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Sealed, heat-repellent, and no lens named

Canon 1.4× for RF, three-layer combination lens

Four hundred and seventy-nine euros for a 1.4× extender sealed against dust, splashes and heat, with a three-layer combination lens — and six bullets that name no lens.

Canon Extender RF 1.4x in light grey with its two caps and pouch

Canon 1.4× for RF, three-layer combination lens

Four hundred and seventy-nine euros for a 1.4× extender sealed against dust, splashes and heat, with a three-layer combination lens — and six bullets that name no lens.

Magnification
1.4×, in the first bullet, named for press, nature and sports photographers. One stop, by the arithmetic in the intro above — which this page does not state
Lenses named as compatible
NONE. Six bullets, and the compatibility statement is that the lens design is optimised for the RF mount. The intro above insists that a converter is sold with an explicit list precisely because it protrudes, and the 169 € Viltrox on this shelf names five lenses with the word "only". At 479 €, this is the most expensive silence on the shelf
Light loss in stops
Not published. One stop for a 1.4×: an f/2.8 lens works at f/4, an f/4 at f/5.6. The page never mentions it
Autofocus limits stated
Not stated, and autofocus is not mentioned in any of the six bullets — on a device sold to press and sports photographers, for whom focus is the whole purchase
Added length
Not published, where the 323 € OM SYSTEM publishes 15 mm
Sealing
The fullest claim on this shelf: dust and splash protection AND a heat-repellent coating, in the third bullet, described as ready for extreme situations. Heat resistance appears on no other page here, and it belongs to a converter that will sit on a white telephoto in the sun
Published weight
Not published, as on all six converters here
Amazon reference
B08CNFXJR9 (same reference on 6 Amazon marketplaces)
EAN
4549292168044
  • Dust and splash protection plus a heat-repellent coating, the only heat claim on this shelf
  • A three-layer combination lens and high-refractive low-dispersion glass, both named
  • Not one compatible RF lens named, in six bullets, at 479 €

Best for: An RF telephoto already confirmed to accept it, used in heat and weather where the sealing and the coating earn their price.

≈ $553 / £519 / 479 €
Check price on Amazon

Specifications

Magnification
1.4×, in the first bullet, named for press, nature and sports photographers. One stop, by the arithmetic in the intro above — which this page does not state
Lenses named as compatible
NONE. Six bullets, and the compatibility statement is that the lens design is optimised for the RF mount. The intro above insists that a converter is sold with an explicit list precisely because it protrudes, and the 169 € Viltrox on this shelf names five lenses with the word "only". At 479 €, this is the most expensive silence on the shelf
Light loss in stops
Not published. One stop for a 1.4×: an f/2.8 lens works at f/4, an f/4 at f/5.6. The page never mentions it
Autofocus limits stated
Not stated, and autofocus is not mentioned in any of the six bullets — on a device sold to press and sports photographers, for whom focus is the whole purchase
Added length
Not published, where the 323 € OM SYSTEM publishes 15 mm
Sealing
The fullest claim on this shelf: dust and splash protection AND a heat-repellent coating, in the third bullet, described as ready for extreme situations. Heat resistance appears on no other page here, and it belongs to a converter that will sit on a white telephoto in the sun
Published weight
Not published, as on all six converters here
Amazon reference
B08CNFXJR9 (same reference on 6 Amazon marketplaces)
EAN
4549292168044

On the listing

Six bullets. More reach, extending the focal range by 1.4× and named ideal for press, nature and sports photographers; a considered design with lens coatings and a three-layer combination lens to reduce ghost images, optimised for the RF mount; uncompromising readiness even in extreme situations through dust and splash protection and a heat-repellent coating; excellent quality from advanced high-refractive, low-dispersion glass, called the right choice for enthusiasts and professionals; a contents list of the Extender RF 1.4x, an extender cap RF, a lens cap RF, an LP811 lens pouch and instructions; and a closing bullet inviting the reader to scroll to the product guides section and open the brochure PDF for a list of retailers and locations offering demonstrations.

Dust, splashes, and heat

The only heat claim on this shelf. A pale telephoto is pale because heat moves glass, and a converter bolted into the middle of one has the same problem to solve.

