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Park Cameras£39.00Visit shop Urth 52Mm Nd8-128 (3-7 Stop) Variable Nd Lens Filter Plus+ Undx128pl52
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This Urth 67mm Variable ND Lens Filter Plus+ is for photographers and videographers seeking greater creative control in dynamic lighting conditions, particularly for nature and landscape work. Its primary benefit is the ability to precisely adjust light reduction from 3 to 7 stops, enabling wider apertures for shallow depth of field or slower shutter speeds for motion blur effects without overexposure. A potential caveat is the learning curve associated with variable ND filters to avoid unwanted artifacts like the 'X-effect'. Key features include its adjustable ND range, a locking rim to prevent over-rotation, high-quality German SCHOTT glass with 20-layer nano-coating, and a durable magnalium construction.
| Brand | Urth |
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A Variable ND filter reduces the amount of light entering the lens, allowing you to use slower shutter speeds for motion blur or wider apertures for shallow depth of field in bright conditions without overexposing the image.
The filter has markings on its rim indicating the approximate range from ND8 (3 stops) to ND128 (7 stops). Visual inspection and test shots are often used to fine-tune the exact setting.
The 'X-effect' is a cross-like pattern that can appear in images when using variable ND filters at their extreme settings due to internal polarization. The Urth Plus+ filters feature a locking rim mechanism designed to prevent over-rotation and minimize this effect.
The filter features an ultra-slim rim design to help prevent vignetting (darkening of the corners). However, on very wide-angle lenses, some minor vignetting might still occur, especially at the maximum ND setting. Test shots are recommended.
ND8-128 indicates the range of light reduction, equivalent to 3 to 7 f-stops. Other ND filters might offer a fixed number of stops (e.g., ND64 for 6 stops) or a different variable range.
The nano-coating enhances light transmission, reduces reflections, and helps maintain color neutrality, ensuring clearer and more accurate images compared to filters with less advanced coatings.
The 'Plus+' designation typically indicates enhanced features or quality compared to previous or standard versions, such as improved glass, coatings, or construction.
This typically occurs at the higher end of the ND range. Ensure the locking rim is properly engaged at the minimum or maximum settings. If the issue persists, try slightly adjusting the rotation or consider using a fixed ND filter for critical shots at the highest densities.
This can also be an indication of the 'X-effect'. Verify that the filter is correctly mounted and that you are within the operational range of the filter. Ensure the filter is clean.
Confirm you are using the correct filter thread size for your lens. Ensure both the lens threads and filter threads are clean and free from debris. Attempt to screw it on gently and straight, without cross-threading.
While this filter is designed for color neutrality, some minor shifts can occur, especially at extreme settings. Adjust white balance in post-processing or use your camera's custom white balance feature. The 20-layer nano-coating aims to minimize this.
Setup:
Compatibility:
This filter is designed for lenses with a 67mm filter thread. It is compatible with both still photography cameras and video cameras. Check your lens specifications for its filter thread size. Urth offers this filter in various sizes to accommodate different lenses.
Care:
