
Best Price Ultra wide-angle lens is a lens whose focal length is shorter than the short side of film or sensor. Now the lower price than the original Click here to see this before timeout.
Best Buy:Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras
Product Description
The large angle of view of the Sigma 12-24 4.5/5.6 EX DG ASPH Zoom (122 degree super wide angle of view at 12mm along the diagonal axis) is ideal for shooting indoors as well as landscape photography. It has a variable angle of view from 122 degrees to 84.1 degrees. Four Special Low Dispertion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. Two pieces of Glass Mold and one-piece Hybrid aspherical lenses offer excellent correction for distortion as well as all types of aberration. By effective arrangement of lens elements and advanced technology this lens has Super Compact dimensions of 100mm full-length, and 87mm Maximum Diameter. It is equipped with an Inner Focusing System that will keep the length of the lens unchanged, while controlling aberration. The models which are equipped with the HSM (Hyper Sonic Motor) System (only in Nikon, Canon and Sigma Camera Mounts) offer Full Time Manual Focusing. It has a minimum focusing distance of 28mm at all focal lengths. This lens is equipped with an integral Petal-Type Hood, to block out extraneous light.Features: First Zoom lens that has 122 degree Diagonal Angle of View at 12mm Focal length ! Variable Angle of View, from 122 degrees to 84.1 degrees Equipped with 4 piece SLD glass elements and 3 pcs. Aspherical lenses, producing a high level of optical performane. Inner Focusing System insures the length of the lens remains unchanged, whilst controlling Aberration. HSM System (in Sigma Nikon & Canon Camera mounts only) with Full Time Manual Focus. Minimum Focusing Distance of 28cm at all focal lengths. EX DG Series , the Ideal lens for Digital SLR Cameras Lens Technology Explained: ASP (Aspherical Lens)The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size. HSM (Hyper-Sonic Motor)This lens uses a motor driven by ultrasonic ...
- Ultra wide angle zoom lens offers 122 degree view along the diagonal axis
 - 12-24mm focal length
 - f4.5-5.6 maximum aperture
 - Super Multi Coating reduces flare and ghosting
 - Hyper Sonic Motor
 
Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras Reviews
Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras Reviews
|      35 of 37 people found the following review helpful    This review is from: Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras (Electronics)   Sigma has been much maligned by the Nikon-brand lens snobs, and not without good reason. The build quality and optical clarity of the average Nikon lens easily trounces the average Sigma.This particular Sigma lens has been in my bag since 2004 (three years now) and has performed flawlessly in dusty, humid, and rainy conditions. I can't say that about every Nikon lens I have owned. Don't get me wrong-- this is not a flawless lens. It is weather sealed enough, but I doubt it would survive being dunked in water the way some (but not many) Nikon lenses would. It focuses faster than many Nikon lenses, but slower than competing Silent Wave Motor Nikons. It is quieter than any non-SWM Nikons, and almost as quiet as SWM. It focuses as well as any Nikon f/4.5-5.6 lens in similar lighting conditions. Now for the flaws. It has more chromatic aberration than Nikon's 12-24mm DX and 14-24mm FX lenses. It isn't as sharp, especially near the edges. But if... Read more  15 of 15 people found the following review helpful   By   Nick (DC) -  See all my reviews  This review is from: Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras (Electronics)   I use this lens on a full frame camera (D700) - so the review is geared for full frame users. There are wider choices (with relative advantages / disadvantages) on the cropped sensor side - don't get this lens for DX.Pros: - the widest rectilinear lens for full frame. The difference in coverage between 12 and 14mm (the next closest candidate, at least for Nikon) is HUGE (from looking at it - at least 15% - 20% more on 12mm). - vibrant color rendition. I don't know why this is - but compared at the same settings with the 24-120 and a 50mm 1.8, the reds rendered by Sigma are deeper and more vibrant. - relatively light - only a pound (compare at an arm breaking 2.1 pounds for Nikon 14-24) - good build construction. - relatively inexpensive. Cons: - Horrible vignetting. The corners are significantly (2+ stops) darker than the center. - Corner softness at any aperture (just horrible wide open) - Overall image sharpness. I... Read more  19 of 20 people found the following review helpful   By   This review is from: Sigma 12-24mm f/4.5-5.6 EX DG IF HSM Aspherical Ultra Wide Angle Zoom Lens for Nikon SLR Cameras (Electronics)   The Sigma 12-24 is an excellent ultrawide. It is very sharp with very little barrel or pincushion distortion. It is a true 12-24 fullframe with a film SLR (love it with my Nikon N80) or full frame digital slr, and effectively an 18-36 with an APS-sized sensor digital SLR. Excelleent ultrawide for architecture, landscapes etc. At 12mm though, it is so wide that you must be careful of distortion introduced by shooting off-level. This is not to say this particular lens is faulty and distorts, but would be true of any ultrawide lens with this wide degree of coverage. While I have heard much talk of supposed poor Sigma quality control, I have no qualms at all about this lens - It is sturdy, tough, smooth and has performed flawlessly for me for years.   |  
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