Sigma DG APO 120-300mm f/2.8 EX OS HSM

Brand & mount

  • Autofocus lens, USM
  • Brand: Sigma
  • Mount type: Full frame
  • Type: zoom


Sigma DG APO 120-300mm f/2.8 EX OS HSM is a autofocus zoom lens with ultra-sonic motor for SLR cameras.

The optical scheme comprises 18 elements in 16 groups (4 SLD). Thanks to the 9-bladed aperture, the subjects located outside the depth of field are shown with very smooth features. Equipped with a silent ultrasonic motor providing fast and quiet autofocusing.

This lens has a size of 271 mm. The lens of this size it is difficult to carry. This lens weighs 2600 grams, given the weight of the camera, it may deliver long wearing problems. Minimum focusing distance 2.5 m is only for shooting distant objects. Is perfect for portraiture and plener photos. Sigma DG APO 120-300mm f/2.8 EX OS HSM went on sale in 2005. Currently out of production (2010) and is no longer available.

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Sample photos with Sigma DG APO 120-300mm f/2.8 EX OS HSM (


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