LensTip.com

Lens review

Sigma C 150-600 mm f/5-6.3 DG OS HSM

4 May 2015
Arkadiusz Olech

11. Summary

Pros:
  • well-done, well-thought-out design of the casing,
  • excellent or very good image quality in the frame centre across the whole range of apertures and focal lengths,
  • good performance on the edge of the APS-C/DX sensor,
  • adequate sharpness on the edge of the full frame (apart from 600 mm),
  • low chromatic aberration,
  • no reservations concerning the spherical aberration correction,
  • moderate distortion,
  • excellent coma correction,
  • slight astigmatism,
  • low vignetting on the APS-C/DX,
  • efficient and silent autofocus,
  • useful image stabilization,
  • rich standard accessory kit.

Cons:

  • work against bright light could have been better,
  • too high vignetting on full frame.

When you start comparing the list of pros and cons of the Sigma tested here and its immediate rival, the Tamron SP 150–600 mm f/5–6.3 Di VC USD, you find out they are by and large identical. Indeed you deal with almost twins, with the same parameters, price and performance. The differences, if there are any, are slight. For instance the Tamron is sharper at the longer end of the focal scale in the frame centre but the Sigma performs better on the edge of the APS-C sensor and full frame. The Tamron wins when it comes to the correction of vignetting  but the blurred areas look nicer in the case of the Sigma. In many categories the rivalry between those two ends in a draw – like for example in the case of chromatic aberration, spherical aberration, distortion, coma, astigmatism and the performance against bright light. The Tamron’s optical stabilization is a tad more efficient but the Sigma offers a better accessory kit.


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It all makes us to assess both devices very similarly, especially that their prices are very much alike too. The decision whether to buy the Sigma or the Tamron seems to depend on your personal tastes and preferences only.