Canon launches the World’s Lightest Super-Telephoto Lens[1]
    EF 400mm f/2.8L IS III USM with Exceptional Image Quality and Mobility
    HONG KONG, 18 December 2018 - Canon announces the new EF 400mm f/2.8L IS III USM large-aperture super-telephoto lens is now available for sale. In response to the demand of a lighter lens from all super-telephoto lens users, this lens has been completely redesigned in both optical and mechanical structure to achieve the world’s lightest 400mm f/2.8 lens[1]  which weights only 2,840g, over 25% (1,010g) weight reduction compared to the previous model. The EF 400mm f/2.8L IS III USM features 2 fluorite and 1 Super UD lens elements as well as ASC anti-reflection technology to deliver superb image quality. The f/2.8 large aperture also unleashes the fastest and highest precision AF performances of professional EOS DSLR cameras. The optical image stabilizer has also been improved to provide shake compensation up to 5-stop shutter speed[2] with IS Mode 1/2/3 available to facilitate handheld shooting. With the new Electronic Focusing Ring design and newly added “Manual Focus Speed Switch”, the lens now allows photographers to  select a desirable manual focusing speed to fine tune the focus position exactly the way they want. EF 400mm f/2.8L IS III USM is also the first EF lens that provides two focus presets to allow photographers to quickly focus on 2 separate pre-determined shooting distances by simply turning the Playback in different directions. To improve the comfortability when using in high temperature, a new heat shield coating with higher reflectivity to infrared rays in sunlight as well as a new two-layered exterior structure that can inhibit heat conductivity are applied to reduce the rise of the lens temperature. Dust-and-water-resistance design and Fluorine coating are also incorporated to withstand the most challenging environment.
    Furthermore, a range of new accessories including the bundled new Lens Soft Case LS400 and an optional Lens Short Hood ET-155B are also introduced to enhance the handling and shooting experience. With all of these improvements, this world’s lightest 400mm f/2.8 lens is ideal for professional sports photographers and advanced amateurs to capture masterful shots of stunning moments in sports events and car racing more comfortably and with peace of mind.
    EF 400mm f/2.8L IS III USM Super-telephoto Lens
    The World’s Lightest 400mm f/2.8 Lens by Redesigning Optical and Mechanical Structures with Leading Optical Technology
    The new EF 400mm f/2.8L IS III USM has a completely redesigned optical and mechanical structures to significantly reduce 25% of weight (1,010g) compared to the previous model and becomes the World’s Lightest[1] 400mm f/2.8 lens. The entire optical system was carefully reviewed and redesigned, two fluorite and one Super UD lens elements along with a new glass material are featured to make it possible to place the optical system after the second lens group in the rear for a more lightweight optical design.
    Optical design with rear placement of lens elements
    In terms of the mechanical structure, the use of electronic focusing ring, lighter lens barrel material and lightweight IS unit have further reduced the weight of this lens.  The EF 400mm f/2.8L IS III USM newly incorporates an electronic focusing ring. With the electronic focusing ring, it eliminates the need for mechanically-linked mechanisms to drive the focus group and offers the freedom to design a more lightweight structure. The barrel structure has been simplified from a 4-component to a 2-component configuration; Thinner lens barrel with the same rigidity as the previous models is possible by aggressively use of carbon reinforced magnesium alloy to further reduce the overall weight. Professionals and advanced photographers now can enjoy this new super-telephoto lens with greatly improved portability, flexibility and expanded photographic opportunities.
    EF 400mm f/2.8L lens series are highly popular among professional sports photographers
    This world’s lightest 400mm f/2.8 lens
    offers improved portability
    Superior Image Quality that can meet the professional needs
    As a flagship model in EF Lens system, EF 400mm f/2.8L IS III USM delivers exceptional image quality to meet demands from professional photographers. 400mm f/2.8 lens is commonly used for international sports events that photographers can bring immediacy to shots of athletes and their expression which are generally difficult to photograph from a close distance.
    The lens adopts a 17 elements in 13 groups optical design. It incorporates 2 fluorite and 1 Super UD lens elements to minimize chromatic aberration and achieve high resolution and contrast across the entire frame of the images. The new glass material of the first lens element also effectively suppresses spherical and chromatic aberrations. 
