Sigma AF f/4-5.6 EX DC HSM Wide Angle Lens for Sony, 10-20mm

I have been shooting real estate photography on an APS-C Nikon D7100 with a 16-85mm lens which has worked for most applications, but in some smaller rooms, it became a bit limiting. This 10-20mm lens solved that problem. This lens paid itself off for me in the first photoshoot with how much easier it was to get set up and capture what I needed to. Bathrooms were always a nightmare because of tight spaces, but with this lens, it's no problem at all. Being just over $200 to get the extra FoV as compared to the thousands I would spend on going to a full frame body and buying lenses to match, I'd say there's a lot of bang for buck out of this lens. The fact that it starts at f/4 is no problem in my case since pretty much all of my indoor shots are done at f/6.3 & ISO ... MoreI have been shooting real estate photography on an APS-C Nikon D7100 with a 16-85mm lens which has worked for most applications, but in some smaller rooms, it became a bit limiting. This 10-20mm lens solved that problem. This lens paid itself off for me in the first photoshoot with how much easier it was to get set up and capture what I needed to. Bathrooms were always a nightmare because of tight spaces, but with this lens, it's no problem at all. Being just over $200 to get the extra FoV as compared to the thousands I would spend on going to a full frame body and buying lenses to match, I'd say there's a lot of bang for buck out of this lens. The fact that it starts at f/4 is no problem in my case since pretty much all of my indoor shots are done at f/6.3 & ISO 640. Stopped all the way down, it's still pretty darn sharp. I'm still accustomed to having VR on my 16-85mm lens, so it's not quite as good for hand held shots, especially in darker rooms and basements, but with the much wider FoV, I have yet to run into a situation where I couldn't use a tripod. I would mention that there was white oxidation on the rubber focus and zoom rings. This is easily taken off with a dry toothbrush and doing so really brought the look of the lens back to near brand new. Other than that, everything is cosmetically and functionally in great shape.

I have two of these, which I use on two different bodies (Nikon and Sigma), mainly for landscapes. Angle of view is 102.4 deg at 10mm (63.8 deg at 20mm) on a digital DX/SD frame (this lend will produce vignetting on FX), quite wide and beaten only by the Sigma 8-16 sister lens, which is 35% more expensive. Optical construction is good (3 low-dispersion elements + 3 aspherical elements). Optical performance is very good in terms of color rendition (and specifically, of chromatic aberrations). Sharpness and fall-off are good, except deep in the corners. Distortion has a rather complex pattern (turns from barrel to pincushion going from 10 to 20mm) but is tolerable overall, being mostly confined to the edges. Mechanically the lens looks cheap, as many other Sigma ... MoreI have two of these, which I use on two different bodies (Nikon and Sigma), mainly for landscapes. Angle of view is 102.4 deg at 10mm (63.8 deg at 20mm) on a digital DX/SD frame (this lend will produce vignetting on FX), quite wide and beaten only by the Sigma 8-16 sister lens, which is 35% more expensive. Optical construction is good (3 low-dispersion elements + 3 aspherical elements). Optical performance is very good in terms of color rendition (and specifically, of chromatic aberrations). Sharpness and fall-off are good, except deep in the corners. Distortion has a rather complex pattern (turns from barrel to pincushion going from 10 to 20mm) but is tolerable overall, being mostly confined to the edges. Mechanically the lens looks cheap, as many other Sigma lenses. The more recently built units have a better finish. This lens includes an HSM (hyper sonic motor) actuator, which allows it to auto-focus on motor-less bodies (e.g., the low cost Nikon DSLR bodies). Photographic performance is nice overall. I would spend more (+70% on average) only for the Nikon 10-24 f/3.5-4.5 . Unless your only photo subjects are resolution charts, you will not be disappointed with this lens.

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 ... MoreI 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!