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  | sent on 18 Febbraio 2013 Pros: Unique zoom range. Outstanding control of distortion. In my case, I prefere it over the newer MKII version (sharper but with more distortion). It is possible to use it as a 18-35 mm shift zoom (perspective correction)in an APS-C body using a shift adaptor (for what it is fundamental to have low distortion). Cons: Not the sharpest lens on earth. The use of front filters is difficult and expensive (but possible). Opinion: This is a curious lens. I use it on my full frame body (D700) for ultra-wide landscapes. For this, the only problem is the use of filters (graduated and polarizer). You will have to choose between PHOTODIOX (expensive and limited assortment) or COKIN X-PRO (extremely expensive and hard to find, with quite good assortment). In the second case, you will have to make your own adapter for COKIN filter holder. This is not very difficult, but requires some skills (to do it, don't use the original and expensive COKIN filter holder, but a cheap chineese copy). I also use this lens as a perpective correction shift zoom (18-35 mm) mounting it on my NEX 7, using a modified shift NIKON to NEX adapter from KIPON. The original adapter is VERY FINE, but it does not provide aperture control on G-type lenses. The modification I made was to control apperture. This is not an easy modification, but it is possible. The resulting tool is amazing for architectural photography. |
The following opinions have been automatically translated with Google Translate.
 | sent on 18 Luglio 2023 Pros: Economical, interesting focal range, can also be used on film cameras Cons: does not work on Nikon Z Opinion: This lens is 20 years old and when you look in the used you have to keep in mind a few things, it is an old lens, and super wide angle if it has taken shots can have problems are delicate, just a micro shift of a lens and it's a mess. It is as soft as all the lenses of 20 years ago. It's a 12mm on FF you have to know how to use a super wide angle is easy to have flares, and know how to use flares. It is not very bright but you know but I use it for interior photos with the tripod, or freehand cityscape is more than enough. It must absolutely be tried before buying (like all the lenses used after all) if it has problems you can see immediately that is at 12 mm the corners are out of focus I tried several before finding the right one I can understand who was disappointed, but the lenses must also be checked in the physical store just take 2 shots and you understand if it works or not. The use on Nikon D600 with 24mpx is great, and on Nikon F5 film is perfect. The autofocus is fast enough. For 3 years it has been giving me a lot of satisfaction. Unfortunately it does not work on system Z. To whom I recommend it: to those who want a super wide angle without spending a capital and also the weight is contained 600 gr. |
 | sent on 16 Dicembre 2022 Pros: Nothing Cons: Poor materials, poor edge yield, dark Opinion: Paid very little and resold immediately. I was interested in the focal range of this lens (12 linear and 24 were comfortable) but with that yield and with those materials (the focus ring every time I touched it I was afraid that it would remain in my hands) I immediately resold the lens. Yield at the edges painful, soft and does not resolve even with closed apertures (where normally on a good lens is resolved) Disappointment, stay away. |
 | sent on 29 Dicembre 2021 Pros: Covered field of view on FF, low weight, solid construction Cons: Sigma materials that covers it, not very sharp at the edges, not very bright. Opinion: Extremely versatile lens for the focal length that can cover on FF, it was my first lens really pushed on FF, it took the place of the Sigma 10-20 that I used previously. Also with this Sigma I found the same problems that I had previously, low light, difficult to use in closed spaces such as poorly lit churches, tends to burn the lights that at least in my case are difficult to recover even in Post Production. at present it is found used at great prices, if you find it I recommend it. to start with the wide angles so important is a great travel companion. L I retired recently replaced with the nikkor 14-24 2.8 but I still keep it in the drawer. |
 | sent on 25 Dicembre 2020 Pros: focal hike Cons: All Opinion: Purchased (used) from my trusted store to make up for the lack of optics under 24mm.. result is that after 2 days I returned it to the store. My specimen had the following defects: In case of lights present in the scene the light itself was not pointy but always had a kind of halo (tried up to f13), if the light was a little on the side the photo lost a lot of detail, and to finish in LiveView the focus made a mess. Tried both with Nikon d700 and with D800 and D90 always the same problem. I hope I caught the failed specimen ... it was my first sigma and I was very disappointed, Ho Tokina, Samyang and Nikon no one has similar flaws ... Mah |
