Telephoto Zoom Lens
170-500mm f/5-6.3 DG ASPHERICAL RF

High-performance, 500mm ultra-telephoto lens.

This compact aporchromatic ultra-telephoto zoom lens covers a range up to 500mm and is ideal for photographing sport, nature and landcapes.

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Equipped with one aspherical lens and three SLD (Special Low Dispersion) glass elements
This lens uses one aspherical lens and three SLD elements for excellent correction of chromatic aberration. Colour aberration in the secondary spectrum is compensated by using three Special Low-Dispersion (SLD) glass elements, making high-quality images a reality throughout the entire zoom range.

The rear focus system
The five-group zoom and rear focus systems ensure high performance stability and ease of use.

Detachable tripod collar
A removable tripod collar and matched lens hood is included as standard.

Lens Construction
13 Elements in 11 Groups
Angle of View
14.5 - 5 degrees
Number of Diaphragm Blades
9 Blades
Minimum Aperture
F32
Minimum Focusing Distance
300-320cm
Maximum Magnification
1:6.6
Filter Size
86mm
Dimensions
Diameter 92.5mm X Length 232mm
Weight
1345g
SRP
£629.99

170-500mm f/4-6.3 DG ASPHERICAL RF
SIGMA
CANON
NIKON (D)
SONY
PENTAX

BACK

Which Digital Camera - January 2006
'The big change from the previous version is a new, multi-layer lens coating, that reduces the risk of flare and ghosting in contrasty light and, therefore, improves the picture quality' ‘We certainly got impressive images from this lens throughout the range.’ ‘If you want a massive zoom range without spending a huge amount of cash, then the Sigma 170-500mm lens is a great product.’
   
Photography Monthly - August 2006
'Wide open, performace across the frame is consistanct and very good, especially at f/8.’ ‘For real pulling power on a budget, and better results that many shorter range optics with a converter, consider this.
   
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