EF 24–70mm f2.8L II USM

EF 24–70MM F2.8L II USM

EF 24–70mm f2.8L II USM

The professional’s standard zoom lens

A high-performance large-aperture L standard zoom lens with a wide focal-length range. With 2 aspheric lens elements, a Super UD lens element, and 2 UD lens elements, magnification- type chromatic aberration at wider angles is corrected thus achieving superior image quality. It is fast yet has silent auto focus and includes a full-time mechanical manual focus with a zoom lock. The EF 24-70mm f/2.8L II USM consists of a professional-quality standard zoom that offers outstanding image quality and a fast f/2.8 aperture throughout its zoom range. This L-series lens has a reputation among professional photographers as being the go-to zoom lens, thanks to it’s sharp optics and ability to be used in almost any environment. The perfect companion to any full-frame EOS camera.

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Highlights

  • Versatile 24-70mm zoom range
  • Nine-bladed circular aperture
  • Manual-focus override
  • Fast, quiet autofocus
  • Sealed against dust and moisture
  • 0.38m close focus
  • Fast f/2.8 max. aperture
  • Ultra-low dispersion (UD) and super UD elements
  • All-new optical design


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SKU: Prod001-3-1-1-1-2-1-1-1-1-1-2-1-1 Categories: ,

Overview

Meeting the ever-increasing demands on image quality that digital photography brings, the redesigned EF 24-70mm f/2.8L II USM is the latest update to the acclaimed L-Series of EF optics, re-establishing a new standard for superb optics, high-end durable construction and performance in professional zoom lenses. A standard focal length zoom lens, it features a large aperture throughout its focal length. Featuring the latest advances in optical lens design, it utilizes 1 Super UD lens element and 2 UD lens elements that help minimize chromatic aberration in the periphery at wide-angle as well as reduced color blurring around the edges of the subject. In addition, 2 types of aspherical lenses are combined to help reduce spherical aberration over the entire image area as well as through the full zoom range. Optimized lens coatings also help ensure exceptional color balance while minimizing ghosting. The lens is also equipped with a circular 9-blade diaphragm for beautiful, soft backgrounds. A ring-type USM and high-speed CPU with optimized AF algorithms enable silent and fast autofocusing. Built for the rigors of professional use as well as to meet the increased number of shots available with digital photography, it’s constructed with improved dust sealing and water resistance while fluorine coatings on the front and rear lens surfaces help reduce soiling, smears and fingerprints. A zoom lock lever locks the zoom position at the wide end for safe transporting while attached to an EOS DSLR camera over the shoulder.

Hand-held low light shooting

The EF 24-70mm f/2.8L II USM’s constant f/2.8 aperture throughout the zoom range makes the lens a great low light performer that’s able to make the most of any available ambient light. The fixed aperture also gives you optimum control over depth-of-field. The new 9-bladed diaphragm produces a circular aperture, which helps to achieve beautifully blurred backgrounds with attractive bokeh. This means your subject can stand out against the background, with no distractions.

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Next generation optical design

Featuring the latest advances in optical design, the EF 24-70mm f/2.8L II USM brings together three aspherical elements to provide the highest possible image quality in a lens of this focal length. Significant reduction in chromatic aberration and reduced colour blur means less time in post production with an edge-to-edge sharpness usually only found in prime lenses.

Ground & Polished Glass Aspherical Lens Elements, Aspherical Lens Elements

An aspherical element is a free-curved internal component within your lens that corrects the distortion caused by the curvature of the spherical lens elements.These components are only found in professional quality lenses.Aspherical aberration produced with a standard lens can be avoided by using a higher quality lens with additional aspherical elements.The EF 24-70 f/2.8L II USM has three aspherical elements to separately counteract each of the individual internal aberrations, so your images are exceptionally sharp.

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Precision autofocus, with control

A ring-type ultrasonic autofocus motor means that you can focus quickly, near-silently and with precision. It also provides override manual focus allowing you to stay in control. This helps you to adjust the focus accurately to ensure it is exactly where you want it to be for the most creative control.

