Sigma 10-20mm F3.5 EX DC HSM. This super-wide angle lens has a maximum aperture of F3.5 throughout the entire zoom range. With its wide angle view from 102.4 degrees it can produce striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject.
Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction.
The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures a quiet and high-speed auto focus as well as full-time manual focusing capability.
This lens has a minimum focusing distance of 9.4 inches (24cm) throughout the entire zoom range and a maximum magnification ratio of 1:6.6.
The lens design incorporates an inner focusing system which eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood and polarizing
I noticed I reviewed this lens back in 2007, but since have moved entirely to FX and had given this lens to my daughter. This week, I decided to buy a new D7200 as a fun lightweight vacation camera and knew I needed to re-purchase this Sigma 10-20 f/4-5.6 lens because my daughter won't give mine back. Coupled with an older Tamron 17-50 f/2.8, these will be the only DX lenses I'll need to go with my huge selection of FX glass. There's a reason there is such a huge cult following for this Sigma 10-20 f/4-5.6 wide angle and is the reason I am re-buying it. It is just a superb example of this kind of lens. It's very sharp and fairly distortion free. It's 10mm wide end gives me that huge 100 degree field of view I love so much over the years. When used correctly, you can really get in tight with foreground elements while framing the background landscape elements, producing lovely images. The glass is sharp enough to take advantage of today's 24 mp camera sensors providing you do your part. All in all, I highly recommend this lens and the fact that it's so inexpensive is an added bonus.
This lens is more than I ever expected. The focal lengths are perfect for property photos and a fast lens correction in Lightroom puts everything into place. I love the fixed 3.5 and the 10mm. I have no problems with the SB800 flash providing enough light and coverage. The 82mm lens size is a lot of exposed glass so none of my other filters fit. Get what you need for filters when you order the lens so your ready to go when it arrives.
landscape shooting, interiors, perspective shots. nice solid quality, no complains
Over the past few months, I have encountered several situations where I needed a wider angle lens than my basic 18-55 lens. In looking at the available lenses, including reviews, this lens looked like a very good lens, in terms of "bang for the buck". I've had it for a couple of weeks now, and have used it exclusively on several walking trips. I've not been disappointed. You have to be careful with image distortion at the very wide end (typical of very wide angles). So far, I haven't experienced any serious vignetting, but I tend not to shoot with the lens wide open most of the time. It does create some interesting angle distortion, but again this is typical of the wide angle. This lens isn't quite as fast as the newer Sigma lens, but so far, I haven't found that to be an issue. The lens appears to be well made, and works nicely with my Pentax camera, and at less than half the price of the comparable Pentax 12-24 lens. The autofocus speed has not been a problem, since most objects I shoot with this lens aren't moving very fast (or at all!)
This lens is very sharp in the center and corners at all apertures except 3.5 where the corners seam a little softer. The only real defect I see is somewhat high CA distortion in the corners but since PS and Lightroom 5 have such good tools to take care of this it is no longer a big problem. The extra wide view on the crop sensor cameras is great.
Most of my photography and videos are done in conjunction with magazine stories and books, and because most are about outdoors or environmental subjects I often find myself in very tight quarters. The Sigma 10-20 replaced a 12 mm prime lens and has been great for things like photographing a dove sitting on a nest inside a porch light fixture, three fishermen landing a salmon in the cramped cockpit of a 20-foot boat and bats inside a small cave, where I wanted to get as much of the cave in the image as possible. I was surprised by the difference that an additional 2 mm makes. I also love the HSM focusing system, which is virtually silent. You never hear motor noise on the videos. What's not so great? The f3.5 maximum aperture, but I'm not complaining, since lenses that offer the same image quality and f2.8 are at least double the price.
I use this when I have a limited amount of room to work with. If you aren't familiar with ultra-wide lens, you need to know you can photograph an entire firetruck from about 1 foot away from the front bumper. Very useful when photographing cars, boats, tractor, and the inside of homes if you do real estate. This lens is very sharp if used properly. If outdoors, use the hood. There is no image stabilization on this lens, so you need to use your rule of thumb on shutter speeds or a tripod.
