Sigma 20mm f/1.8 EX Aspherical DG DF RF AutoFocus Super Wide Angle Lens with Hood for Nikon AF D Cameras - U.S.A. Warranty

2013-08-05T21:00:00

The lens is surprisingly sharp (especially in the center). But due to the severe coma I found it useless for night photography involving pinpoints of light (e.g. stars, distant lights). I would suggest that its best usage to be portraits and interiors.

Michael S.

2013-06-24T21:00:00

I shoot on a nikon d800 and I used the nikon 20mm 2.8 for over a year in nightclubs and music festivals. I bought the sigma for the sole reason of having a larger aperture, however, the image quality on the sigma is FAR better than the nikon. Build quality is a little plasticy but that's too be expected these days, it's not "too" plasticy by any means. Focus ring is smooth and buttery, bokeh, amazing, image quality, sharp. All around great and better than the nikon! Autofocus is "normally" fast, nothing amazing or slow about it. Highly reccomend this over the nikon.

Schafer

2013-03-22T21:00:00

I love this lens, and it works perfectly well with my Nikon D7000 and never did I ever encounter any issues with it. I use primes, and it was with this lens that got me started in building my f/1.8 lens line-up. Starting with this 20mm, followed by the 28 sigmas. Then the Nikkors 35, 85, and a manual focus Nikkor 105mm, all in f/1.8!!!

Dexter

2011-09-06T21:00:00

This lens won't even allow my D7000 to power up. It seems to work on some older bodies, but I'm sending it back, since it's useless to me.

ChuckS

2011-06-30T21:00:00

This lens supposedly has great optics. Unfortunately, I never got to use it because it does not work on the Nikon D7000. Google it, and you'll see for yourself. When you attach the lens, the metering cuts in and out, and the AF will not work. I quaduple-checked all my settings, on both lens and camera, and no dice. Apparently, it's a Sigma firmware issue - you have to send the lens to Sigma in Japan for a firmware upgrade, and it takes weeks. [...] Really disappointing, as nobody else makes wide, fast lens for an affordable price.

Josh

2010-02-02T19:00:00

This lens is one of "the thousand eyes" which the night has. (Thank you Bobby Vee or Vinton or whomever). It captures the emotion we all feel while experiencing cityscape or the "Starry, Starry Sky". (Thank you Elton John?) Need I say, broadens one's horisons?

Papa

2010-01-09T19:00:00

This is another Sigma fast wide angle prime. I also own the 30mm and 50mm f1.4 and this has a very pleasing bokeh as well as just the right sharpness for portraits. I think the sharpness at 1.8, while not the razor sharp you'd want for a macro, is just the right sharpness for people. It is large and heavy and requires an 82mm filter but I don't consider those shortfalls, just artifacts of the design. A nice feature is that it focuses down to 6.5" which is great for getting those in your face non-flattering shots :) It doesn't have HSM but it focuses nice and fast on my D90. I have never experienced focus problems with any of my six sigma lenses and would not hesitate to buy Sigma again.

bill-e

2010-01-09T19:00:00

This lens is much maligned on listservs because of supposedly poor performance wide open. At 1.8, however, it is the only 20mm lens of this speed available. While it is a bit soft wide open, it is fine for my purposes. However, stopped down only to f2 or f2.2 my sample becomes extremely sharp. The minimum focus distance is also extremely close, providing near-macro, wide field capability.

ROBERT G.

2007-03-25T21:00:00

BARGAIN PRICE FOR A HIGH QUALITY FAST LENS. MANUAL ADJUSTMENT GETS THE MOST OUT OF IT.

John

2007-02-04T19:00:00

Very fast lens and great depth of field for wide angle photography purposes. With a digital 1.5x factor, it makes for a great photojournalism lens.

Kodachromephotographer