Three layers cemented into one element

Every air gap between elements is two more surfaces for stray light to bounce off. Combining three into one assembly removes the gaps and the ghosts with them.

Four hundred and seventy-nine euros, and no lens named

Six bullets, one mount, no list. The 169 € Viltrox names five lenses and the word “only”. The intro above explains why that list is the specification and not a courtesy.

One stop, absent from the page

A 1.4× costs one stop: f/2.8 becomes f/4. The buying advice on this shelf says to work it out before buying, which here is the only way it will be worked out.

A sixth bullet about a brochure

Where a compatibility list would sit, a pointer to a PDF of retailers offering in-store demonstrations.

Availability

Between 479 € and 574 € 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 teleconverters

  • Fujifilm TCL-X100 II silver teleconverter beside an X100 camera

    Fujifilm 1.4×, to 50 mm equivalent, for four X100 bodies

    Two hundred and thirty-nine euros for a 1.4× converter that takes the X100 series to a 50 mm equivalent — five short bullets, four named cameras, and no element count.

    Magnification
    1.4×, in the first bullet, given as extending the focal length to 50 mm in full-frame equivalent. The arithmetic is visible: 1.4 times a 35 mm equivalent is 49, and the page rounds it to 50 — which also tells the reader what lens is underneath
    Lenses named as compatible
    FOUR CAMERAS, not lenses: the X100, X100S, X100T and X100F, in the second bullet. It is the only page on this shelf whose compatibility list is made of bodies, and that makes it the easiest to check and the narrowest to satisfy
    Light loss in stops
    NOT PUBLISHED. The intro above gives one stop as the price of a 1.4× sitting between a lens and a body; this converter is sold for four cameras whose lens does not come off, and the page states no figure at all. Nothing here confirms or denies a loss
    Autofocus limits stated
    None. No aperture, no focus claim, no caveat — in five bullets, two of which are "silver" and a contents list
    Added length
    Not published
    Sealing
    Not claimed. The 323 € OM SYSTEM, the 349 € Sigma and the 479 € Canon here all claim dust and splash protection
    Published weight
    Not published, as on all six converters here
    Amazon reference
    B01MUCB83B (same reference on 6 Amazon marketplaces)
    EAN
    4547410339079
    • Four compatible cameras named outright, in a market where lists are usually absent
    • The result is published as a focal length — 50 mm equivalent — not only as a factor
    • Five bullets, of which one is the word "silver" and one a two-line contents list

    Best for: An X100, X100S, X100T or X100F used for portraits, where 35 mm is too wide and a second camera is not the answer.

    ≈ $239 / £211 / 239 €
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  • NEEWER teleconverter clipped magnetically to the front of a DJI Osmo Pocket

    NEEWER For DJI Osmo Pocket 3 and 4, magnetic

    Sixty-four euros for a magnetic converter that clips to an Osmo Pocket 3 or 4 — and whose only published magnification is the 2× digital zoom already in the camera.

    Magnification
    NOT PUBLISHED for the converter itself. The second bullet says a higher magnification factor is reached by using the camera’s 2× DIGITAL zoom, which is a function of the camera and not of this glass. Every other page on this shelf leads with a factor — 1.4× or 2× — and this one leads with the camera’s crop
    Lenses named as compatible
    No lenses: two cameras. The first bullet says it is compatible only with the DJI Osmo Pocket 4 and Pocket 3, and the title says the same. This catalogue carries the Osmo Pocket 4 on its gimbal shelf, so the narrowest compatibility statement on this shelf is also the easiest to check
    Light loss in stops
    Not published. The intro above gives the arithmetic for converters that sit between a lens and a body — one stop for a 1.4×, two for a 2× — and this one attaches magnetically to the front of a fixed-lens camera, where that arithmetic does not apply. The page gives no figure either way
    Autofocus limits stated
    None. On a camera whose lens and body are one piece there is no aperture for the converter to reduce, and the page makes no claim about focus at all
    Added length
    Not published. The fourth bullet calls the lens light and slim and gives no millimetres — and on a pocket gimbal, length is exactly what decides whether it still fits in a pocket
    Sealing
    Not claimed as sealing. The third bullet describes multiple coatings that resist water, scratches and fingerprints, which protects the glass rather than the joint. Three converters on this shelf claim dust and splash protection; this is not one of them
    Published weight
    Not published — and not one of the six converters on this shelf publishes a weight, though the intro above asks for it
    Amazon reference
    B0G1RSMHRV (same reference on 6 Amazon marketplaces)
    EAN
    0191073127913
    • Four elements in three groups, multi-coated against water, scratches and fingerprints
    • A magnetic mount, so nothing is threaded onto a gimbal-mounted lens
    • No optical magnification figure anywhere on the page