 | sent on 13 Ottobre 2018 Pros: Almost absent distortion, good construction, price in very versatile used on FF for covered field angle. Cons: Not very bright, the rubber of the nuts is easily Dirty. Opinion: I like it very much and I am fully satisfied with it. In the used is now at low prices, if it happens in hand a good example my advice is not to let him escape. The Sigma optics of those years suffered from a certain variability in the production, you have to pay attention to the copy you want to Buy. Protruding lens, fixed metal hood with Two-part cap, as for Samyang 14 brighter but gentle. The Autofocus Works Fine. Be careful not to damage the optics, which has a well-solid structure. |
  | sent on 30 Maggio 2018 Pros: Sharpness and no distortion on APS Cons: Flare Opinion: It has been my battle optics for many years, with tens of thousands of shots, used on APS it is absolutely impeccable even with sensors of many mpix and is appreciated for its incredible absence of distortion to the point that it can be used for architectural images. On APS, closing a couple of diaphragms, it has good sharpness even in the corners of the frame. It has a warm dominant feature that, together with the fall of light at the edges, generates very pleasant images with a strong visual impact. Used on FF (D800) it maintains a more than acceptable quality even at the edges. The flare... in the backlights fired with the sun in the frame, there is... but it's not that it's unbearable and then... with images so open, intersyminals also acquire a role in composition. Maybe it can disturb me, but I'm personally okay with it. After many years of glorious use, I replaced it with the new version, but... apart from (perhaps) slightly better contrast and more neutral color images, I can't say I found big differences in sharpness compared to the new version. Employee in liveview... it doesn't work, because the focus ring works in contrast to nikons, so the machine software in LW doesn't recognize it and it doesn't focus, just know it and make a reason for it. The small size makes it a good travel companion. Very recommended if you are lucky enough to find it used. |
 | sent on 15 Maggio 2017 Pros: super wide angle, does not distort, does not weigh much, for FF Cons: Delicate delicate sigma EX materials will overwhelm the hood, perhaps f4.5-5.6 Opinion: for the price it has, as used, nothing seen what you can do is IMPRESSION. Excellent for all the sensors I used with Canon 1D IIn and I can say that it defends fine, semiprofessional optics of constant value over time.rnWatch me photo Leon1971 made to Cannesrn then corrected to optimize the yield but without artifacts. Its prospective yield surely appreciates it in the photos of interiors |
 | sent on 28 Ottobre 2015 Pros: Accurate construction, solid feel, field angle, focal length, minimal distortion even at 12mm, excellent sharpness. Cons: Poor brightness. Inability to mount front filters, but I think it's an insurmountable problem, at the time, for all manufacturers, of these focal ... Opinion: I took this view recently, but I've already made numerous shots; I use a Nikon D750 with great satisfaction. It certainly is not easy to use point of view: we must try to keep the camera completely parallel to the horizon line to avoid monstrosity perspective. I reported among against the low light, but with 12-24mm focal even unregulated, there is no problem with long times, regardless of whether the D750 you can get, no unsolvable problems, taking with ISO 12800. In conclusion, the value is outstanding, without considering that, at present, still has the distinction of shooting angle ... Highly recommended. |