L-series build quality

Only the best technology and production techniques go into the building of each L-series lens. Part of the prestigious ‘Luxury’ line up, these lenses showcase the very best that Canon have to offer.

The EF 24-70mm f/2.8L II USM is engineered from the highest quality materials, which makes it robust enough for daily professional use. Weather sealing protects against dust and moisture, while fluorine-coated front and rear elements are easy to clean.

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Features

Super UD Lens Elements, UD Lens Elements

Effect similar to fluorite lens elements

The chromatic aberration correction effect is remarkable when a fluorite element is used. However, due to the high cost of fluorite compared to other materials, it cannot be employed widely on many lenses. To resolve this issue, Canon developed the UD (Ultra Low Dispersion) lens element, which is characterised by a low refractive index and low dispersive properties. It is widely employed in many lenses due to its ability to enhance the elimination of secondary spectrum.

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Ground & Polished Glass Aspherical Lens Elements, Aspherical Lens Elements

Aspherical lens elements capable of converging light rays to a point

Traditional spherical lens elements are unable to ensure that light rays entering from the peripheral areas and those from the centre converge at the same point. Generally, it is difficult for spherical lens elements alone to correct spherical aberration on large-diameter lenses as well as distortion on wide-angle lenses. In contrast, aspherical lens elements have a lens surfacing with varying curvature, designed to make the light rays converge at the same. The manufacturing of aspherical lens elements requires a high level of processing technology and precise measuring techniques in order to produce a lens curvature for obtaining the ideal imaging point. Canon embarked on developing the technology for manufacturing aspherical lens elements at an early stage, and succeeded in 1971 in commercialising the world’s first lens with built-in ground and polished glass aspherical lens elements. Today, Canon has been able to contribute to enhancing the image quality of many EF lenses through the mass production of glass-mould and replica aspherical lens elements.

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Ring USM, Micro USM, Nano USM

Enables silent and high-speed focusing

USM (Ultrasonic Motor) was first put into practical application in the world by Canon. USM drives the lens by transforming ultrasonic vibrations into rotation energy. Not only does it consume little power, it has high efficiency, torque and response, enabling high-speed focusing with almost no operating sound emitted.

There are three types of USM . The round-shaped Ring USM is simple in structure, and is best suited for use in a circular lens tube. It is especially useful for driving lenses such as large-diameter or super telephoto ones due to its high torque, and it also allows for full-time manual focusing. Meanwhile, the Micro USM can be employed on many types of lenses because it is low in cost and not subject to restrictions on the lens diameter. In 2002, Canon contributed further to the downsizing of lenses with the development of the Micro USM II, which is about half the size and weight of the Micro USM . And in 2016, Canon introduced Nano USM, which not only realizes a high speed AF that rivals that achieved by Ring USM, but also is able to operate quietly and seamlessly. It’s not an exaggeration to describe Nano USM as the most ideal motor for normal-use lenses that are meant to handle both still photography and movie shooting.

 Rung USM

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Micor USM (Left), Micro USM II (Right)

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Nano USM—The thin and tiny USM motor that achieves fast and smooth AF

Thin and compact, this USM, the latest to be developed by Canon, made its debut in 2016 on the EF-S18-135mm f/3.5-5.6mm IS USM. Computer chip-shaped (a factor that allows a more compact lens design) with power sources in the form of transducers, it connects directly to the AF actuating mechanism. It possesses a speediness and responsiveness that rivals that of the Ring USM, combined with a control that equals that of STM (lead screw-type). Its main benefit lies in enabling quiet, smooth AF operation in compactly-sized lenses such as standard zoom lenses. Also very suitable for movie-shooting, its high speed AF is able to handle scenes with subjects that are moving at a fast speed as well as those with unpredictable movements.

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The Nano USM is shaped like a computer chip, and has 2 transducers in its center.

Ef 16-35mm f2.8L III USM Cross Section Ef 16-35mm f2.8L III USM Cross Section 2

A cross section of the EF-S18-135mm f/3.5-5.6 IS USM, released in 2016 and the first lens to carry the Nano USM. Moving along the top of the slider, the Nano USM directly drives the main AF power source. As this motor not only allows for fast and smooth AF but is also small in size, it makes it possible for the lens that utilize it to be around the same size as lenses with STM.

