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The following opinions have been automatically translated with Google Translate.  | sent on October 21, 2013 Pros: perfect focus, quality 'construction, closed and' crystal clear Cons: Autofocus is not precise, sharpness at f1.4-1.6, severe softness at the sides and edges up to f4 - f5. Opinion: I do not particularly love this lens, for the 'autofocus is not always accurate and the total lack of sharpness at the edges at wide apertures, and I speak not only under the f2 (which could also be understandable), but also closing at 2.8, the sides remain scarce. It 'a lens when used outdoors, the subject has to be centered, and then gives great blurry and good sharpness central, but to have a clear frame is laterally closed a lot. There 'to say that f5 and' really a knife and fears no comparison with anyone. Pero 'remains a lens lame in my opinion. |
 | sent on June 30, 2013 Pros: Brightness', Defocused, weight and size, Sharpness prepunched, Endowment Cons: Rigid plastics to the touch, AF is not fast to be ultrasonic aberrations at full aperture Opinion: Focal useful on APS-C, and 'a great lens in relation to the current price (300 € scarce). Net opening f1.4, allows creative shots and one blurred smooth and soft (very far from the canon 50 f1.8). RNLA sharpness and 'acceptable to TA, it becomes very good closing a couple of stops. The af and 'precise in my copy but the speed' and not 'to the level of USM Canon (30mm not' so fundamental) but it 's still higher goals with the engine tradizionale.rnSi noticed several aberrations in TA in the light: need a lot of tweaking to eliminate them. The problem is not known and closing with light omogenea.rnEsteticamente and 'a bell'obbiettivo but the plastics are very hard and give the impression of creak. The construction and 'still good, with the focus ring to focus well braked and homogeneous in the movement. Good hood and excellent storage. At the current price, and 'a good buy for a fixed short bright enough for indoor and of good quality'. |
  | sent on April 04, 2013 Pros: fast and accurate, bright, beautiful blurred Cons: is a bit 'heavy Opinion: I have this lens for several years and did not give it away for nothing. I find it really great. Some say it is faint at maximum aperture. Let's say that perhaps there is a lens to its maximum aperture is as clear as you would want to, not the L series of Canon is not. I own Canon 24-70 2.8f but for the price that does not work better than the Sigma. This is very fast in focusing where other objective are not. |
 | sent on March 25, 2013 Pros: bright, solid, small Cons: sharp only from f / 4 onwards Opinion: is a bell'obiettivo I tried for a couple of settmiane.rnHa a great blur especially if you open a little. ' The real drawback is that until you close f / 4 makes photos a bit 'soft. rnIl price in my opinion is if you plan on making videos. If you take it only for photos best classic 50ino that even worse, it is really for two pennies. |
 | sent on February 27, 2013 Pros: Focal comfortable with APS-C, brightness, construction, equipment, AF a bit 'noisy but accurate. Cons: Slightly noisier than the AF motor all'USM Canon. Opinion: Past the dreaded test the accuracy of the focus, I'm enjoying this view. Highly flexible thanks to the generous aperture and focal length, gives shots razor sharp and defined, all at an affordable price. Excellent supplied lens hood and bag, even the good. Construction, for sure when the lens of my favorite outfit, recommended!! |
 | sent on February 20, 2013 Pros: Report aperture / price, focal length compared to the smaller size. Cons: Since my copy focuses precisely I have not found cons. Opinion: It would be superfluous to repeat the comments that preceded me years and from whom I have gained confidence to buy, I will only confirm! RnSpendo two words to the versatility of this focal currently I made the outfit with a wide-angle lens, a telephoto lens, and only this to plug the hole that is 16 to 70mm.rnNon absolutely feel the lack of zoom across that I can handle with better satisfaction by choosing the trigger point. |
 | sent on February 09, 2013 Pros: Focal length, brightness, sharpness already at room temperature, equipment, pleasing bokeh Cons: The usual home Sigma chance to run into problems with a copy of AF, only optical camera APS-C Opinion: I have this lens for a few months, I use it on a 550D and I can say very satisfied. After the initial disappointment due to the fact that the lens suffered from front focus, solved with a free ride in AD Service, I started to appreciate it more and more. Very bright, very versatile, lightweight and relatively small, you can carry around all day without feeling the need to change lenses too. Its focal length allows you to use this lens for street, portraits and landscapes ambientati. Great for those short trips of 2-3 days in air port where you only hand luggage and you can not portre below too much weight. The sharpness is very good already at f1.4 and further improves turning a bit 'the diaphragm. The quaità construction seems good, and the equipment that is to be welcomed home with Sigma provides objective (handbag and parluce). The autofocus is fast and accurate enough, there is only a slight performance degradation in low light (although I believe that these benefits are influenzate body machine). Lacks stabilization, but shooting at 1.4 and being in times of security I have never felt the need, even in the evening, and given that this gimmick would have pushed the price and weight of the lens, I think it best that there is. |
