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|Filter thread||82 mm|
|Dimensions (dxl)||Approx. 3.4 x 3.5" (8.64 x 8.89 cm)|
|Weight||1.14 lb (520 g)|
|Minimum focus distance||9.4" (23.88 cm)|
|Angle of view||102.4° - 63.8°|
|Maximum reproduction ratio||1:6.6|
|Focal length||10 - 20 mm|
|Camera mount type||Pentax K|
|Format compatibility||Pentax Digital (APS-C)|
Following in the footsteps of Sigma’s full-frame 12-24mm DG zoom, the 10-20mm DC version has a lot to live up to. What Digital Camera's Sigma 10-20mm EX DC HSM review sees if it lives up to the hype...
Good all-round performance
A wide-angle zoom is definitely the way to go when photographing in this type of situation, whether it’s a car show, antique show, or anywhere that’s crowded or the subject is large, such as architecture.
Quality; true cost of lens; construction
Distortion at widest angles
The well-built Sigma 10-20mm f/3.5 EX DC HSM Lens, at review time, is one of only a few lenses in the ultra-wide angle APS-C lens class to have a fixed maximum aperture. While f/3.5 is not what I typically consider wide/fast, the fixed maximum aperture allows a constant wide open aperture exposure...
With a brighter f/3.5 aperture, the new Sigma 10-20mm lens will be better for low-light photographers. Priced at £440, does the new lens warrant the price tag?
Very good resolution, Good build quality, Excellent value, Low levels of Chromatic Aberrations
82mm filter size, Stiff manual focus ring
Sigma's widest nonfisheye and fastest ultrawide zoom, the constant-aperture 10-20mm f/3.5 belongs to the EX family of sturdily built, optically gifted Sigmas. To control multiple forms of aberration, it uses three low-dispersion glass elements and four aspheric elements-the most of any Sigma.
Sigma has made some dramatic improvements in this constant-aperture version of the 10-20mm lens, and has made them where they count: at the 10mm end of the focal length spectrum, where (arguably) the majority will probably use this lens.
Once the APS-C crop factor has been taken into consideration, the lens offers an effective focal range of 15-30mm.
This Sigma wide-angle comes in at a very reasonable price for what it is and for its features. It’s also available for plenty of lens mounts. This lens is considered by some photographers as the benchmark for APS-C wide-angles, though our tests suggest this may not now be the case.
The new Sigma 10-20 mm f/3.5 EX DC HSM leaves us with mixed feelings. The build quality of the lens is certainly excellent, distortion is a little high at the wide end (but excellent for the rest of the zoom range), there's also a fair amount of vignetting and CA, but that's typical for this lens...
Sigma's original 10-20mm f/4-5.6 ticked pretty much all the right boxes, and rapidly became a top seller for users of Canon, Nikon, Olympus, Pentax, Sigma and Sony bodies alike.
I shoot real estate photography for web and publication marketing. I have shot thousands of properties and over 50 magazine covers.I needed a lens with a wider view and as little distortion as possible. This lens did the trick.I use the Sony Alpha cameras.
The lens has excellent clarity, and the extra items are wonderful. I love the travel bag! The crossbody style has an off-side fastener, which adds stability. Attached is an unedited shot with this lens and a Nikon 7200.
SLR Gear gave an accurate review regarding image quality. A little soft around the edges at the 20mm end, otherwise excellent. Most of the time you're at the wide end of this lens anyway and that's where it excels.
Silent, fast auto focus, image quality at wide end, build, handling, low distortion for a fish eye, constant aperture essential for video
This is an excellent lens for the money. At 10mm (F3.5( it was slightly soft but after 11mm the images were very sharp (F.4 and up). The quality and feel of this lens is really nice. It is a nice fit and nice price for my 7D.
Light lens compared to my 16-35mm; nice color and decent low light performance; nice build quality
Little soft at 10mm but sharpens quickly above 11mm.
Sharp images across it's range. Quality build. Worth every cent...
Beach Camera did a GREAT job in getting it to me QUICK!!! Thanks!
Fast / accurate auto-focus, Strong Construction, Durable, Lightweight, Rugged, Consistent Output, Easily Interchangeable
The lens works exactly as I expected.
I use this on my D750 and it's a great little lens. I bought it for my trip to St. Augustine and it worked out well.
Great addition to my lens kit. Ticks all the right boxes.
I used this the first time for some night photography. It worked pretty well. It seems a little noisier than my 18-270 pentax(Tamron?) lens. Took it to the high mountains last Sunday. Good results. Definitely soft corners at f3.5. I need more time for experimentation.