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Sigma 20mm F1.8 EX DG ASPHERICAL RF
8.0 out of 10

Sigma 20mm F1.8 EX DG ASPHERICAL RF

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

Great Deal: $579.95

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

Showing 1-10 of 48
Overall 8
8.0

Bad focusing

Wah, Amazon
19 February 2014
  • Summary: Overall its a good lens. auto-focus is pretty crappy sometimes when you're trying to catch something fast. Loud autofocus when its on video mode, but manual focusing is pretty quiet and smooth. Pictures come out clear, get a good wide angle without distortion like a fish-eye lens. Bought over a year ago, used frequently, and still lasting good.
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Overall 8
8.0

Aurora Lens

Marvin W. Falk, Amazon
27 April 2013
  • Summary: I purchased this lens to photograph the northern lights in Alaska. It works well for that purpose, but is not as sharp as my Canon EF 17-40 f4 in brighter light.
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Overall 8
8.0

Nice lens for APS-C format cameras

Shinebox, Amazon
28 March 2013
  • Summary: This is for a Canon mount. All the other reviews pretty much sum up this lens. On APS-C it crops out the ugliness of the smeared corners. I can't get a sharp pic in any corner at any aperture on FF. On APS-C it's a different story. Just use f5.6 for everything and you will be ok. The FF vignettes and smeears the corners pretty badly. The 14mm F2.8L lens is over $1,000. Big difference but if you have FF i am sure the L lens will be better as it can't be worse..
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Overall 8
8.0

Digital SLR Novice but I Love This Lens!

Patrick Callen, Amazon
7 July 2012
  • Summary: Huge Objective for Light Gathering! I Don't Manually Focus Very Often My Judgement is Not That Good with My Eyes Anymore. Sometimes Hunts A Long Time to Focus in Auto Mode! But That's Rare, Most of the Time... Fine! I Do a Lot of Close-Up and Sometimes Large Group Candids. Perfect Lens for This!
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Overall 8
8.0

Good value for the money, especially for the DSLR videographer on a budget.

sltillett, Ebay
6 June 2012
  • Summary: This is a solid lens. I would recommend it to new and ametuer consumers -- for the money, the picture is hard to beat. I use it primarily for video when I want a wider shot than my Canon 50mm f/1.8. The lens provides clear shots at wide angles. It is not quite as wide as the Tokina 11-16 f/2.8, which will get the whole room in the shot, but then again, I got it for 1/2 the price of that lens (which retails for about $600) and the Tokina is not a prime and is only f/2.8.
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Overall 8
8.0

Unless you're willing to drop 2k on an equivalent L series lens, get this.

kailandhoneck, Ebay
8 July 2011
  • Summary: Great for star photography! Large aperture, wide angle lens. It doesn't really have that super ultra crispness that my canon primes do (35mm f/2, 50mm f/1.8) but it works incredibly well in low light.
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  • See Product at eBay ($579.95)
Overall 8
8.0

Surprising Sharpness Considering Its Reputation

entropic-remnants, Ebay
7 March 2011
  • Summary: I bought this as an additional secret weapon for weddings and industrial hand held, low-light shooting. This is the latest version of this lens (there is an older version that is not "DG"). This lens is either loved or hated apparently due to the Sigma curse of poor quality control. I've been lucky with Sigma's so far, but I've had friends that had to send their lenses back. To Sigma's credit, they always seem to return a well adjusted and properly operating lens.
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  • See Product at eBay ($579.95)
Overall 8
8.0

Surprising Sharpness Considering Its Reputation

entropic-remnants, Ebay
7 March 2011
  • Summary: I bought this as an additional secret weapon for weddings and industrial hand held, low-light shooting. This is the latest version of this lens (there is an older version that is not "DG"). This lens is either loved or hated apparently due to the Sigma curse of poor quality control. I've been lucky with Sigma's so far, but I've had friends that had to send their lenses back. To Sigma's credit, they always seem to return a well adjusted and properly operating lens.
  • Read full review
  • See Product at eBay ($579.95)
Overall 8
8.0

Quality low-light, wide-angle, full frame lens.

rwdrex, Ebay
22 May 2010
  • Summary: If want a fast aperture f1.8, wide-angle 20mm, full frame sensor capable, prime lens--you have virtually no other options under $1,000. Quality build, a bit heavy with an unusual auto focus/manual focus mechanism. Feels good holding, easy to control and manually focus. Fast auto focus. OK sharpness wide open @ f1.8. Exceptional sharpness @ f4.0 and up. Low distortion and CA. Great bokeh! Get to know it's limitations and you can excel @ photo taking with this unique lens.
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  • See Product at eBay ($579.95)
Overall 8
8.0

Quality low-light, wide-angle, full frame lens.

rwdrex, Ebay
22 May 2010
  • Summary: If want a fast aperture f1.8, wide-angle 20mm, full frame sensor capable, prime lens--you have virtually no other options under $1,000. Quality build, a bit heavy with an unusual auto focus/manual focus mechanism. Feels good holding, easy to control and manually focus. Fast auto focus. OK sharpness wide open @ f1.8. Exceptional sharpness @ f4.0 and up. Low distortion and CA. Great bokeh! Get to know it's limitations and you can excel @ photo taking with this unique lens.
  • Read full review
  • See Product at eBay ($579.95)
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