K&F Concept CPL ND Filter Kit for DJI Osmo Action 6 Review
A K&F Concept 6 filter kit, part number SKU.2708, built with multi-coated optical glass and a screw-on fit specifically for the DJI Osmo Action 6 Essential Combo.
| Brand | K&F Concept |
|---|---|
| Part number | SKU.2708 |
| Filters included | CPL, ND8, ND16, ND32, ND64, ND256 |
| Filter count | 6 |
| Glass | Multi-layer coated optical glass |
| Fit | Screw-on, DJI Osmo Action 6 Essential Combo |
| Best for | DJI Osmo Action 6 Essential Combo owners wanting a complete CPL and ND filter set for both glare control and exposure control in one purchase |
Product Overview
K&F Concept builds this as a complete filter solution for the Osmo Action 6 Essential Combo rather than a single-filter purchase, pairing one CPL polarizer with five ND filters covering a wide exposure range from ND8 up to ND256.
The CPL handles glare and reflection control, while the ND filters are meant to let the camera shoot at wider apertures or slower shutter speeds in bright conditions without overexposing, covering everything from mild to strong light reduction in one kit.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
CPL plus ND8, ND16, ND32, ND64, ND256.
Better light transmission, less color distortion.
Engineered for the Osmo Action 6 Essential Combo.
CPL cuts reflections, ND filters control light.
ND8 through ND256 in one kit.
Design and Build Quality
Every filter uses multi-layer coated optical glass, which the listing credits with superior light transmission and minimal color distortion compared to uncoated glass. The screw-on design is custom-engineered specifically to fit the Osmo Action 6 Essential Combo's lens mount for a secure, seamless install.
The listing gives item dimensions of about 5.24 inches long, 5.2 inches wide and 0.87 inches tall, which reads as the filter case or packaging size rather than a single filter's own thickness. The part number on the listing is SKU.2708, and the title additionally lists FD141 as the product's model designation.
Performance in Everyday Use
The CPL filter is built to reduce glare and reflections off water, glass and similar surfaces, while the five ND filters (ND8, ND16, ND32, ND64, ND256) step down light in increasing amounts, giving a wide working range for long exposure shots or cinematic footage in bright daylight.
Because the whole set totals 6 filters per the listing's unit count, a user can swap between CPL and a specific ND strength depending on conditions rather than carrying separate single-filter purchases.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Filter count | 6 filters (CPL + 5 ND) | Listing states CPL ND8 ND16 ND32 ND64 ND256 and unit count 6 | 8.8 | Confirms the stated filter lineup and count |
| Glass coating | Multi-layer coated optical glass | Listing states high-quality optical glass featuring multi-layer coating | 8.4 | Confirms the stated glass construction |
| Fit | Screw-on, Osmo Action 6 Essential Combo | Listing states custom-engineered screw in fit design to fit seamlessly with Osmo Action 6 | 8.5 | Confirms the stated fit and mount type |
| CPL function | Reduces glare and reflections | Listing states CPL filter reduces glare and reflections | 8.3 | Confirms the stated CPL function |
| ND range | ND8 to ND256 | Listing title lists ND8 ND16 ND32 ND64 ND256 | 8.5 | Confirms the stated ND filter range |
| Dimensions | About 5.24 x 5.2 x 0.87 inches | Listed item dimensions give length 5.24 in, width 5.2 in, height 0.87 in | 8.0 | Confirms the stated kit dimensions |
Who Should Buy It
- DJI Osmo Action 6 Essential Combo owners
- Bright daylight shooting needing exposure control
- Reducing glare off water or glass with the CPL filter
- Long exposure or cinematic action camera footage
- Anyone shooting on a different action camera model or without the Osmo Action 6 Essential Combo's matching lens mount
- Only fits the Osmo Action 6 Essential Combo, not other action camera models or mounts
- Six separate filters means tracking and swapping multiple small glass pieces rather than one variable filter
- No case or storage detail beyond the listed item dimensions
- Sold as one fixed 6 filter set rather than smaller or larger kit options on this listing
Full Specifications
How It Compares
| Feature | K&F CONCEPT | Typical option | Higher-tier option |
|---|---|---|---|
| Filter range | CPL plus 5 ND strengths (ND8 to ND256) | Single ND filter only | Comparable multi-filter kit |
| Glass coating | Multi-layer coated optical glass | Uncoated plastic filter | Comparable coated-glass filter |
| Fit | Custom screw-on for Osmo Action 6 | Universal clip-on fit | Comparable camera-specific filter kit |
| Use case | Glare control and wide exposure range | Glare control only | Comparable combined CPL/ND kit |
| Kit size | 6 filters included | 1 to 2 filters included | Comparable larger filter kit |
Alternatives Worth a Look
A 6 piece CPL and ND filter kit with multi-coated optical glass and a screw-on fit built specifically for the DJI Osmo Action 6 Essential Combo. It suits that exact camera combo well across a wide exposure range, with the main limit being it will not fit a different action camera.
Frequently Asked Questions
How many filters are in this kit?
6: one CPL and five ND filters (ND8, ND16, ND32, ND64, ND256).
What camera does this fit?
The DJI Osmo Action 6 Essential Combo specifically, per the listing.
What is the glass made of?
Multi-layer coated optical glass, per the listing.
What does the CPL filter do?
Reduces glare and reflections, per the listing.
What is the widest ND filter included?
ND256, per the listing.
What is the part number?
SKU.2708, per the listing.
This review is based on the manufacturer's stated filter types, coating, compatibility and dimensions as listed. It is editorial analysis of the stated specifications, not independent hands on testing of this specific unit's optical performance or color accuracy.