In-depth review
K&F Concept Nano-X ND1000 Fixed Filter (77mm) Review (2027)
In-depth review of the K&F Concept Nano-X ND1000: fixed 10-stop density, 77mm thread, Nano-X coatings, and budget long-exposure value.
K&F Concept Nano-X ND1000 Fixed Filter (77mm)
A fixed 10-stop ND1000 in 77mm with Nano-X multi-coated optical glass.
Our verdict
The fixed ND1000 is the budget long-exposure filter done honestly: a true 10 stops on multi-coated optical glass with a waterproof surface, in the 77mm size most landscape lenses share. It gives up the QuartzLine's quartz neutrality and every variable's flexibility, and in return costs a fraction of both while avoiding X-cross entirely.
What we like
- True ND1000 fixed density, 10 stops for daylight long exposures
- Optical AGC glass with 28-layer multi-coating in K&F's Nano-X series
- Waterproof surface coating shrugs off sea spray and drizzle
- Fixed design means no X-cross and no variable ND density behavior
What to watch out for
- 77mm thread; other lens sizes are separate purchases
- One density only, so exposure control falls to shutter speed and ISO
- Budget glass trails premium quartz for the most critical color work
What owners report: K&F Concept Nano-X ND1000 Fixed Filter (77mm)
Synthesized from recurring themes in long-term owner feedback.
Most praised
- A true fixed density gives budget landscape shooters clean long exposures with no cross pattern
- The waterproof surface shrugs off sea spray and drizzle at coastal locations
- Multi-coated glass at this price makes a first long-exposure filter an easy experiment
Common complaints
- Owners with several lens sizes must buy the matching thread for each
- Exposure control with one density falls entirely to shutter speed and camera settings
- Budget glass trails premium quartz on the most colour-critical work
Who it is for
Landscape and travel photographers adding a first dedicated 10-stop filter for daylight long exposures on 77mm lenses.
Fixed density, honest behavior
A fixed ND1000 has one job: turn midday into multi-second exposures for empty streets, silked water, and streaked clouds. With no polarizers to rotate against each other, there is no X-cross and no density gradient across the frame, the two failure modes that haunt variable filters at this depth.
Glass and coatings
K&F builds the Nano-X line on optical AGC glass with 28 layers of multi-coating and a waterproof surface treatment, practical details for coastal and waterfall work where spray is constant. Expect competent neutrality for the price class rather than the fused-quartz perfection of the premium pick.
The 77mm reality
This listing is 77mm only. Owners of 67mm or 82mm lenses need the matching size or step rings, and a single fixed density means shutter speed and ISO do all exposure negotiation. Within those rules, it is the lowest-cost route into real 10-stop work in this guide.
Key specifications
- Type
- Fixed ND
- Density
- ND1000, 10 stops
- Thread
- 77mm
- Glass
- Optical AGC glass, 28-layer multi-coating (maker rated)
- Series
- Nano-X
- Model
- KF01.896
Sources: K&F Concept product data, CamelCamelCamel, Desertcart product data
Also consider
PolarPro QuartzLine ND1000
A fixed 10-stop ND in quartz glass for silky long-exposure landscapes.
Why consider it: The premium 10-stop: fused quartz neutrality and a brass anti-seize frame for critical work.
- Type: Fixed ND
- Density: ND1000, 10 stops
Urth ND Lens Filter Kit Plus
A fixed ND trio (ND8, ND64, ND1000) with stacking flexibility and clean glass.
Why consider it: A fixed-density kit adding ND8 and ND64, so waterfalls and shade work get their own honest densities too.
- Type: Fixed ND kit, 3 filters
- Density: ND8 (3 stops), ND64 (6 stops), ND1000 (10 stops)
Research-based assessment. TrueGear has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.
Questions, answered
What exposure does an ND1000 give at midday?
Roughly, a 1/250 base exposure becomes about 4 seconds at the same aperture and ISO, enough to fully silk water and blur crowds out of a scene.
Can I use it for video?
Only in extreme light; 10 fixed stops are far too deep for general video, where the variable filters in this guide are the right tools.