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Sigma-20mm-f1-8-ex-dg-301964.587570
6.5 out of 10

Sigma 20mm F1,8 EX DG

Great Deal: $549.00

Reviews and Problems with Sigma 20mm F1,8 EX DG

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Sigma 20mm f/1.8 EX DG Lens

The Digital Picture
19 March 2007
  • Excerpt: One of the best situations in which to consider a third party lens is when the camera body manufacturer does not have an equivalent offering. Meet the Sigma 20mm f/1.8 EX DG Lens - as of this writing, Canon does not offer a lens this wide with an aperture this large . The Sigma 20mm is over 1 stop faster than the fastest Canon 20mm prime or zoom lenses (f/2.8).
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Overall 5
5.0
Value for money 6
6.0
Overall quality 3
3.0
Build quality 7
7.0

Sigma AF 20mm f/1.8 EX DG RF (FX) - Review / Test Report

photozone.de
11 October 2007
  • Conclusion: Just like its slightly longer sister lenses, the Sigma AF 20mm f/1.8 EX DG leaves us with mixed feelings. The center resolution of the lens is very good to excellent, while the borders and corners disappoint especially at large apertures. Vignetting is very pronounced wide open. CAs and distortion are well under control, especially for such a wide lens.
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Overall 6
5.5
Value for money 6
6.0
Overall quality 4
4.0
Build quality 7
7.0

Sigma AF 20mm f/1.8 EX DG RF (DX) - Review / Lab Test Report

photozone.de
31 July 2007
  • Conclusion: Just like its slightly longer sister lenses, the Sigma AF 20mm f/1.8 EX DG leaves us with mixed feelings. The center resolution of the lens is very good to excellent, while the borders and corners disappoint at large apertures. Stopped down, the resolution is very good across the DX frame, though.
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