I have been using lenses this wide since the Voigtlander 15mm f4.5 came out for rangefinder cameras in the mid-late 1990's. I have always liked fisheye and rectilinear super and ultra wide angle lenses. Lenses like this are very useful for shooting tight interiors in cars, boats, aircraft, and ships. And these are fantastic for showing a small room in one image. This is also a very dramatic lens to use in video. This version has surprisingly little problems with vignetting. And while they naturally have significant distortion, even in a rectilinear lens, in certain situations, they can also actually "straighten" wide perspectives. This lens, the f4-5.6 version and the Sigma 8-16mm all are similar in performance. I extensively field tested both 10-20mm Sigmas on my Pentax K3, and found them all to be up to producing good IQ up to about 18-20" wide, wider if you crop back the corners, or have dark or undefined detail in the corners. With some scenes, high detail near the corners and edges will blur, distort and sometimes smear. Note that that is not unusual at all for rectilinear lenses of 100 degrees or more. Even the full frame 14 and 15mm lenses do it. As comparing this lens against the f4-5.6 version, this lens vignettes very little, even wide open. You will get more vignetting from the f4 version wide open, but it tames down at f8. Central IQ is very good, not up to prime territory but still very useful for anything up to certainly 18-20 inches wide. The particular f3.5 that I got did not resolve quite as well as the f4-5.6 version I was also using. The impression I got of the pair I tested is that the f4-5.6 was a little better overall IQ, however, since Sigma lenses vary, your results could vary from this. For example I have field tested three different Sigma 8-16mm lenses, two were really very good, one was poor, but the best of the two good ones was nearly the performance of my 15mm Voigtlander near the edges (not at center). That one came from Adorama and it's a winner. For comparison, the 10-20mm f4-5.6 performed as well in most scenes as the 8-16, and a little better in resolution and sharpness over this model. However, this f3.5 version exhibited less chromatic or linear aberrations and very little vignetting than the f4-5.6. If you are getting the lens to shoot interiors, this shouldn't be an issue except at a very high contrast edge. The aberrations will show up, if they do, in high contrast edges, such as tree limbs against a blue sky. If your camera can use the HSM focusing motor, this is a really nice lens with more even lighting across the entire image area than the f4-5.6 If that is of less concern, the f4-5.6 version is a real bargain. I actually recommend all three as there really isn't any competition in the 8-10mm 110 + degree range on an APSc sensor Pentax, Canon, or Nikon that performs as well. Too bad the Sigma 8-16mm is not available in Pentax mount. This lens is best at f8 to f11 (also true of the other two), though mine did better than the siblings at f5.6
I shoot as a semi-pro with a Canon 7D. The studio I work for does all manner of photography, from weddings/special events to real estate, fashion, school portraits, etc. I bought this lens to use for weddings, real estate, and for my own artistic work, like landscapes and urbex/architecture. I looked at the Canon as well, and for me, this was a better value. It is very sharp, and the auto-focus is quick and quiet. At 10mm, it does produce barrel distortion, but that can be fixed in post, or it can be left alone for that effect, which looks nice for certain things anyway...at 20mm, it has very little noticeable distortion. Two things to be aware of with this one are lens flare, which is easy with such a wide lens ( just compose accordingly!)and the slower f/4-f/5.6...If you need or want better low light ability, you'll have to spend a bunch more. I just did a wedding with this, ( and several other lenses, of course!) and with my external flash it performed beautifully, so for me, that speed isn't worth the extra $$$. I have also done night shoots on my tripod and gotten similarly great shots with it. I could have rated it a four for those reasons, but for WHAT IT IS, it really is an awesome lens. If you need wide and shoot on a cropped sensor, try this one!
The perfect landscape lens and special effects. The weight is well balanced with the Cannon Eos 60D. It feels like the lens and camera body is one really one unit, not top heavy.