EX (EX Lens)
The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.

IF (Inner Focus)
To ensure stability in focusing, this lens moves the inner lens group or groups without changing the lens' physical length.

ASP (Aspherical Lens)
The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.

DG (DG for DIGITAL & FILM)
These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras whilst retaining suitability for traditional 35mm SLRs.

28-70mm f/2.8 EX DG

Compact, lightweight, yet robust, large aperture zoom lens

This compact, large and constant F2.8 aperture zoom lens and is ideal for digital SLR cameras. Two SLD elements and four aspherical lenses provide the ultimate correction against distortion as well as all types of aberration, especially spherical aberration. Its advanced optical design ensures high performance throughout the entire zoom range.
The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm, maximum diameter of 74mm, filter size of diameter 67mm and weight of 510g.

Compact, lightweight Zoom Lens
The use of aspherical lenses in the construction of this lens not only corrects aberrations but also produces a very small and lightweight lens design. Its compact, yet robust, construction has an overall length of 87.2mm, maximum diameter of 74mm, filter size of diameter 67mm and weight of 510g.

F2.8 large aperture over the entire zoom range
This lens offers a large aperture of F2.8 over its entire range of focal lengths and its large depth of field offers greater freedom of creative expression.
This lens is perfectly suited for low light conditions indoors or at dusk. It covers wide angle to medium telephoto and is ideally suited to a wide range of subjects.

Excellent optical performance
Two Special Low Dispersion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. Four pieces of hybrid aspherical lenses offer excellent correction for distortion as well as all types of aberration. This lens’ excellent optical performance makes it an ideal lens for Digital SLR Cameras as well as film SLR cameras.

Super Multi Layer Coating
It incorporates "Super Multi Layer Coating" to reduce the influence of harmful light caused by reflections from the digital image sensor.

Minimum focusing distance of 33cm at all focal lengths
It has a minimum focusing distance of 33cm at all focal lengths and a maximum magnification ratio of 1:4.4, which is very convenient for close-up photography.

Zoom Lock Switch Mechanism
This lens is also equipped with a zoom lock that eliminates "Zoom Creep". This remarkably compact, high performance zoom lens is ideally suited for traveling.

Petal Type Hood
Since the front of the lens does not rotate, a Petal-type hood and circular polarizing filters can be easily used.

Price: £214

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Lens Construction
14 Elements in 12 Groups

Angle of View
75.4 - 34.3 degrees

Number of Diaphragm Blades
9 Blades

Minimum Aperture
F22

Minimum Focusing Distance
33cm

Maximum Magnification
1:4.4

Filter Size
67mm

Dimensions
Diameter 74mm X Length 87.2mm

Weight
510g