Urth ND64 Filter - 100 x 100mm - 6 Stop - Plus+
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Product Information
Full details
The Urth 100x100mm ND64 (6 Stop) Filter Plus+ is designed for landscape and long-exposure photographers who need precise light control to enhance their creative imagery. It provides the ability to slow down shutter speeds significantly for motion blur or open apertures in bright sunlight, though it requires a dedicated square filter holder system for mounting rather than attaching directly to your lens threads.
All features
| Brand | Urth |
|---|
Extended Product Information
FAQs
Will this filter cause a color cast?
The Urth Plus+ series uses 20 layers of nano-coating specifically designed to maintain a neutral color balance, minimizing unwanted tints.
Can I stack this with other filters?
Yes, if your filter holder has multiple slots, you can stack other filters, though stacking too many may increase the risk of vignetting or optical degradation.
Is this filter waterproof?
The nano-coating provides water-repellent properties, making it easier to wipe away moisture, though it should not be submerged.
Does it fit my 77mm lens?
The filter itself is 100x100mm. You will need a 100mm filter holder with a 77mm adapter ring to attach it to your lens.
How do I know if 6-stops is right for me?
6-stops is ideal for 'middle-ground' long exposures, such as smoothing out water or motion in late afternoon or early morning light.
Troubleshooting
Image appears too dark
The 6-stop reduction is significant. Increase your shutter speed or ISO settings to compensate for the light loss.
Visible light leaks or flare
Ensure the filter is seated properly in the holder and that there is a foam gasket if your holder supports it to prevent light from entering behind the glass.
Soft focus or blurry images
Check that the glass is clean and that your camera's autofocus system is not struggling; you may need to focus before sliding the filter into the holder.
Pros and Cons
Pros
- High-quality German SCHOTT glass for superior sharpness
- Effective 6-stop reduction for daylight long exposures
- Nano-coating maintains neutral color balance
- Protective coating resists scratches and smudges
- Universal fit for 100mm square filter systems
Cons
- Requires a separate square filter holder system
- Not compatible with circular lens threads
- More cumbersome to carry than circular filters
Setup, Compatibility & Care
To use this filter, ensure you have a 100mm square filter holder system attached to your lens via the appropriate adapter ring. Slide the filter into the front slot of the holder carefully to avoid smudges on the glass surface. When not in use, store the filter in its protective case to prevent scratching. To clean, use a high-quality microfiber cloth or lens cleaning pen; if the filter becomes oily, use a small amount of photographic-grade lens cleaning solution. Avoid using paper towels or household cloths, which can scratch the specialized nano-coatings.