 

Inner Focusing, Rear Focusing

Enables high-speed and precise AF

The inner focusing and rear focusing systems adjust the focus by moving only some of the lens elements inside the lens. Inner focusing refers to the type where the focusing lens group is located in front of the aperture diaphragm, while this group is positioned behind the aperture diaphragm in the case of the rear focusing type. As a smaller number of lens elements need to be moved, AF speed can be increased, and the size and weight of the entire lens can also be reduced. Besides, the front of the lens does not extend out during focusing, thus making it easy to achieve an integral lens structure, which in turn contributes to the enhanced robustness of the design. Yet another advantage of this system is that it enhances the operability of polarising filters as the filter mount does not rotate during focusing.

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EF24-70mm f/2.8L USM Rear System

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EF400mm f/5.6L USM Rear System

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EF70-200mm f/2.8L IS II USM Inner System

Full-time Manual Focusing

Enables MF immediately after AF

Many of Canon’s EF lenses are equipped with “full-time manual focusing”, which allows manual focus right after auto focus is complete, just by turning the focusing ring and without the need to switch to MF mode. All Ring USM and STM lenses support full-time manual focusing.

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Dust- and Drip-Resistant, Fluorine Coating

Dust- and drip-proof for shooting under harsh conditions

Many of Canon’s L lenses come with a dust- and drip-proof structure, with rubber sealing applied to the interface area between the joint of the mount and the camera, as well as sealing at the movable parts such as the focusing ring and the lens extension tube. Rubber materials are also employed even at the smallest parts, such as the switch panel and the insertion slot of the drop-in filter compartments. The excellent dust- and drip-resistance enhances the usability of lenses under adverse weather, and helps to address the needs of professional photographers who are required to perform shoots under harsh shooting conditions. Fluorine-coated lenses allow dirt attached to the lens to be wiped off easily.

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Circular Aperture Diaphragm

Expresses point light sources in beautiful round bokeh

The aperture is made up of several blades, the number of which determines the shape of the bokeh effect, such as in the case of illumination, light seeping through the leaves of a tree, and light reflection from the water surface. Light normally appears round when seen through our eyes, thus expressing light in a circular shape adds a more natural and soft touch to the resulting image. Almost all EF lenses employ a circular aperture diaphragm.

 

 

Specifications

PHYSICAL SPECIFICATIONS

Specification Details
PRODUCT WEIGHT INPUT-1 805 g
FILTER DIAMETER (MM) 82
MAXIMUM DIAMETER X LENGTH (MM) 88.5 x 113
WATER/DUST RESISTANCE Yes

OPTICAL CHARACTERISTICS

Specification Details
 AF ACTUATOR  Ring USM
DISTANCE INFORMATION Yes
LENS CONSTRUCTION (ELEMENTS/GROUPS) 18/13
MINIMUM APERTURE 22
 AF ACTUATOR  Full time Manual focus
MAGNIFICATION WITH EXTENSION TUBE EF12 II 0.63-0.18
MAGNIFICATION WITH EXTENSION TUBE EF25 II 0.74-0.41
ANGLE OF VIEW 74° – 29°, 53° – 19°30′, 84° – 34° (horizontal, vertical, diagonal)
MAGNIFICATION 0.21 (at 70mm)

ACCESSORIES

Specification Details
EXTENDER COMPATIBLITY  Not Compatible

 

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EF 24–70mm f2.8L II USM

Price:₨
  • Mount : EF

  • Aperture : f/2.8

  • Lens Type : Zoom Lens

  • Category : Standard Zoom

  • Focal Length Range : 24-70mm

  • Photography Genre : Portrait

  • Technology : USM

  • Dust/Moisture resistance : Yes

  • Weight : 805 g

  • Luxury Lens : Yes

  • IS System : No

  • Lens Construction (Elements/Groups) : 18 elements in 13 groups

  • Filter Diameter (mm) : 82

  • Closest Focusing Distance (m) : 0.38

  • Length (mm) : 113

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