The Sigma 8-16mm F4.5-5.6 DC HSM is the only one of its kind. This is the first ultra wide zoom lens with a minimum focal length of 8mm, designed specifically for APS-C size image sensors. It has an equivalent angle of view of a 12-24mm lens when used on digital camera with an APS-C size image sensor.
Sigma's new FLD glass elements, which have the performance equal to fluorite glass, compensate for color aberration. One hybrid aspherical lens and two glass mold elements give excellent correction for distortion and astigmatism.
An inner focusing system produces high definition images throughout the entire zoom range and the Super Multi-Layer Coating reduces flare and ghosting while superior peripheral brightness ensures high contrast images throughout the entire zoom range.
HSM ensures quiet and high speed AF as well as full-time manual focus capability. It has a minimum focusing distance of 9.4 inches throughout the entire zoom range which allows photographers to emphasize the subject by creating exaggerated perspectives. This lens has a compact construction with an overall length of 4.2 inches and a maximum diameter of 2.9 inches and is perfect for shooting landscape photography, architecture, building interiors, photojournalism, wedding photography, group pictures and more.
Please Note Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
A question was sent to me about using this lens on a Nikon D-90...I have a Nikon D-80 & 7000, and love this lens for both. I've used it on landscapes & cathedrals and while the edges are curved, simply crop that part out. I do not find it has a fisheye effect. I have only used it outside in sunshine & cloudy skies so I can't review it for indoors. I would recommend it if you are looking for an ultra-wide lens for your bag.
Very nice lens. Focus ring is a bit tight but will hopefully loosen up.
Very sharp to the edges, even wide open. Replaced a Tokina 11-16 that need to be stopped down to f/5.6, so no lens speed lost. On the downside, it can't focus infrared, which was important to me. Still a keeper though.
I was a little nervous buying this. I do photography strictly for fun. I am not a pro. I wanted a lens with more of a wide angle than my 28mm. I took this to Cape Cod shortly after I received it and got some great shots of the ocean.
Ordered new lens. Received refurbished lens. Returned refurbished lens. Received refund. Out cost of shipping both ways.
If you're in the market for a very wide angle zoom, this one is certainly worth considering. While there is distortion, that's to be expected with this type lens. The images it produces are, in a word, sharp. Its maximum f-stop tends to make shooting dim interiors difficult without a support
I studied the rave reviews and looked at plenty of examples on-line, so I was disappointed when my lens showed extreme curvature of field at the widest setting. In other words, I could have sharp focus in the center or at the edges but not over the entire image. This problem was actually more pronounced on the the right side than the left. None of the reviewers mentioned this issue, so I returned it. I am still convinced that this is a potentially great lens. if you are looking for the widest possible view for an APS chip camera, there is not other choice. The lens also has a nice finish and a good solid feel.
I use it for almost everything. I love the depth of field. so far nothing I don't like about this lens
I tried the tokina 11-16mm and the focus was soft on that copy so I returned to adorama. When I thought about it, the sweet spot on a lens forces you to stop down anyway so I decided to try the sigma 8-16mm. Very good lens and a better fit for what I am going to use it for mostly which is landscape/vacation photo's and when I need low light permormance indoor's I will just use a tripod.
Just received this lens a few weeks ago. Used it at an outdoor wedding in upstate New York. Photos turned out great. Looking forward to taking this lens on an upcoming trip to San Francisco and Yosemite NP. Lens works well on my Canon 7D.