 | sent on 21 Luglio 2013 Pros: Angle extreme. Low weight and dimensions compared to the technical specifications. Very controlled distortion even at 12mm. Excellent sharpness in the middle of the frame. Cons: Few in relation to what he does. Pronounced vignetting at full aperture. Sharpness decreases significantly towards the edge of the frame. Very pronounced front lens, you have to be careful when using it. You can not mount front filters, but only in the inner jelly. Opinion: After purchasing the Canon 6D, I started to feel much the lack of a wide angle lens that could sotituire pushed my old and glorious sigma 10-20. Initially I was directed to take the new version then on the forum I found this sigma 12-24. Mechanically very good so far, has never been any sign of malfunction AF. The weight and dimensions are appropriate to a lens that offers such a wide angle of view even if the front lens is really pronounced and must therefore be treated with care when weather conditions are not optimal (always carry rice paper and pump). Unfortunately, the transition from 10-20 to 12-24 this was not simple and easy as I had thought. Those 4 mm in less effective are felt all need a lot of care nell'ultilizzo, it is not uncommon to photograph particular unwanted or their feet. We must learn to become familiar with the management of light sources as you can be with flare and brightness dips side. Visible vignetting wide open, but I think ita secondary issue, given the level of correction that reached all the photo editing software. And 'possible to install gelatin filters back into the slot, while there are screw-on filters. I must say that after a few months of purchase I'm starting to get the feeling with this beautiful lens. Ultimately I think it is a good buy and a lens that pushes to enhance the extreme perspectives and creativity. It is not without flaws but the advantages outweigh them. I recommend it to lovers of wide angle. |
 | sent on 29 Aprile 2013 Pros: Great! Very sharp at all apertures and acceptable cost. Cons: Weight, low light and poor protection of the front lens. Opinion: The lens has immediately showed his skills in terms of sharpness and image quality with both body that recently with D90 D800 body. Used during trips to various parts of the world proved to be a faithful traveling companion in all conditions. The picture quality is excellent at all apertures and focal lengths. Only problem is due to the considerable weight that is felt after a long day. |
 | sent on 27 Ottobre 2012 Pros: Angle of view, great clarity, no distrosione, no coloring, reliable and silent AF, zoom and focus rings comfortable and smooth, robust construction, cost / performance value. Cons: Little resistance to flare, you can not mount front filters, low light. Opinion: Excellent sharpness on both FX and APS-C shooting at apertures between f7/f11 has a very impressive detail, sharpness comparable to canon and nikon as long as you do not get off at RT. vignetting at 12mm this is easily corrected in PP so it is best to take in raw, copy in my possession has a good nitidezza.rnSe not taken mainly in notturana photo is a zoom wide angle lens which I highly recommend for both performance and the cost . rn |
 | sent on 04 Ottobre 2011 Pros: Angle of view (ovvio!), sharpness, absence of distortion, gelatin filters internal economic (though not very practical to use), AF honest. Cons: Low light, vignetting at focal lengths below, resistance to flare is not very high when compared to canon 10-22, Sigma colors (a bit 'yellow), mass and size are not indifferent, front lens a bit' exposed despite the built-in hood. Opinion: I've had it a few weeks and replaced the canon 10-22 because I needed a wide angle lens can be used both on FF than on APS-C. The composition, for those not used, it is not always easy to shorter focal lengths. The copy I have definitely surprised me as to the absence of chromatic aberration and sharpness, always good to the corners already wide open. Too bad that to completely eliminate vignetting (high to 12mm) should be closed to at least F8. If you want a wide angle pushed anyway, I can not recommend it! |
 | sent on 26 Settembre 2011 Pros: Distortion, Angle, sharpness Cons: Size, no screw-on filters, variability of the specimens, brightness Opinion: I've had five of the last 12-24 seems to be going pretty well (from corner to corner) on 5d2 produces incredible images, it is not easy to "manage" it may be much closer to the subject to be photographed, to be used mainly by f / 8 f/11 (preferably with a tripod in "bubble"), after which offers breathtaking images, you can use the filters in gelatin filter holder in the rear, the AF is accurate, not lightning, but precise, AC correctable in post- production, there is nothing more wide (linear) for Canon ... My go so well I sold the 16-35L II ... |
 | sent on 24 Settembre 2011 Pros: very sharp, a little flare, distortion absent Cons: dim Opinion: Excellent career goal, with a high angle. In some cases, loses its sharpness in the corners. In practical use it is easy to frame portions with brightness very different from each other, because its angle covers a wide area. Practically assnti the typical distortions typical of wide angle, very useful to be able zoom range from 12 to 24 mm. |
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