Urth ND8 3 Stop Square Lens Filter - 100 x 100mm
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Product Information
Full details
The Urth ND8 3 Stop Square Lens Filter is designed for landscape and long-exposure photographers who need to control light intake when shooting in bright environments. By reducing light by 3 f-stops, this filter allows for creative motion blur in water or clouds and the use of wider apertures for a shallower depth of field, though it requires a compatible 100mm filter holder system for mounting.
All features
| Brand | Urth |
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Extended Product Information
FAQs
Can I use this with any lens?
It is compatible with any lens as long as you have the correct size adapter ring and a 100mm filter holder system.
Does this filter cause a color cast?
No, the 20-layer nano-coating is specifically engineered to maintain a neutral color balance.
Is this filter waterproof?
The nano-coating provides a layer of protection against moisture and smudges, though it should be wiped dry immediately if exposed to heavy rain.
Can I stack this with other filters?
Yes, provided your square filter holder has multiple slots available.
What is the difference between an ND8 and an ND64?
An ND8 reduces light by 3 stops, whereas an ND64 reduces light by 6 stops, making the ND64 better for even longer exposures in brighter conditions.
Troubleshooting
Visible vignetting at wide angles
Ensure the filter is pushed fully into the holder and verify that you are not using too many stacked filters which can cause physical obstruction.
Images appear blurry
Check that the filter surface is clean of dust and finger oils; also verify that the camera is set to autofocus or manual focus correctly while the filter is in place.
Pros and Cons
Pros
- Excellent optical clarity from German SCHOTT glass
- Effective neutral color balance prevents unwanted tints
- High-quality scratch-resistant nano-coating
- Standard size ensures broad system compatibility
Cons
- Requires a separate filter holder system for attachment
- Square format is bulkier to carry than circular screw-on filters
- No built-in frame handles for clean mounting
Setup, Compatibility & Care
To use the Urth ND8 filter, you must first attach an appropriate lens adapter ring and a 100mm square filter holder to your camera lens. Slide the glass filter carefully into the primary slot of the holder. Always ensure the holder and filter are clean before shooting. When not in use, store the filter in its protective case to avoid debris on the nano-coating. Clean only with a dedicated microfibre lens cloth; if significant smudges appear, use an optical-grade lens cleaning solution applied to the cloth, not directly to the glass surface.