K&F CONCEPT 67mm ND100000 (16.6 Stops) ND Neutral Density Lens Filter

In this review of the K&F CONCEPT 67mm ND100000 neutral density filter, the verdict is straightforward: photographers who need extreme light reduction for solar viewing or very long exposures will appreciate this filter's performance and build quality. The filter delivers dramatic attenuation with its 16.6 stops rating, and customers repeatedly note its usefulness for solar eclipse imaging where clear sunspots and safe viewing are priorities. It is also praised for being easy to mount and remove, making it a practical choice for field work where quick changes are required.

Key Features

• Extreme light reduction: The 16.6 stops ND rating provides very strong attenuation, enabling safe solar viewing and extremely long exposures without overexposure.
• 67mm thread size: The common 67mm fit makes it compatible with many lenses and easy to add or remove during a shoot.
• 28 multi-layer nano coatings: The multilayer coatings reduce reflections and improve contrast for clearer images of bright subjects like the sun.
• Durable construction: The filter is built to handle outdoor use and protects the front element of the lens when in place.
• Simple installation: Reviewers report the filter is straightforward to screw on and off, which speeds setup during time-sensitive events.

Who It's For

This filter is aimed at photographers and hobbyists who need an ultra-strong neutral density solution: those shooting solar eclipses, other bright sun phenomena, or creative long exposures where nearly complete light blocking is required. It is particularly useful for people who value lens protection and consistent, low-glare results from a multi-coated optical element.

It is less suited for everyday neutral density use where gentler stops are preferred, or for photographers who require variable ND control. If you want subtle exposure adjustments for handheld video or portrait work, a lower-density or variable ND may be a better fit.

Pros & Cons

Pros

• Excellent for solar photography and long exposures thanks to the very high attenuation.
• Good build quality and protection for the lens front element during outdoor use.
• Multi-layer nano coatings help preserve image contrast and reduce flare when shooting bright subjects.
• Easy to install and remove, which reviewers found helpful during eclipse events.

Cons

• Extreme density can make composition and focusing difficult on some cameras without live view or external focusing aids.
• Occasional reports of blown-out images when camera exposure or settings were not matched to conditions, so careful testing is required.

Specifications

Brand	K&F CONCEPT
Filter type	Neutral Density (ND)
Density	ND100000 (approx. 16.6 stops)
Thread size	67mm
Coatings	28 multi-layer nano coatings
Series	Nano X Series

Our Verdict

The K&F CONCEPT 67mm ND100000 is a practical, well-built extreme ND filter that delivers strong light reduction and reliable protection for the front of the lens. Photographers shooting solar eclipses or deliberately long exposures will find it excellent value for its purpose, provided they prepare for the challenges of focusing and exposure at such high attenuation levels.

Frequently Asked Questions

Can this filter be used for solar eclipse photography?
Yes; reviewers specifically note successful solar eclipse use with visible sunspots when paired with appropriate camera settings and safe viewing practices.

Will the filter affect image contrast and flare?
The 28 multi-layer nano coatings are designed to reduce reflections and maintain contrast, and customers report good image quality for bright scenes.

Is this suitable for everyday ND use?
Not usually; the very high 16.6 stops density is intended for extreme reduction and specialized work rather than general-purpose exposure control.