple filters.

Ensure you have the correct filter thread size for your lens. If the size is correct, try gently rotating the filter back and forth while applying slight pressure. Do not force it.

The ultra-slim rim is designed to prevent this, but on very wide-angle lenses, some vignetting may occur, especially when stacking filters. Try removing a filter or using a wider lens without the filter.

While the nano-coating minimizes this, slight color shifts can occur with heavy ND filtration. Adjust white balance in post-processing. Ensure the lens itself is not the cause of a color cast.

Ensure the filter is screwed on properly and is the correct size for your lens. If the lens filter thread is damaged, this can cause looseness; seek professional lens repair.