 | sent on January 12, 2013 Pros: construction, quality, price, standard hood is f1.4! Cons: maybe just the fact that the exposure values ??are a little biased in my case, lens cap, used with the canon that gives me a bit of trouble always seems to lose it, but it is nonsense, Opinion: I fell in love. would be enough to close the review here, partly because I'm no expert on the subject, but now I try: rnl'obiettivo looks solid and sturdy, has the lens hood as standard, and it's nice stylistically speaking, black and gold are fine. the focal length of 30mm on aps-c is perfect for street, landscapes, portraits, a bit of everything we say. autofocus quickly and precisely, then F to 1.4, make everything more ... magical! bokeh "you write that?" that blows out the subject from the background, a brightness that allows pictures in almost all conditions, disarming clarity that you expect if you do not know the lens, rnnon I found no problem with f / b focus. I do not know how it behaves with the flare, but who .. mount the hood and avoid the sun diretto.rnper the rest I can not help but say, if you have a aps-c you have to have this lens in your kit and you can not help it most. rn |
 | sent on December 26, 2012 Pros: Blurred, Optical performance and colors, Construction. E 'equipped with a lens and with a good padded case. Cons: AF is not always precise Opinion: A lens by the quality / price ratio high. My copy has no problem of front / back focus (I tried it in the store but immediately felt the first copy was ok) and see the photos that brings out even at wide apertures is a pleasure. I also tried a set at a touch & try comparing it with the relatives of focal length Canon and I have to say that if the big beats with His Majesty 24L (which clearly wins, but not over the top ...), while costing a quarter of its price and is equal (for clarity) or higher (blurred) to the brand new canon 28 2.8 IS USM, which costs exactly twice. The only drawback autofocus that, as fast and completely silent, is not always precise in a "difficult", but just be there a little 'attention. And 'well built and wonder of the cost compared to the quality of the product. |
 | sent on November 12, 2012 Pros: Aim to do everything. Basically a 50 on a APS-C sensor. Very bright. Cons: No, if I had to find one: if it were stabilized while maintaining the brightness would be the top. Opinion: It would be the first lens to buy and have always mounted on fotocamera.Fornisce a length equivalent to 50mm on APS-C, and with the focal length f/1.4 is very bright and allows handheld shooting in interno.rnLa design dates back to 2008, but has done very well, better than other lenses produced in 2012 but maybe that transmit more feel to the touch plastic. |
user8331  | sent on August 20, 2012 Pros: Equivalent focal length, Construction, Brightness, Sharpness to large openings, Quality focus. Cons: Sigma quality control Opinion: I bought this lens for my Canon 600D (APS-C) to compensate for the lack of brightness of my camera kit. I wanted a lens that was used in indoor and low-light situations and it does its job very well. The Focal is PERFECT, equivalent to 48mm (50mm nearly so) on Full Frame. The construction of the lens is EXCELLENT, robust and easy to handle, belongs to the series of EX Sigma lenses. The focus ring is smooth at the right point, nothing to say. The HSM works well it may not be like the past USM Canon but is not considered a defect in some of this objective. Together with the lens hood is supplied, a semi-soft case (really well done) as well as warranty and manual. Brightness is a prerogative of this goal, if you have never taken a very open aperture (f/1.8 or less) you will be pleasantly surprised by the quality of the Bokeh of this lens. Both the focal length for the large display does not senyou absolutely need the stabilizer of a lens like that. I tried several shots with this lens and I have to say that it is already being used at full aperture (f/1.4) obviously improves turning a bit 'the diaphragm. So far I have used this glass for shooting evening with friends, for the Milky Way photos and portraits ambientati: I found it very versatile despite being a fixed focal length lens and I often avoided having to raise the ISO over 800. The only fault I find in this lens (but can be expanded to many Sigma lenses) is the "Quality Control Sigma" first to market goals, my suffering heavily front-focus and my camera unfortunately does not allow micro -setting so I was forced to wear lens and camera body to adjust to the service center. In conclusion I would recommend the purchase of this great lens that is giving me great satisfaction! |
 | sent on October 14, 2011 Pros: brightness value compared to competitors, blurred quality, sharpness already at f / 2, and outfit. Cons: Autofocus is not very precise, colors a bit 'cold attack only aps-c Opinion: This very bright 30mm can be mounted only on aps-c and not on full frame, but it is a lens that arouses great interest and sell it is not difficult. good focus, sharpness already from f/1.8-2 begins to be good to become a reference af/4-5.6, but must make a super bright lens at full aperture and does so. autofocus occasionally does not hook to perfection and certainly not at the level of the last usm canon of the house such as speed and low noise, also the loss of sharpness at the edges visible, but acceptable for a lens that is acquired by a specific use (perfect for half-length portraits, events, parties). last but not least, the colors it produces are a bit 'cold but easily corrected with a slight correction of the white balance. is equipped with a lens hood and a nice protective case. the best equivalent 50mm for aps-c, also because I think that mount a full 50mm on a aps-c is useless. |
 | sent on September 28, 2011 Pros: Focal perfect, bright, very sharp, light and compact. Cons: May have problems of front back focus Opinion: A great lens for APS-C you could safely leave always attached to the machine on the focal length of almost 50mm, really perfect. The construction is excellent (EX is a) small and compact, great for walking around for long periods. The lens is very bright and already at full aperture 1.4 is very sharp. From F2 onwards is almost a blade. I find it perfect for interior finishes such as museums and evening. My copy had a problem with front back focus that I easily fixed on my Canon 7D, for the rest of the AF type ultrasonic HSM is perfect and fast. I recommend everyone this lens! |
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