LensTip.com

Cons: Lensflare is a issue and a noisy motor. to use a filter is only possoble to use the rich and the hood but only with crop-cameras.

Pros: A great angle,sharp and build like a tank.

Summary: Low cost lens with a great performance.

Cons: Weird focus behavior Over exposing Long side identifies itself as 31mm A bit bulky Flares easily

Pros: Relatively light, much more than Nikon 14-24 Decent optical quality for the money My wide companion in many sessions

Summary: Very good for the money

Cons: - flares when exposed to strong light - weak in the corners of FF over the whole range wide open

Pros: - up from f8 really workable on FF cameras over the whole range - produces excellent sharp images on normal sized prints - good build quality with internal zoom keeping dust out - not too heavy

Summary: Assuming the lens is more than 10 years old when Sigma started to sell it it is a workable lens for a semi pro. Sold for 120 bugs used definitly a clear buy on my FF D700. Almost all drawbacks concerning image quality of the lens can be quickly corrected in the post processing on your laptop. Value for money is excellent!

Cons: Big and heavy, limited zoom range as 15-35 would have been better. The distortion is obvious but can only be expected in a lens like this in this price range. Sigma's two step AF-MF changeover is an unnecessary pain.

Pros: Really wide at the wide end, great on full frame and APS-type bodies. No real complaints about the performance.

Summary: Your flexible friend, able to give breathtaking views and really a plus on small sensor DSLRs.

Cons: Extremely wide angle lens on full frame cameras for landscape photography

Pros: Wide protruding front lens cannot permit filter use. However, the lens can mount an hood, which takes filters, but this causes extreme vignetting on FX from 15 to 21mm, so it's perfectly useless. Sharpness is so-so in the center, poor in the corners and very poor on FX corners. This lens is a toy compared to genuine 16-35, 17-35 or Canon 17-40 lenses.

Summary: Not suggested at all.

Cons: The obvious protruding glass and the on and off again 2 piece hood ring. Please do read carefully the actual reviews before you accept a generalized rating ..... the lens obviously is sharper for some mysterious reason on DX? I don't know...rumor maybe?

Pros: Sharp enough for my use, f5.6 through f11 landscape lens on DX.

Summary: It's funny how this site rates glass (as well as others) without thought to the practical variables of use. Trying to conclude objective ratings from subjective opinions is hilarious in my view. I bought mine at a well respected brick and mortar camera store for $69 in near mint condition......They said "It's a Sigma and we don't carry their line, it's discontinued, and our customers over-look these far too often". All except one who pulled his wallet out so fast my card flew across the room and swiped itself automatically on the fly that is. Funny thing? Same store has now taken on the new Sigma line and they tried to sell me a new "Art" 18-35/1.8 the other day. Tongue in cheek....

Cons: maybe too big for the range

Pros: professional look, good sharp lens, good corners (no in FF)

Summary: buy it at low price, it's a businnes

Cons: Flares, no flat frontlens

Pros: ...good built qualitike, solidly built, very wide full frame at a reasonable price point.

Summary: ...very good lens indeed for the mad angle photography

Cons: 1.prone to be scratched due to its protruding front elements, 2.hood coating will gradually loose due to the frequent attachment and detachment of filter holder, 3.very ridiculous vignette(like a big black circle) at 15mm on FF when the filter-holder attached. 4.hard zoom ring 5.copy variation(same old story from sigma) and sigma stopped producing this lens :(

Pros: 1.sharp enough all through 15mm to 30mm 2.price tag beats the quality, 3.firmly built, 4.AF is sufficiently fast under low light conditions, 5.manly feeling when grab with a Full Frame Camera

Summary: very good lens indeed for the mad angle photography..

Cons: Flares, no flat frontlens, high price filters cause of the 82mm frontdiametre

Pros: AF-Lock-ring, solid, integrated lenshood, good built qualitike lke Sigme EX, delivered with Lensquiver good polstered.

Summary: good price, solid Lens good choice to use in combination with 24-XX/24-XXX Lenses Used it for Canon EOS 40D/7D

Cons: Vignetting, flare a lot.

Pros: Good resolution even on full frame. Lightweight design. Great metal hood. Pro Look.

Summary: A good option for a aware-budget user

Cons: - Not terribly sharp at reasonable apertures. - Visible distortion at wide end. - Not HSM. - Filter awkward to use and causes vignetting at wide end. It's 82 mm to boot. - Flares a lot. - The SIGMA color may be a turnoff.

Pros: - Pretty decent optics. - Built to last. - Useful range on an 1.5x crop DSLR (but I wish it was a bit longer, as I had to change this for a 28-75 a lot).

Summary: I had this on a Minolta DSLR for awhile, back in '06-'07. It had its quirks but served the role of the WA zoom quite well until I jumped ship for Canon. Not sure how it fares on an FF camera but the 15 mm sounds real wide.

Cons: Flare is the biggest issue with lens. Distortion as is to be expected. Cannot mount a filter.

Pros: Solidly built, very wide full frame at a reasonable price point.

Summary: For the price, unless you are a pixel peeper, this is great value lens for a full frame. No it will not stand up to lenses that cost 5 times as much, but then it does not cost 5 times as much. The major downside is it high propensity for flare and the inability to use filters.

Cons: dual focus gimmick very loud focusing size/weight/flare

Pros: sharp, good range

Summary: excellent iq for the price.