A magnetic lens filter snaps onto a thin ring that stays on the lens, so swapping a polarizer for a neutral density filter takes a moment instead of several turns of a thread. Most systems are sold as kits that combine the ring, one or more filters and a magnetic cap.
The six products below range from a 49mm four-filter kit to an 82mm polarizer set, plus one adapter that turns existing screw-in filters into magnetic ones. Details come from each product’s listing page. We have not used these filters ourselves. Optical and coating claims are the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Thread size | The ring must match the lens thread, such as 49, 67, 77 or 82mm |
| Filter types | CPL reduces reflections; ND filters allow slower shutter speeds in bright light |
| Frame thickness | A slim frame helps avoid darkened corners on wide lenses |
| Caps and pouch | A magnetic cap and a pouch protect the glass in a bag |
| Adapter option | A ring pair can convert filters you already own |
Specs at a Glance
| Kit | Thread size | In the box | Notes |
|---|---|---|---|
| K&F Concept 67mm | 67mm | CPL, ND8, ND64, ring, cap | Maker lists AGC optical glass with 28 coating layers |
| Kase Wolverine Revolution Plus | 77mm | CPL, ND8, ND64, ND1000, ring, cap, bag, tool | Colored frames identify each filter |
| Urth 4-in-1 Plus | 49mm | UV, CPL, ND8, ND1000, ring, 2 caps | Maker lists SCHOTT glass and a magnalium frame |
| Kase adapter ring kit | 77mm | Two magnetic rings | About 13 g; converts a screw-in filter |
| K&F Concept CPL, ND2-32 and diffusion | 82mm | CPL, variable ND, black diffusion 1/4, ring, cap, case | Variable ND with hard stops |
| K&F Concept CPL | 82mm | CPL, ring, cap | 5.3mm slim frame |
The 6 Best Magnetic Lens Filters
1. K&F Concept 67mm Magnetic Filter Kit
A five-piece kit for 67mm lenses with a CPL, an ND8 (3 stops) and an ND64 (6 stops), a magnetic basic ring and a lens cap. The maker lists Japanese AGC optical glass with 28 multi-layer coatings and describes a swap time of under one second.
Suits: a 67mm lens that needs a starter set. Strengths: a CPL plus two ND strengths. Weaknesses: only fits one thread size. Skip it if your lens is not 67mm.
View K and F CONCEPT 67mm Magnetic Filter CPL+ND8+ND64+Magnetic Basic Ring+Lens Cap on Amazon
2. Kase 77mm Wolverine Revolution Plus Master Kit
A 77mm kit with a CPL, ND8, ND64 and ND1000, an inlaid adapter ring, a magnetic lens cap, a filter bag and a 3D tool. The maker describes tempered optical glass with nano coatings, a 0.1 percent reflectivity figure for the CPL, an ultra-slim ring that can stay on the lens and colored frames to identify each filter.
Suits: landscape and long exposure work. Strengths: four filters and color-coded frames. Weaknesses: fits only 77mm. Skip it if you only need a polarizer.
View Kase 77mm Wolverine Revolution Plus Master Magnetic Filters Kit on Amazon
3. Urth 49mm 4-in-1 Magnetic Essentials Kit (Plus)
A small-lens kit with magnetic UV, CPL, ND8 and ND1000 filters, an adapter ring and two caps. The maker lists 20-layer nano-coated SCHOTT glass, a magnalium frame and an ultra-slim rim intended to avoid vignetting. The listing also shows a weight of 0.15 g, which cannot be right for a four-filter kit, so ignore that figure.
Suits: compact cameras and lenses with a 49mm thread. Strengths: four filters plus two caps. Weaknesses: a conflicting weight entry. Skip it if your lens uses a larger thread.
View Urth 49mm 4-in-1 Magnetic Essentials Lens Filter Kit (Plus) on Amazon
4. Kase 77mm Magnetic Adapter Ring Kit
Two aluminum alloy rings, one for the 77mm lens and one for a 77mm screw-in filter, that convert an existing threaded filter into a magnetic one. The listing gives about 13 grams for the set and says it works with 77mm lenses and traditional 77mm thread filters.
Suits: owners of screw-in filters. Strengths: keeps filters you already own. Weaknesses: no filter included. Skip it if you need a complete kit.
5. K&F Concept 82mm Magnetic CPL, ND2-32 and Black Diffusion Kit
An 82mm video-minded set with a CPL, a variable ND2-32 (1 to 5 stops) with hard stops, a 1/4 black diffusion filter, a magnetic ring, a lens cap and a carrying case with a carabiner. The maker mentions a Teflon ring for smooth, quiet rotation.
