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Eighteen layers, and a claim about chromatic aberration

K&F CONCEPT 67 mm, Japanese glass, 18 nano layers

Eighteen layers of nano coating on Japanese glass for 11 €, with a claim to cut chromatic aberration — and a sales-rank citation where a seventh specification would go.

K&F Concept 67 mm UV filter with its green-tinted coating catching the light

K&F CONCEPT 67 mm, Japanese glass, 18 nano layers

Eighteen layers of nano coating on Japanese glass for 11 €, with a claim to cut chromatic aberration — and a sales-rank citation where a seventh specification would go.

Thread size
67 mm, in the title, and the fifth bullet says it suits all lenses with a 67 mm thread, naming Canon, Nikon, Sony, Samsung and Fuji
Glass
JAPANESE OPTICAL GLASS, in the second bullet, credited with first-class light transmission, improved optical clarity and colour fidelity. The same claim the 13 € PROfezzion on this shelf makes; the 9 € Amazon Basics names no glass at all
Coating description
EIGHTEEN LAYERS of green anti-reflective nano coating, in the third bullet — the highest count on this shelf, against twelve on the PROfezzion and two on the Hama. The same bullet claims the coating blocks ultraviolet light, raises contrast and eliminates light haze at sea or in high mountains
Frame thickness
NOT PUBLISHED as a figure: the fourth bullet calls it an extremely thin filter and leaves it there. The 8 € Hama publishes 3.4 mm and the 13 € PROfezzion 3 mm, so the one page here claiming thinness is the one that does not measure it
Material
Not named for the frame. The glass is specified and the ring is not
Front thread provision
Not mentioned
Stated transmission figure
NOT PUBLISHED — which is the odd gap on a page that counts eighteen coating layers. Layers exist to raise transmission, and the 13 € PROfezzion publishes the resulting figure at 99.5 per cent minimum
Amazon reference
B0C1YZBPRK (same reference on 6 Amazon marketplaces)
EAN
6942052514675
  • Eighteen nano layers on named Japanese optical glass, for 11 €
  • A stated effect on chromatic aberration, which no other filter here claims
  • Calls itself extremely thin and publishes no thickness

Best for: A 67 mm standard zoom used in bright coastal or mountain light, where haze and reflections matter more than the gap to the 9 € Amazon Basics.

≈ $11 / £11 / 11 €
Check price on Amazon

Specifications

Thread size
67 mm, in the title, and the fifth bullet says it suits all lenses with a 67 mm thread, naming Canon, Nikon, Sony, Samsung and Fuji
Glass
JAPANESE OPTICAL GLASS, in the second bullet, credited with first-class light transmission, improved optical clarity and colour fidelity. The same claim the 13 € PROfezzion on this shelf makes; the 9 € Amazon Basics names no glass at all
Coating description
EIGHTEEN LAYERS of green anti-reflective nano coating, in the third bullet — the highest count on this shelf, against twelve on the PROfezzion and two on the Hama. The same bullet claims the coating blocks ultraviolet light, raises contrast and eliminates light haze at sea or in high mountains
Frame thickness
NOT PUBLISHED as a figure: the fourth bullet calls it an extremely thin filter and leaves it there. The 8 € Hama publishes 3.4 mm and the 13 € PROfezzion 3 mm, so the one page here claiming thinness is the one that does not measure it
Material
Not named for the frame. The glass is specified and the ring is not
Front thread provision
Not mentioned
Stated transmission figure
NOT PUBLISHED — which is the odd gap on a page that counts eighteen coating layers. Layers exist to raise transmission, and the 13 € PROfezzion publishes the resulting figure at 99.5 per cent minimum
Amazon reference
B0C1YZBPRK (same reference on 6 Amazon marketplaces)
EAN
6942052514675

On the listing

Six bullets. Ideal for landscape photography thanks to excellent optical properties, with a note that new and old packaging are shipped at random; made from Japanese optical glass for first-class light transmission, improved optical clarity and colour fidelity, protecting the lens from dust, dirt and scratches; eighteen layers of green anti-reflective nano coating blocking ultraviolet light, raising the contrast of shots and eliminating light haze at sea or in high mountains; a reduction of chromatic aberrations in an extremely thin filter; a fit for all lenses with a 67 mm thread, naming Canon, Nikon, Sony, Samsung and Fuji; and a closing bullet stating that the brand is the world’s number one in lens-filter online sales volume among camera-accessory-focused brands, sourced to Euromonitor 2024 data.

Eighteen layers, counted

The highest count on this shelf, and the count is the specification. Twelve on the 13 € PROfezzion, two on the 8 € Hama, none published on the 9 € Amazon Basics. Layers are what keep a bright light from ghosting.

Japanese glass, named

Two filters here name their glass and two do not. It is not a measurement, but it is a provenance — and the page pairs it with transmission and colour fidelity.