    Best for: An Osmo Pocket 3 or 4 used for interviews and distant subjects, where a longer view is wanted without cropping into the sensor.

    ≈ $86 / £53 / 56 €
    Check price on Amazon
  • OM System MC-14 teleconverter showing its slim housing and metal bayonet

    OM SYSTEM 1.4×, 15 mm of housing height

    Fifteen millimetres thick, sealed on a metal bayonet, 1.4× for M.Zuiko PRO telephotos — the only converter on this shelf that publishes how much it adds.

    Magnification
    1.4×, in the first bullet, named for sport, nature and wildlife photography. The intro above gives the cost of a 1.4× as one stop; the page does not repeat it
    Lenses named as compatible
    In the TITLE only — the M.Zuiko ED 40-150 mm and 300 mm PRO — and in none of the five bullets, which say merely "your compatible lenses". The intro above explains why the list matters more than the mount: a converter protrudes, and an unlisted lens can meet it with its rear element
    Light loss in stops
    Not published. Only the 169 € Viltrox on this shelf states the figure, and it states two stops for a 2×. A 1.4× costs one, by the arithmetic in the intro above, and this page leaves the reader to apply it
    Autofocus limits stated
    No limit, and a claim: the fifth bullet promises fast autofocus and stable handheld telephoto shots, with clear images at longer shutter speeds without a tripod. The buying advice on this shelf asks for the minimum aperture the body’s autofocus is specified to, and no page here supplies it
    Added length
    PUBLISHED: 15 mm of housing height, in the third bullet, described as particularly slim and said to fit in any camera bag. It is the only dimension published anywhere on this shelf, and it is the figure that decides whether the converter lives in the bag or gets left at home
    Sealing
    Dust- and splash-protected with a high-grade METAL BAYONET, in the second bullet, named for use in any weather and for travel in the open. The intro above asks whether sealing carries across the joint, and a sealed converter between a sealed lens and a sealed body is what keeps the chain intact
    Published weight
    Not published, as on all six converters here — on the one page that publishes a thickness
    Amazon reference
    B0FS25M28G (same reference on 6 Amazon marketplaces)
    EAN
    4545350054458
    • Fifteen millimetres of housing height, the only dimension published on this shelf
    • Dust and splash protection on a metal bayonet, so the sealed chain is not broken
    • The compatible lenses appear in the title and in none of the bullets

    Best for: An M.Zuiko PRO telephoto used outdoors in bad weather, where 15 mm in the bag and a sealed joint both matter.

    ≈ $222 / £228 / 278 €
    Check price on Amazon

Elsewhere in the camera bag

  • Manfrotto 410 Junior geared head with its three adjustment knobs and levelling bubble

    Manfrotto 410 Junior geared head, 5 kg, 1.22 kg

    A geared head at 229 € — the only one here adjusted by turning knobs rather than releasing a ball — carrying 5 kg and weighing 1.22 kg, six times the 205 g K&F beside it.

