These Sigma lenses are compatible with full frame, or Aps-c sized sensor DSLR cameras.

Sony RX1 vs Canon 5D Mk III with Sigma 35mm f/1.4 sharpness comparison at the Photography Blog

Can't really understand the narrow focus or the scope of this comparison, but it is an interesting one, not many people get to have their hands on both these lenses at once :)

"The sharpness tests for this review were carried out using a real-world subject rather than a test chart. Both the Sony RX1 and the Canon EOS 5D Mk III DSLR / Sigma 35mm f/1.4 lens were mounted on a sturdy tripod. The camera's self-timer mode was activated to avoid camera-shake. Tonal and colour variances across the crops are due to changes in natural light during the session. Centre sharpness is very good from f/2.8 onwards on both the Sony . . . read more

Battle of the bokeh: Kai W checks out the full frame 35mm royalty, and some models too.

After Top Gear gets canceled, because of Jeremy's nth remark for verbally abusing minorities/foreigners/the Welch or whatever, I hope we'll see Jezza and Kai doing a Top Photo Gear program together, with explosions, tanks (lots of optics in these nowadays) and even more explosions!

Back to reality now, this time Kai gets his hands on the crème de la crème of 35mm lense$: The Nikon AF-S Nikkor 35mm f/1.4G, the Canon EF 35mm f/1.4 L USM, and the underdog that ate them all for breakfast, the Sigma 35mm f/1.4 DG HSM:

"The Battle of the Bokeh is back and we're looking at some fast 35mm lenses from Canon, Nikon and Sigma with the Canon 35mm 1.4L, Nikon 35mm G AF-S. This time, however, it's up to you to vote, and the video shows you the results of the blind-bokeh test. Which lens has the best bokeh?"

Wide-angle head-to-head: Sigma 14mm f2.8 EX Aspherical HSM vs Carl Zeiss Distagon T* 2.8/15 comparison at DXO Mark

This is a two-in-two test, the DXO Mark labs check out the Zeiss lens performance difference between Canon and Nikon mounts (5D Mark II vs D3x) and then pits the Zeiss versus the Sigma: 

"In DxO Mark’s testing the quality of the Zeiss lenses over the Sigma lens is very clear. A DxO Mark score of 17 for the Sigma lens is an OK score for a lens with this extreme wide angle: there are few wider corrected lenses on the market to cover full frame 35mm so if the lens were considered in isolation the score might possibly be accepted as a reasonable consequence of the focal length. However, when you look at the other lenses in this category the score does not look quite as good. Zeiss on the other hand have a shining DxO Mark score of 23 for their Nikon version, the highest for any lens of 20mm or wider with a Nikon FX mount (the Canon version scores a creditable 21). The Zeiss lens is much more expensive, nearly 4 times the price of the Sigma, so there will . . . read more

Sigma APO 70-200mm f/2.8 EX DG OS HSM lens review at Camera Labs: So, is there a situation where you should consider buying the Sigma 70-200/2.8? Well, yes! It's the cheapest way to get a stabilized 70-200mm zoom that offers a maximum aperture of f2.8.

Thomas Rubach tested the lens with a Nikon D800 body, a not so optimal solution, IMHO.

The Sigma 70-200mm f/2.8G OS delivers a decent overall performance, especially at focal lengths below 130mm. The center never disappoints throughout the focal range but the corners need some stopping down for good performance at focal lengths above 130mm. The resolving-power in the image-center is even good enough to use a tele-converter should you need to reach beyond the 200mm focal length. The image stabilization and the AF are OK but nothing to rave about, and a maximum magnification of around 1:8 and the size and weight does not differentiate this zoom from its competition. . . . read more

Sigma 35mm f/1.4 DG HSM review at Digital Camera Review: If I were stuck on a desert island with only one lens and my camera, this would be it.

