28-70mm f/2.8 EX DG
Lens Hood
Fitted Padded Case
Front and Rear Caps
Instruction Manual
1 Year Warranty Card

 

Standard Zoom Lens
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.

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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.

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
SRP
£279.99

28-70mm f/2.8 EX DG
SIGMA
CANON
NIKON (D)
SONY
PENTAX

Ephotozine - July 2005
'I have found with a number of lenses made for 35mm film that edge resolution was as good at the edge of a cropped sensor as in the centre and this was again the case and overall I was impressed with this lens. As a fast and relatively lightweight lens for standard to short telephoto work, this lens has a lot going for it. …it is well built, nicely torqued and felt right in use.’

   
Photography Monthly - October 2006
'Quality internal construction results in well-controlled chromatic aberrations and distortions and at apertures between f/8 and f/16 this lens produces razor sharp images at both extremes of the focal length range, especially at the wider end.’
   
Which Digital Camera - October 2006
'The zoom ring is nicely torqued, with no creep, so there’s no need to use the lock provided. A fast and relatively lightweight lens, which has a lot going for it. Small and well built, it’s ideal for portraits. Picture quality is good; excellent when stopped down.’
   
  Digital Photo Pro - June 2007
'On test this was one of the best lenses we looked at. The resolution throughout the zoom range was high, as was the contrast, while the overall colour was pleasing. I would certainly be happy to work with this lens based on the test analysis and it has a nice balance between weight and size without compromising on its optical qualities. Overall I would say that this lens looks like a bit of a bargain.’
 
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