Extremely thin, and unmeasured

The one page on this shelf that claims thinness is the one that gives no millimetres. Two others publish 3.4 mm and 3 mm without making the claim at all.

What a flat filter can and cannot do about fringing

It cannot correct what the lens produces — flat glass does not focus. It can avoid adding error of its own, and that is the defensible reading of the fourth bullet.

A sales rank, where a seventh figure would fit

Euromonitor 2024, properly cited, and about the market rather than the glass. A transmission percentage would have said more.

Availability

Between 11 € and 17 € on the German, French, Italian and Spanish Amazon stores when this page was last checked.

The American and British Amazon stores carry it too, priced in local currency. Those amounts are deliberately absent from the range above, which reads euro stores only.

Everything in this section is the figure Keepa carried on the day of the last update to this page. Availability and prices shift without notice.

Prices quoted in this text were read on 13 September 2026. The live price is at the top of the page.

More UV and protection filters

  • PROfezzion 67 mm UV filter in its slim aluminium frame beside its padded case

    PROfezzion 67 mm, 99.5 per cent transmission, 0.7 mm glass

    The only filter on this shelf that publishes what it passes — 99.5 per cent on twelve layers, through 0.7 mm of glass in a 3 mm frame, for 13 €.

    Thread size
    67 mm, in the title, which also names Canon R6 Mark III, II, 90D, 80D and 70D bodies. Naming bodies on a filter is loose — a filter fits a thread, not a camera — but it tells a buyer the size is the common one for those kits
    Glass
    Japanese optical glass, finely ground and polished, in the third bullet, with a hardness given as up to 9HD. The hardness notation is unusual and unexplained on the page; what it is reaching for is scratch resistance on the surface that gets wiped most
    Coating description
    TWELVE layers, multi-coated, in the second bullet, to prevent internal ghosting and reflections. Fewer than the eighteen claimed by the 11 € K&F here — and unlike that page, this one publishes the result the layers produce
    Frame thickness
    BOTH figures published, and this is the page that measures itself: the GLASS is 0.7 mm thick and the FRAME only 3 mm, in the fourth bullet, stated as minimising the likelihood of vignetting. Three millimetres is the thinnest frame on this shelf, against 3.4 mm on the Hama and nothing at all from the two others
    Material
    An aviation-grade aluminium alloy frame, in the third bullet — the only frame alloy named on this shelf
    Front thread provision
    Not mentioned, which on a 3 mm frame is worth noting: the thinner the ring, the less room for a front thread, and the page does not say whether a cap or hood still screws on
    Stated transmission figure
    PUBLISHED — an average light transmission of AT LEAST 99.5 PER CENT, in the second bullet, and the only such figure on this shelf. It is the number that makes the coating count meaningful: twelve layers passing 99.5 per cent is a measurable claim, where eighteen layers and no percentage is an assertion
    Amazon reference
    B09366T36S (same reference on 6 Amazon marketplaces)
    EAN
    6940202350425
    • Ninety-nine point five per cent transmission published — alone on this shelf
    • Both thicknesses published: 0.7 mm of glass in a 3 mm frame, the thinnest here
    • No front thread provision mentioned, on the thinnest frame here

    Best for: A 67 mm lens used at its widest, where a 3 mm frame and a measured transmission are worth 4 € over the cheapest lid on this shelf.

    ≈ $13 / £11 / 12 €
    Check price on Amazon
  • Amazon Basics 67 mm UV filter lying flat on a lens cap

    Amazon Basics 67 mm, no coating or thickness published

    Nine euros for a 67 mm protective lid whose five bullets describe what it is for four times over, and its construction not once.

    Thread size
    67 mm, in the title and the fourth bullet, which calls it compatible with a wide range of lenses. Sixty-seven millimetres is the thread of a great many standard zooms, and it is the size the buying advice above says to buy for and step down from
    Glass
    NOT SPECIFIED. No origin, no type, no grade — where the 11 € K&F and the 13 € PROfezzion on this shelf both name Japanese optical glass and the 8 € Hama names optical glass in a black metal frame
    Coating description
    NONE, and this is the specification whose absence costs most. An uncoated filter reflects light between its surfaces and the lens, which lowers contrast and can throw a ghost of a bright source into the frame. The hub above is blunt about it: an uncoated filter in front of a good lens is a downgrade you pay for. The other three filters here publish 2, 12 and 18 layers
    Frame thickness
    Not published. The 8 € Hama gives 3.4 mm and the 13 € PROfezzion 3 mm; on a 67 mm filter destined for a standard zoom, thickness is what decides whether the corners darken at the wide end
    Material
    Not named. Neither the frame metal nor the glass is described anywhere in five bullets
    Front thread provision
    Not mentioned. Whether a hood, a cap or a second filter screws onto the front is left unstated — the 8 € Hama names all three
    Stated transmission figure
    Not published
    Amazon reference
    B00XNMX4EG (same reference on 6 Amazon marketplaces)
    EAN
    0848719099393
    • Sixty-seven millimetres, the thread the buying advice above says to standardise on
    • Nine euros, the cheapest 67 mm lid on this shelf
    • No coating described at all, on glass that sits in front of every photograph

    Best for: A lens that lives in a bag with sand and keys, where a 9 € replaceable lid is the point and image quality is carried by the hood instead.