The Lens was tested by Chris Gampat using a Canon EOS 5D Mark II body:

Overall, not a bad thing can be said about Sigma's 35mm f1.4 EX. The company surely put a lot of time and effort into the design and it's worth every penny. The lens is sharp as a razor, a relative speed-demon when it comes to focusing, and has some beautiful image quality. It may even stay mated to your camera! If we really had to nitpick, we could talk about the lack of weather sealing; but then the $899.00 price point gets factored in. And that understandably keeps the price down. Personally, this is currently my favorite lens--I'm old school and was trained to shoot with all primes. If I were stuck on a desert island with only one lens and my camera, this would be it. Sigma's 35mm f1.4 EX wins my fullest . . . read more

Sigma 35mm f/1.4 DG HSM Lens Review at SLR Gear: There's a lot to like here: great results for sharpness, low chromatic aberration, and low distortion.

"Sigma's produced an excellent lens in the 35mm ƒ/1.4 DG HSM, with comparatively great performance at the ƒ/1.4 aperture setting, where the lens will no doubt be used for the majority of the time. There's a lot to like here: great results for sharpness, low chromatic aberration, and low distortion. There is some significant corner shading when used wide open, but coupled with the corner softness at the same aperture settings this contributes to an interesting look and subject isolation. If you're looking for corner-to-corner image sharpness you'll need to stop down. The Sigma 35mm ƒ/1.4 is definitely priced to compete, and designed to perform. . . . read more

Sigma 35mm f/1.4 DG HSM Lens Review by Mark Goldstein at the Photography Blog: We can whole-heartedly recommend the new Sigma 35mm F1.4 DG HSM as a fast, well-built prime lens that delivers superb results. Essential!

Mark Goldstein tested this lens on a Canon EOS 6D body and went 'to 11' with his rating of this lens, giving it the unique rating of 'Essential' I also wonder where he tested it, since the lens seems dirty :)

"If the new 35mm F1.4 DG HSM lens is anything to go by, Sigma are definitely raising their game with the recent introduction of their three new lens ranges (Art, Sports and Contemporary). The Sigma 35mm F1.4 DG HSM is a fast and tack-sharp lens that exhibits low chromatic aberrations and very little barrel distortion. Vignetting at wide-open apertures is the only real optical issue of note, something that other fast lenses also suffer from, and stopping down to F/4 solves the problem altogether.

. . . read more

Sigma 35mm f/1.4 EX DG HSM Lens Review by Bryan Carnathan at The Digital Picture: The best lens Sigma has ever made?

"The Sigma 35mm f/1.4 EX DG HSM Lens, like all of Sigma's best lenses, uses HSM (Hyper Sonic Motor) AF. Autofocusing is internal and very quiet, making a light shhhh sound with some clicks being audible to the photographer if shooting in a quiet environment. Autofocusing is quick, though my perception is that the Canon EF 35mm f/1.4 L Lens focuses slightly faster when using both side-by-side.

Autofocus accuracy is of course paramount when making use of the great f/1.4 image quality with its shallow . . . read more

Sigma 35mm f/1.4 DG HSM lens worship at DP Review: If you're after a top quality fast prime at this focal length it should be right at the top of your short list, and it easily earns our top award.

"Sigma has produced some really fine lenses over the past few years, including the 50mm F1.4 EX DG HSM (which we liked a lot when we reviewed it in 2008) and the 85mm F1.4 EX DG HSM. But the 35mm F1.4 DG HSM may possibly be its best yet. In fact it's one of those rare lenses for which finding any fault seems almost churlish, so good is its overall performance.

Let's start with the optics. It's remarkably sharp, even wide open, outperforming not only its Canon, Nikon and Sony . . . read more

Sigma APO Macro 180mm f/2.8 EX DG OS HSM Lens review at PhotoReview: Buy this lens if you want a sharp and stabilized macro lens with a good working distance for photographing active insects and other small animals.

"Sigma’s APO Macro 180mm f/2.8 EX DG OS HSM is the fastest macro lens with a 180mm focal length currently available. Canon has an EF 180mm f/3.5L Macro USM lens but it's not stabilised and it was selling for more than AU$2000 (US$1580) when this review was written.

Tamron has a 180mm f/3.5 macro lens, which is also unstabilised and was selling for around AU$1350 at the same time . . . read more

It is 35mm day (Lens, not Film) at LensRentals: Canon EF 35mm f/1.4L & EF 35mm f/2 IS versus Sigma 35mm f/1.4 DG HSM resolution tests by Roger Cicala: No Canon can beat that Sigma.

