SPECIFICATIONS:

This high zoom ratio lens is designed exclusively for digital SLR cameras and incorporates Sigma’s original OS (Optical Stabiliser) technology. This system offers the use of shutter speeds approximately 4 stops slower. Pentax and Sony mount lenses are also equipped with the OS function as it is possible to use this with camera bodies which already incorporate a built-in anti-shake system. Four SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The HSM (Hyper Sonic Motor) ensures fast and quiet auto-focusing. This lens has a minimum focusing distance of 45cm (17.7in) and a maximum magnification ratio of 1:3.4, making it convenient for close-up photography.

• Sigma’s own unique OS technology
  This lens is equipped with Sigma’s own unique OS technology. This system offers the use of shutter speeds approximately 4 stops slower. It also compensates for camera shake when shooting moving subjects such as motor sports. For Sony and Pentax mount, the OS function can be used even if the camera body is equipped with an anti-shake function. It is possible select either the lens’ OS system or the camera’s own anti-shake function.
• Superior image quality
  Four SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range.
• Reduced Ghosting and Flare
  The super multi-layer coating reduces flare and ghosting and provides high contrast images even when the subject is backlit.
• Minimum focusing distance of 45cm throughout the entire zoom range
  A minimum focusing distance of 45cm (17.7”) throughout the entire zoom range and a maximum magnification ratio of 1:3.4 makes this lens ideal for close-up photography.
• Quiet and fast AF
  An inner focusing system and the incorporation of HSM provide fast and quiet auto-focusing.
  *AF will not function if the Pentax camera bodies do not support HSM.
• Petal-type hood
  This lens is supplied with a Petal-type hood to block out extraneous light and reduce internal reflections.
• Magnification scale
  A magnification scale is displayed on the lens barrel, ensuring ease of use.

• Lens Construction 18 Elements in 14 Groups
  
• Angle of View (SD Format) 69.3 - 5.7 degrees
  
• Number of Diaphragm Blades 7 Blades
  
• Minimum Aperture F22
  
• Minimum Focusing Distance 45cm
  
• Maximum Magnification 1:3.4
  
• Filter Size 72mm
  
• Dimensions Diameter 79mm x Length 101mm
  
• Weight 630g
  
  
  

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