    To minimize flare and ghosting, EF 400mm f/2.8L IS III features Canon’s ASC (Air Sphere Coating) anti-reflection technology. ASC is a combination of the conventional vapor-deposited multi-layer coatings with an ultra-low refractive index outermost layer. The ultra-low refractive index layer is a film consisting of silicon dioxide and a certain percentage of air. The resulting structural refractive index provides an ultra-low refractive index significantly lower than that of the existing vapor-deposited coatings. This can effectively reduce ghosting and flare that cannot be prevented with conventional vapor-deposited multi-layer coatings. ASC has excellent anti-reflective effects particularly with respect to incident light that enters vertically. The result is significant suppression of flare and ghosting in backlit environment at a level not possible with ordinary coating. It helps to provide cleaner photographs with fewer distracting reflective effects in the image.
    The minimum focusing distance of EF 400mm f/2.8L IS III USM has been shortened to 2.5m with the same magnification of 0.17x comparing to its predecessor.
    The Advantages of f/2.8 Large Aperture and 5-Stop[2] Optical Image Stabilization 
    The EF 400mm f/2.8L IS III USM features a bright aperture of f/2.8 which enables the photographers to possess the flexibility in setting the shutter speed or ISO sensitivity especially when light is limited. It also emphasizes pin-sharp subjects against a silky smooth, out-of-focus background together with the lens 9-blade circular aperture. What’s more the f/2.8 aperture plays an important role in AF performance of professional EOS DSLR cameras such as the EOS-1D X Mark II and EOS 5D mark IV. It allows a large amount of light entering the AF sensor of EOS DSLR cameras, unleashing the fastest and the highest precision AF performance from their f/2.8-sensitive AF points. Hence, the EF 400mm f/2.8L lenses are always highly recommended by sport photographers who are always required to shoot with fast and precise AF.
    The EF 400mm f/2.8L IS III USM uses a rear focus system and Ring-type USM (Ultrasonic Motor) with a new microprocessor which uses high performance CPU and newly-developed firmware to achieve high-speed, highly-accurate, smooth and silent autofocus for both photo and video shooting.
    In addition to large aperture, Image stabilization (IS) also plays a crucial part in super telephoto photography. The EF 400mm f/2.8L IS III USM features an optical image stabilizer that provides shake compensation up to 5-stop shutter speed [2]. With the significant weight reduction, more comfortable handheld shooting facilitated by the Image Stabilizer becomes possible with this lens.
    [IS ON] Sharp images can be easily achieved by the image stabilization with 5-stop[2] shake compensation
    [IS OFF] Image is blurry and results loss of details due to camera shakes.
    The Optical Image Stabilizer of EF 400mm f/2.8L IS III USM features three IS Modes to provide different shake compensation mechanisms for different scenarios. In addition to IS Mode 1 for normal shooting and IS Mode 2 for panning, IS Mode 3 is designed for sports photographers. Among these modes, IS Mode 3 is specially catered for capturing dynamic subjects with random movement, such as football players whose moving direction and speed are random. When the shutter release button is half-pressed in IS Mode 3, the IS compensation lens will be locked electrically at the center of the optical axis, image in the viewfinder moves more naturally without backlashes, while shake compensation keeps being calculated. Only when the shutter release button is fully pressed, the IS lens will be activated immediately and uses the data calculated to provide shake compensation during exposure.
    Customizable Manual Focusing Speed by the New Electronic Focusing Ring
    Compared to mechanical focus ring in previous models, the EF 400mm f/2.8L IS III USM employs an Electronic Focusing Ring design. The use of an electronic mechanism for the focusing ring allows focusing lens drive to be controlled electrically and the lens now allows photographers to change the manual focusing speed (the amount of focus shift per unit rotation angle) in order to accommodate a diverse range of photographic needs during manual focusing (MF). Manual focus drive using the conventional mechanical linkage results in a large amount of focus shift per unit rotation angle, sometimes making it difficult to fine tune the focus position especially when using a magnified display in Live View shooting. As a result, the advancement to an electronic focusing ring and the inclusion of a new “Manual Focus Speed Switch” offer three levels of manual focus speed selection (Focusing speed is fastest when set to 1) for photographers who need more flexible focus control. . The lens is also equipped with a Full-Time Manual Focus function which can seamlessly switch from autofocus to manual focus. Photographers can fine tune the focus exactly the way they want.


