Reviews, reviews, reviews...

8.0 out of 10


This Sigma 20mm F1.8 EX DG Aspherical RF is a unique Sigma offer Read more

Great Deal: $549.00

Reviews and Problems with Sigma 20mm F1.8 EX DG ASPHERICAL RF

Showing 1-6 of 6
Overall 4

Sharp Lens But Slow Focus

OmarPhoto, B&H Photo
5 March 2013
  • Excerpt: I purchased this lens to shoot with it at live music events in dark venues with stage lighting and in very fast-paced environments, unfortunately this lens didn't work out so well for me because in those very demanding situations it's auto focus performance left much to be desired as it often struggled to achieve focus.
  • Pros: Nice Bokeh, Strong Construction, Very Sharp
  • Cons: Poor in Low Light, Slow Focus
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Overall 4

Embarrassingly soft for MY intended use

Shoebum, B&H Photo
30 July 2012
  • Excerpt: I purchased this lens to shoot stars due to its speed and wide angle and ignored most reviews thinking that people were just being picky and over critical, after all, these were just the specs I needed! Alas, I was terribly disappointed by this Sigma lens. Wide open this lens is useless for night shooting as the stars, even in shorter exposures blur and flare in a halo anywhere outside of the very center.
  • Cons: Soft not in a good way
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Overall 4


Melinda Jamieson "luvmyfrg", Amazon
21 March 2011
  • Summary: I think it would be a decent lens, but does not work with the Nikon D7000. Wish someone had said something before buying.
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Overall 4

Should have been smarter

Matthew Howe, Amazon
9 July 2008
  • Summary: A 20mm f1.8 prime for $400.00? What was I thinking? At f1.8 the lens is unacceptably soft. Better at 2.8, but still not great. It's not until f4 that the Sigma matched the sharpness of my Nikon 17-55 f2.8 zoom. A full stop slower! This begs the question - what is the point of having this lens if it's soft until f4? Answer - no point at all. Sending it straight back.
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Overall 3

User Review

HQ, objektiivi
23 December 2013
  • Excerpt: Koska piirto 2.8 laajemmilla aukoilla on alle dslr-käyttäjän vaatimustason ja 2.8 valovoimalla on saatavilla samaan hintaan zoomejakin, jotka 20mm lisäksi kattavat polttovälialueen 17-50mm, en voi suositella tätä objektiivia. Sopiva hinta olisi tälle ehkä 150-200.
  • Pros: Hyvä tukeva rakenne ja toiminta., Valovoima teoriassa.
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Overall 4

Für Vollformat nicht gut genug

Blue-Focus "BF", Amazon
24 March 2011
  • Summary: Auch so eine uralte Objektiv-Rechnung, die längst eine Neu-Konstruktion verdient hätte. Die Lichtstärke ist zwar reizvoll, aber die Abbildungsleistungen und Bildfehler sind es nicht. Der Autofokus ist langsam, laut und rau. Sigma kann das heute zum Glück viel besser. Besser ein gutes Zoom kaufen - wenn auch leider nicht so lichtstark erhältlich.
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