    ≈ $9 / £9 / 9 €
    Check price on Amazon
  • Hama 49 mm UV filter in its black metal frame beside its plastic box

    Hama 49 mm, one coating layer per side, 3.4 mm frame

    Eight euros for a 49 mm colour-neutral UV filter with one coating per side, a 3.4 mm metal frame and a box — and a front thread that still takes a hood or a cap.

    Thread size
    49 mm, in the title — the smallest on this shelf, where the three others are 67 mm. Forty-nine millimetres is the thread of small primes and older kit lenses, and the buying advice above prefers the largest thread in the bag with step rings below it. This is the filter bought for one small lens
    Glass
    Optical glass in a black metal frame, in the third bullet, described as colour-neutral. No glass origin is named, where the 11 € K&F and the 13 € PROfezzion both claim Japanese optical glass
    Coating description
    COUNTED, and precisely: one coating layer on EACH SIDE — a two-fold coating, as the title has it. That is the lowest count on this shelf, against twelve layers on the PROfezzion and eighteen on the K&F, and it is stated plainly rather than dressed up
    Frame thickness
    3.4 mm, in the fifth bullet, described as a flat mount. Only two pages on this shelf publish a frame figure; the PROfezzion is 3 mm and the two others publish none. Thickness is what decides whether a wide lens sees the ring
    Material
    A black metal frame around a glass lens, in the third bullet. Black inside the frame is what stops light bouncing between filter and lens, and the colour is worth the mention
    Front thread provision
    YES, and it is the only page here that spells out what the front thread is for: the fourth bullet says further filters, a lens hood or a lens cap screw straight on. A filter without a front thread ends the stack; this one does not
    Stated transmission figure
    NOT PUBLISHED. The 13 € PROfezzion is the only filter on this shelf to give one, at 99.5 per cent minimum. With one coating layer per side, the loss here will be larger, and the page does not say by how much
    Amazon reference
    B00006JEAY (same reference on 6 Amazon marketplaces)
    EAN
    4007249700490
    • A published 3.4 mm frame and a counted coating — one layer per side
    • A front thread stated to take another filter, a hood or a cap
    • One coating layer per side, against twelve and eighteen elsewhere on this shelf

    Best for: A small 49 mm prime or an older kit lens that needs a lid over the front element, where a hood or a second filter still has to go on top.

    ≈ £7 / 8 €
    Check price on Amazon

Elsewhere in the camera bag

  • DJI Osmo Action dual-direction battery grip with its charging port cover

    DJI 4900 mAh, 207 g, −20 to 45 °C, Osmo Action 6

    Eighty-four euros for a grip that publishes its dimensions, its 207 g, its voltages and two temperature ranges — and gives two different capacities.

    Bodies named
    ONE: the Osmo Action 6, in the second bullet. A single named camera, which for an action camera accessory is the honest form — the mounting and the port position change between generations
    Cells carried and reporting
    TWO DIFFERENT FIGURES ON ONE PAGE: the first bullet says a built-in 4900 mAh battery, and the third gives a storage capacity of 5000 mAh. A hundred milliamp-hours apart, neither reconciled. What IS consistent is the electrical detail — 3.6 V nominal, USB input at 3.6 V, USB output at 5 V and 1.5 A — which is more than any other grip here publishes
    Duplicated controls
    NONE — a power grip, like three others on this shelf
    Sealing claims
    PARTIAL, AND CONDITIONAL — and the fourth bullet is unusually careful: after removing the camera’s USB-C port cover, the charging-port cover must be installed TO MAINTAIN splash resistance. In other words, fitting the grip breaks the camera’s seal unless a supplied part is put back. That is a real instruction, and the only sealing statement on this shelf
    Tripod thread position
    Not mentioned, which on a 181 mm handle is a genuine omission
    Published weight
    207 g, in the third bullet, alongside DIMENSIONS of 37.8 by 44.2 by 181 mm. It is the only grip on this shelf to publish both — and 181 mm of length is what makes it a handle rather than a pack
    Amazon reference
    B0FM3WMZ6Z (same reference on 6 Amazon marketplaces)
    EAN
    0190021153141
    • Dimensions, weight, three voltages and two temperature ranges all published
    • A splash-proof charging cover supplied, with the instruction to fit it
    • Four thousand nine hundred mAh in one bullet, 5000 in another

    Best for: An Osmo Action 6 filming in the cold, where an operating range down to −20 °C and a published weight decide the rig.