    Three levels of manual focusing speed are available to select


    In addition, EF 400mm f/2.8L IS III USM is the first EF lens that provides up to two focus presets. Focus preset allows photographers to quickly focus on a pre-determined distance which is particularly useful when the shooting distance and angle are determined in advance, such as sports photography. With two Focus Presets available, photographers can now quickly focus on 2 separate preset shooting distances by simply turning the Playback Ring left or right (Focus Presets can be set to each rotation direction respectively). For instances, photographers can quickly switch the focus position for an athlete at the starting point and finish point in a running competition.

    Power Focus (PF) mode is also equipped to provide professional and smooth focusing effect during video recording. By turning the Focus Playback Ring, manual focusing will be operated smoothly by the built-in USM (Ultrasonic Motor). The focusing speed can be operated at low or high speed, depending on how much the Focus Playback Ring is turned.
    New Heat Shield Coating to Ensure Comfortable Use in High Temperature Conditions
    A new heat shield white-colored coating developed by Canon is applied to the new EF 400mm f/2.8L IS III USM to reduce the rise of the lens temperature by increasing the reflectivity for infrared rays in sunlight. Compared to previous super-telephoto lens models, this highly reflective heat shield coating prevents the lens barrel from becoming hot while keeping it cooler and comfortable to use when shooting for long period of time under strong sunlight.  The new lens hood ET-155 (WIII) also features this new heat shield coating to reduce temperature rises of the hood interior to achieve stable focusing under hot sun conditions.
    In addition, a new lens barrel design is also employed to inhibit heat conductivity. A two-layered exterior and retaining barrel construction with optimized contact points can reduce the transfer of heat from exterior to the interior of the lens in high temperature by minimizing the heat conduction channels. The new heat shield coating and lens barrel design allows photographers to enjoy comfortable shooting experience even under hot sun condition.


    A two-layered exterior and retaining barrel construction with optimized contact points
    Unbeatable Durability Designed to Withstand the Most Challenging Environment
    EF 400mm f/2.8L IS III USM inherits the same level of durability and rugged construction as found on its predecessor while achieving a significant weight reduction. The mechanism of the lens barrel is also reworked to ensure vibrational shock resistance and durability are the same as the latest L-series lenses.  This lens features the dust-and-water-resistant design[3] to provide the durability that satisfies the strict demand of professional users, making it ideal for wildlife photographers working in outdoor environments, or sports photographers on the sideline grabbing action shots of the big game. Fluorine coatings are applied on the foremost and rearmost lens surfaces to repel dust particles and water droplets. It also makes smears and fingerprints easy to remove without the use of lens cleaning fluid. A security slot is installed under the cap of the tripod mount lock nut for attaching a notebook wire-type security lock as an anti-theft precaution. The lens can be securely locked when photographer is away from the workplace.
    New Accessories for Improved Handling
    A range of new accessories have also been introduced to enhance the shooting experience, including the bundled new Lens Soft Case LS400. This lightweight and easy handling shoulder-type soft case is at a size within the airline carry-on luggage standard and protects the lens during travel effectively. It also includes storage pockets for filters and accessories making the lens incredibly mobile. Alternatively, an optional Lens Case 400E is also available to protect lens from external shocks during transportation.
    New Lens Soft Case LS400 (Bundled)
    Lens Case 400E (sold separately)
    Apart from the bundled Lens Hood ET-155 (WIII), a new optional Lens Short Hood ET-155B with the same heat shield coating is also launched. In situations where space is limited, users can attach this short hood for better handling. The bundled new Lens Cap E-180E is also redesigned to allow photographers to use it whether the lens hood is attached or not. For photographers wish to have a compact base plate for the tripod mount, an optional monopod mount is also available at Canon’s Care Center (chargeable service). This lens now includes a Drop-in Screw Filter Holder 52 (WIII) with 52mm protect filter, user can also choose the new optional Drop-in Circular Polarizing Filter 52 (WIII) or Drop-in Gelatin Filter Holder 52 (WIII) when necessary. In addition, the lens’ focal length can be extended instantly with the Extender EF 1.4x III or EF 2x III (both sold separately) to further expand the shooting possibility.  