"Looking at the average (mean) for center, average, and corners shows a bit more about the lenses. The old 35mm f/2 does quite well in the center and mid-lens areas, but it’s pretty awful in the corners. The new 35mm f/2 IS and the classic 35mm f/1.4 L do much better in the corners, with the 35 L (stopped down to f/2) clearly better than the new f/2 IS. But the Sigma does better than any of them. . . . read more

Sigma 35mm f/1.4 DG HSM 'Art" lens action is gearing up, first impressions are very, very positive.

Welcome to the new Sigma, the one that no longer wants to be the underdog of lenses. They made a pledge to improve upon themselves, a pledge that among other points included the statement that every single Sigma lens will be hand-tested at the factory, a move intended to stamp out the persistent rumors facts about horrible quality control and huge lens to lens variations in optical performance. . . . read more

Sigma 180 mm f/2.8 APO Macro EX DG OS HSM review at LensTip

Sigma has 6 dedicated macro lenses in its lineup and is currently in the process of modernizing all of them, with image stabilization, better optics, faster AF, and in this case, even a faster aperture:

"In order to show you how good the Sigma is it would be enough to write that practically at every aperture and across the whole frame the lens is better than the Canon EF 200 mm f/2.8L USM II, so praised and liked by many users. Personally I . . . read more

Sigma announces trio of new lenses, new naming scheme, and a promise of improved quality control.

Maybe some other makers of expen$ive lenses *cough* CaNikon *cough* should also look into the 'quality control measures' thingie.

Sigma Press Release

Sigma Corporation announces reorganization of lens lineup, new products and quality control measures . . . read more

Sigma 150mm f/2.8 EX DG APO HSM Macro Lens Review at The Digital Picture

"The Sigma 150mm f/2.8 EX DG HSM Macro Lens delivers excellent image quality in a relatively long focal length (for a macro lens) at a very reasonable price. . . . read more

Sigma 105mm f/2.8 EX DG Macro Lens Review at The Digital Picture

"What is also obvious from the comparison photo above is that the Sigma 105mm f/2.8 EX DG Macro Lens extends - by up to 1.8" (42mm) - when focusing. Although not a big deal, when you are using a lens that extends while working with close subjects, care must be taken to not bring the lens in contact with those subjects. The relatively small 58mm filter threads do not rotate when extended or retracted.

. . . read more

Sigma 50mm f/1.4 EX DG HSM review at photodo

"The design of Sigma's 50mm f/1.4 is quite unique when compared to similar lenses. The lens is physically larger and noticeably heavier than equivalent lenses, due to the large diameter front element, which promises to provide more even illumination towards the edges of the frame. Also the filter size is 77mm, which will suit those who already have filters for a professional grade standard zoom

. . . read more

Sigma 150-500mm f/5-6.3 DG OS HSM review at photodo

"Although this lens isn't one of Sigma's EX series, they don't appear to have cut any corners with the build quality. Much of the lens barrel is finished in Sigmas matt powder coated finish, which looks very smart when new, but seems to show up marks a little easier than some other lens finishes.

It has a fair bit of weight to it too. Weighing 1780g, many who've not used a large super-telephoto like this

. . . read more

Sigma 14mm f/2.8 EX Aspherical HSM ultra wide lens review at Prime Junta

"Overall, Twinkles is a real pleasure to shoot with. On my 20D, it focuses silently, very fast, and right on the money literally every time. I don't think I've had a single case of missed AF that wasn't obviously attributable to user error. I've shot with it in lighting conditions from bright sunlight to night streetscapes and poorly lit interiors. The major shootability issue is related to flare: Twinkles produces flare spots like there's no tomorrow, so I often found myself shading the lens with my hand, which was sometimes left in the frame and had to be cropped (or cloned) out. The exposed objective lens is a real dust and fingerprint magnet, too. . . . read more

Sigma 28-70mm f/2.8 EX DG Lens Review at The Digital Picture

"The Sigma 28-70mm f/2.8 EX DG Lens is a solidly built lens. As it often does, solid translates to a rather heavy weight for the small size. Measuring a trim 2.9" x 3.4" (74 x 87.2mm), the 28-70 weighs 18.1 oz (510g). At 70mm, the lens barrel extends an additional 1" (23.4mm) or so. I really like the size and shape of this lens - It is comfortable to hold. . . . read more

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