    ≈ $129 / £83 / 84 €
    Check price on Amazon
  • K&F Concept battery grip handle attached to a DJI Osmo Pocket

    K&F CONCEPT 5000 mAh power handle, 110 g, quarter-inch thread

    Twenty-five euros for a 110 g handle carrying 5000 mAh for an Osmo Pocket, with a quarter-inch thread and a USB port that takes a microphone.

    Bodies named
    Three, in the second bullet: the DJI Osmo Pocket 3, 4 and 4P — the 4 Pro. The claim worth noting is the second half: a stable fit with no wobble and, in its own words, no pop-up windows — which is the firmware warning a non-standard accessory produces. This catalogue sells the Osmo Pocket 4 on its gimbal shelf
    Cells carried and reporting
    5000 mAh built in, in the first bullet, with a FOUR-STAGE LED gauge in the fourth. The gauge has a considered detail: it does not light while a device is connected and shooting, so it cannot appear in the frame or distract in the dark
    Duplicated controls
    NONE, and this is the distinction the shelf above has to make. A vertical grip for a reflex duplicates the shutter release and the command dials for portrait-format work; a power handle carries a battery and nothing else. Two of the six grips here duplicate controls; four, including this one, do not
    Sealing claims
    None
    Tripod thread position
    A quarter-inch thread, in the third bullet, named for tripods, extension poles, selfie sticks, PeaPods and clamps. On a pocket gimbal that is the whole point of a handle: it turns a hand-held camera into something mountable
    Published weight
    110 g, in the fifth bullet, described as light and compact and said to match the Pocket 3 and 4 visually. It is one of three weights published on this shelf
    Amazon reference
    B0GYDMPQPZ (same reference on 6 Amazon marketplaces)
    EAN
    6942610304519
    • Five thousand milliamp-hours in 110 g, with a quarter-inch thread
    • A USB port that takes an external microphone as well as data
    • It duplicates no controls, so it is a battery rather than a grip

    Best for: An Osmo Pocket 3 or 4 filming long takes, where the run time and a tripod thread matter more than any duplicated control.

    ≈ $30 / £30 / 25 €
    Check price on Amazon
  • Besnfoto canvas camera shoulder bag with its flap open showing the foam interior

    Besnfoto Shoulder bag, 17.8 by 13 by 15 cm inside, 16A canvas

    A canvas shoulder bag with its interior published to the millimetre — 17.8 by 8.9 by 13 cm — for one mirrorless body and a lens, at 25 €.

    Internal dimensions
    PUBLISHED, and in both directions: an interior of 7.0 by 3.5 by 5.1 inches — about 17.8 by 8.9 by 13 cm — inside an exterior of 7.4 by 4.3 by 5.9 inches, in the first bullet. Publishing both is what lets a buyer work out how much of the bag is padding, and here it is roughly a centimetre a side
    Volume
    Not published. The interior figures give about 2 litres, and the page leaves the arithmetic alone. What the first bullet does instead is name what fits: a mirrorless camera and lens, a compact digital camera, or a small camera with a prime or zoom
    Access design
    A waterproof DUCK-BILL ZIP into the camera compartment, in the third bullet, plus a hinged cover — and the same bullet notes the flap and zip stop the camera falling out and that the zip need not even be closed in use. A bag that can be left unzipped safely is a bag that gets opened one-handed
    Divider system
    NONE itemised. The third bullet says the bag is filled throughout with PE foam so nothing rattles in the compact interior — which is protection without partitioning. For one body and one lens that is sufficient; for two lenses it is not
    Laptop sleeve size
    NONE. At 17.8 cm across the interior, nothing larger than a phone fits, and the first bullet puts the phone in the front pocket
    Tripod carry
    NONE
    Weather protection
    WATERPROOF 16A CANVAS, in the second bullet, described as durable and waterproof and credited with protecting the camera from unexpected weather. Canvas is heavier than nylon and takes a knock better; 16A is a yarn weight rather than a coating standard
    Empty weight
    Not published — as on three of the four bags on this shelf
    Amazon reference
    B07SG271TT (same reference on 6 Amazon marketplaces)
    EAN
    0756557822823
    • Internal AND external dimensions published, so the padding can be worked out
    • A waterproof duck-bill zip and a flap that works unzipped
    • A shoulder bag on a shelf called backpacks — it holds one body and one lens

    Best for: One mirrorless body with a lens fitted, carried on a commute or a short walk rather than a day’s hike.

    ≈ $22 / £22 / 25 €
    Check price on Amazon

All UV and protection filters