Suits: hybrid photo and video work. Strengths: a variable ND and a diffusion filter. Weaknesses: fits only 82mm. Skip it if you want fixed ND strengths.
View K and F CONCEPT 82mm Magnetic CPL and ND2-32 and Black Diffusion 1/4 Filter Kit on Amazon
6. K&F Concept 82mm Magnetic CPL Filter Kit
A three-piece set with a circular polarizer, a magnetic basic ring and a filter cap. The maker lists a 5.3mm ultra-slim frame, AGC glass and 28 layers of coating, and notes the packaging may be old or new.
Suits: a single polarizer for an 82mm lens. Strengths: a slim frame and a simple set. Weaknesses: no ND filter. Skip it if you want long exposures.
View K and F CONCEPT 82mm Magnetic CPL Filter Kit, Basic Adapter Ring and Lens Cap on Amazon
Best Picks by Category
These labels come from the price, star rating and number of ratings shown on each Amazon listing on November 2, 2026. They summarize listing data and are not hands-on test results.
- Top rated: Kase 77mm Wolverine Revolution Plus Master Kit — 5 out of 5 from 5 ratings, about $378.
- Most reviewed: K&F Concept 67mm Magnetic Filter Kit — 357 ratings averaging 4.4 out of 5.
- Best value: K&F Concept 82mm Magnetic CPL Filter Kit — the lowest-priced pick with a 4.4 rating and at least 200 ratings, about $70.
- Lowest price: Kase 77mm Magnetic Adapter Ring Kit — about $32, rated 4.2 out of 5.
- Premium option: Kase 77mm Wolverine Revolution Plus Master Kit — about $378, rated 5 out of 5.
Price, Rating and Review Comparison
The table sorts the picks by price and adds the star rating and the number of ratings, which shows how much feedback sits behind each average. Prices change often, so confirm the current price on Amazon.
| Product | Price | Rating | Ratings | Price tier |
|---|---|---|---|---|
| Kase 77mm Magnetic Adapter Ring Kit | $32 | 4.2 / 5 | 48 | Budget |
| K&F Concept 82mm Magnetic CPL Filter Kit | $70 | 4.4 / 5 | 357 | Budget |
| K&F Concept 67mm Magnetic Filter Kit | $111 | 4.4 / 5 | 357 | Mid-range |
| Urth 49mm 4-in-1 Magnetic Essentials Kit (Plus) | $155 | 4.1 / 5 | 177 | Mid-range |
| K&F Concept 82mm Magnetic CPL, ND2-32 and Black Diffusion Kit | $175 | 4.2 / 5 | 88 | Mid-range |
| Kase 77mm Wolverine Revolution Plus Master Kit | $378 | 5 / 5 | 5 | Premium |
How Much Feedback Backs Each Rating
A high average from a handful of ratings is weaker evidence than a slightly lower average from thousands. Here is how the sample size looks for each pick.
- K&F Concept 67mm Magnetic Filter Kit: 357 ratings, a moderate sample behind its 4.4 average.
- Kase 77mm Wolverine Revolution Plus Master Kit: only 5 ratings, so treat the 5 average cautiously.
- Urth 49mm 4-in-1 Magnetic Essentials Kit (Plus): 177 ratings, a moderate sample behind its 4.1 average.
- Kase 77mm Magnetic Adapter Ring Kit: only 48 ratings, so treat the 4.2 average cautiously.
- K&F Concept 82mm Magnetic CPL, ND2-32 and Black Diffusion Kit: only 88 ratings, so treat the 4.2 average cautiously.
- K&F Concept 82mm Magnetic CPL Filter Kit: 357 ratings, a moderate sample behind its 4.4 average.
Care and Setup
- Check the thread size printed on the lens barrel, marked with a diameter symbol.
- Leave the magnetic ring on the lens and cap it when not shooting.
- Clean glass with a blower first, then a lens cloth.
- Keep filters in their pouch with the caps on.
Mistakes to Avoid
- Ordering the wrong thread size.
- Mixing rings from different systems, since magnets are not always compatible.
- Stacking several filters on a wide lens without checking the corners.
- Leaving filters loose in a bag.
Magnetic Lens Filter FAQ
Can I mix brands?
Not reliably. Each maker uses its own ring and magnet layout, so stay within one system.
Will one kit fit all my lenses?
Only lenses with the same thread size. Each kit here is listed for one size, so check every lens first.
The Short Version
For a 67mm starter set, the K&F 67mm. For a four-filter 77mm kit, the Kase Wolverine. For small lenses, the Urth 49mm. To convert existing filters, the Kase adapter. For video, the K&F 82mm variable ND set. For a lone polarizer, the K&F 82mm CPL.