    Head type
    A geared head, and it is the only one in this catalogue. The first bullet claims extreme precision control in three directions from the gearing and the bubble level. The hub above describes a three-way head as separating the axes so one can be adjusted without disturbing the others; a geared head goes further — each axis is driven by a worm gear, so it moves by fractions of a degree and cannot slump when released
    Declared load
    5 kg, in the fifth bullet, alongside the weight of 1.22 kg. It is the smallest rating of the three heads here — a third of the NEEWER’s 15 kg — and it is the one figure that sits within reach of the tripods next door, which top out at 6.35 kg
    Plate standard
    The Manfrotto 410 plate, named in the third bullet as supplied. It is a proprietary profile, which the hub above warns commits every future clamp to the same maker. That is the cost of this head: the plates are not the dovetail most third-party gear is cut for
    Mounting thread
    Not published. Five bullets describe the gearing, the locking, the plate, the format range and the weight, and no thread size appears — so whether it takes 3/8 inch alone or both is unknown before it arrives
    Panning base and markings
    Not described as a separate base. The first bullet claims precision in three directions and the gearing implies markings on each axis, but no scale and no independent panning foot is named. On a head sold for precision that is a surprising silence
    Locking and friction controls
    A locking system named in the second bullet as allowing fast and secure movement between shots. On a geared head the gear itself is the friction — nothing is released and re-caught, which is precisely why architectural and product photographers buy them
    Published weight
    1.22 kg, in the fifth bullet. It is six times the K&F on this shelf and nearly four times the NEEWER, and it is the honest price of gearing: three worm drives and their housings weigh what they weigh
    Amazon reference
    B000JLI4Q2 (same reference on 6 Amazon marketplaces)
    EAN
    0719821156376
    • Geared adjustment on three axes, the only head in this catalogue that moves by fractions of a degree
    • Nothing slumps when a control is released, which is what makes a framing repeatable
    • A proprietary plate profile, which ties every future clamp to one maker

    Best for: Architecture, product and copy work on a solid tripod, where a framing has to be adjusted by millimetres and held exactly.

    ≈ $219 / £229 / 229 €
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  • NEEWER GM36 low-profile ball head with its Arca plate and panning scale

    NEEWER GM36 low-profile ball head, 15 kg, Arca 38 mm

    Fifteen kilograms declared and the only Arca-compatible plate named on this shelf, on a low-profile ball head weighing 310 g at 43 €.

    Head type
    A low-profile ball head with a 36 mm ball, in the title and the first bullet, which gives the reason for the shape: a lower centre of gravity makes the head more stable. The third bullet adds 360 degrees of pan and 90 of tilt in a U-shaped notch — the cutout that lets a camera drop into portrait orientation
    Declared load
    33 lb, 15 kg, in the first bullet — the largest figure on this shelf and more than twice what any tripod in this catalogue declares. The hub above says the lower of the head and legs governs, so this head will never be the limiting part of any assembly built from these pages
    Plate standard
    Arca-compatible, 38 mm, named explicitly in the second bullet with a 1/4 inch fixing screw and rubber pads to protect the camera. It is the ONLY page of the three here to name a profile, and the hub above says to read the plate before the load figure precisely because an Arca dovetail joins what most bags already contain
    Mounting thread
    A 3/8 inch thread below with a 3/8 to 1/4 inch screw adapter supplied, in the first bullet, said to fit most tripods, monopods and sliders. Supplying the adapter matters: it is the small brass ring that otherwise lives at the bottom of a bag until it is lost
    Panning base and markings
    A separate panning foot with a 360 degree scale, in the third bullet, credited with precise and smooth panoramic work, plus a bubble level for keeping the horizon straight. A panning base independent of the ball is what lets a level pan stay level — the K&F below it describes no such base
    Locking and friction controls
    Three locking knobs, in the fifth bullet: release them to set the ball freely, turn the camera gently for a panorama, release the plate. No separate friction adjustment is named, so the ball either holds or moves
    Published weight
    310 g, in the fourth bullet, with CNC-milled aluminium alloy named as the material. Half again the weight of the K&F, for half again the declared load
    Amazon reference
    B0B8CKD3TN (same reference on 6 Amazon marketplaces)
    EAN
    0191073122574
    • A 38 mm Arca-compatible plate, the only named profile on this shelf
    • Fifteen kilograms declared, more than twice what any tripod in this catalogue carries
    • No friction control, so the ball holds or releases with nothing in between

    Best for: Any tripod, monopod or slider in this catalogue, for a photographer who already owns Arca-profile plates and wants the head to stop being the limit.

    ≈ $36 / £38 / 43 €
    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

All teleconverters