    The lens with Lens Hood ET-155 (WIII) attached
    The lens with Short Lens Hood ET-155B (sold separately) attached


    The new Canon EF 400mm f/2.8L IS III USM professional telephoto zoom lens with bundled Lens Cap E-180E, Lens Hood ET-155 (WIII), Lens Soft Case LS400 and Drop-in Screw Filter Holder 52 (WIII) with 52 mm protect filter is now available for sale in Hong Kong and the suggested retail price is HK$99,480.
    Accessories for EF 400mm f/2.8L IS III USM and suggested retail prices are as follows:
    Suggested Retail Price
    Lens Cap E-180E
    Lens Hood ET-155 (WIII)
    Short Lens Hood ET-155B
    Lens Soft Case LS400
    Lens Case 400E
    Drop-in Screw Filter Holder 52 (WIII) with 52 mm protect filter
    Drop-in Circular Polarizing Filter 52 (WIII)
    Drop-in Gelatin Filter Holder 52 (WIII)
    Extender EF 1.4x III
    Extender EF 2x III
    About Canon Hongkong Company Limited

    Canon Inc. (TSE:7751 / NYSE:CAJ) was founded in 1937 in Japan. Its predecessor, Precision Optical Instruments Laboratory, produced Japan's first 35 mm focal-plane-shutter camera “Kwanon” in 1934. Canon Inc. eventually expanded into the photocopying and printing industries, launching Japan's first plain-paper copier NP-1100 in 1970 and the world's first inkjet printer BJ-80 in 1985. Through the years, Canon Inc. has acquired in-depth experience in digital imaging product manufacturing, and research and development. It is a leader in the development of innovative products and holds the most technology patents in the imaging industry. Canon Inc. also makes a significant contribution to the promotion of photography. Today, Canon Inc. has a strong global presence and is one of the most important market players in the imaging, office and industrial product categories. As of 31 December 2017, Canon's global revenue was US$36.1 billion.
    One of the company’s first offices in Asia, Canon Hongkong Co., Ltd. (CHK) was established in 1971. It is responsible for the sales, marketing and after-sales services for all Canon product lines in Hong Kong and Macau. With the solely owned subsidiary Canon Business Solutions (Guangdong) Co., Ltd.” established in 2018, the company can also provide intelligent total business solutions and professional services to companies in the Greater Bay Area.  CHK adheres to Canon’s corporate philosophy of “kyosei”, which encourages the company and its staff to participate in social, charitable and environmental activities in the community. CHK implements internationally-recognized management systems and has achieved ISO 9001, ISO 14001, ISO 27001 (Canon Digital Production Center) and OHSAS 18001 certification. For more information about Canon Hongkong, please visit our website:
    [1] Among focal length 400mm f/2.8 lenses for cameras (SLR and mirrorless cameras). As of 5th September, 2018, based on Canon's research.
    [2] CIPA Standard, Focal Length: 400mm, EOS-1D X Mark II is used
    [3] With EOS-1D Series. However, it is not recommended for use under rain.