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Sigma 18-35mm F/1.8 DC HSM ART Lens for Pentax Digital SLR Cameras - USA Warranty

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Sigma 18-35mm: Picture 1 regular $799.00

About Sigma 18-35mm

Sigma 18-35mm F/1.8 DC HSM ART Lens, Truly a revolutionary product. The Sigma 18-35mm 1.8 DC HSM is the first wide-angle to standard zoom lens to achieve a large aperture of 1.8. Designed specifically for APS-C sized sensors, the Sigma 18-35mm 1.8 translates to 27mm-52.5mm on 35mm camera. Tapping into Sigma's long history of lens innovations, the 18-35mm 1.8 DC HSM incorporates a wide glass molded aspherical lens with Special Low Dispersion (SLD) glass to compensate for aberrations and curvature at the widest angle. Internal focusing and zooming allows for more usability and functionality.

The Sigma 18-35mm is ideal for landscapes, portraits, still life, snap shots, casual, and close-ups and the Hyper Sonic Motor (HSM) ensures smooth, fast and accurate autofocusing. The use of Thermally Composite Material (TSC) reduces size and weight but increases the lens durability. Its new Global Vision design works with its compatibility with the Sigma USB dock for further customization. A 9 blade rounded diaphragm also creates beautiful background blur.

The Sigma 18-35mm 1.8 DC HSM is a new benchmark in photographic history and a must have for every camera bag.

USB Dock Compatibility
Sigma has developed special software (SIGMA Optimization Pro) that can update the lens firmware and adjust parameters such as focus. (USB Dock is sold separately)

Sigma 18-35mm Features

  • This lens is part of Sigma's Art line; deeming it well-suited to creative image making due to its large, constant f/1.8 maximum aperture and ability to produce aesthetic bokeh by way of a nine-blade circular diaphragm
  • One aspherical lens element, as well as the incorporation of SLD glass, help to minimize the appearance of distortions and aberrations throughout the zoom range and provide clear imagery with enhanced sharpness
  • The Hyper Sonic Motor provides fast, quiet and smooth auto focusing that is well-suited for use with video applications. This AF motor can also be manually overridden at any time by rotating the focusing ring, giving you the ability to fine-tune image sharpness through manual focusing
  • Constructed using a TSC compound material, this lens is lightweight while also exhibiting notable durability and resistance to environmental changes
  • An internal focusing and zooming mechanism helps to maintain a consistent overall lens length and a non-rotating front ring facilitates more efficient use of circular polarizers
  • Compatible with Sigma's USB Dock and Sigma Optimization Pro software for fine-tuning your lens' performance, updating its firmware and better suiting it to your needs

Sigma 18-35mm Specifications

Focal Length
18 - 35 mm
Comparable 35mm Focal Length: 27 - 52.5 mm
Aperture
Maximum: f/1.8
Minimum: f/16
Camera Mount Type
Pentax K
Format Compatibility
Pentax Digital (APS-C)
Angle of View
76.5deg. - 44.2deg.
Minimum Focus Distance
11" (27.94 cm)
Maximum Reproduction Ratio
1:4.3
Groups/Elements
12/17
Diaphragm Blades
9
Image Stabilization
No
Autofocus
Yes
Filter Thread
Front: 72 mm
Dimensions (Dell)
3.07x4.76" / 7.79x12.09 cm
Weight
1.78 lbs / 0.80 kg
Mfr #
210-109
SKU
SG1835DCPX

Sigma 18-35mm Reviews Powered by TurnTo®

Reviewed by 2 customers

(2 of 2 customers found this review helpful)

 
5.0

Clear as Day -- Even at 10pm!

By

You've found the Night Gallery with this one! In fact I even think that the picture quality overall even surpasses Sigma's 2.8 DG Series, which includes a faster focus in my opinion! And, that's a "good thing" for action shots! I never saw such clarity and performance from a Sigma lens like this one! It's almost like putting on a pair of night vision goggles, as well as delivering remarkable bokeh for day-time close-ups without any effort! You can definitely throw your tripods away. You don't need them anymore for this one! It's that fast! Since the time I put this lens on my Pentax K-3, I never removed it except once for my K-50! It's hard to differentiate even with JPEG at "L" 3-star quality! And, for a compressed image, that's pretty remarkable! I only wish that Sigma would make this same lens in a 1.4!

(1 of 1 customers found this review helpful)

 
5.0

The world's best zoom lens

By

I waited (impatiently) while Sigma cranked out the Canon and Nikon versions, finally releasing the Pentax mount in July. I'm no doubt among the first Pentax owners to get a copy, and I will start by saying it's an even better lens than I'd hoped, based on many reviews, (owner and professional), that I'd read about the other mounts. Let's cover the bad stuff first, because it won't take long: it's heavy. And on my beefy K-3, that's a lot of weight around your neck. It also suffers from lens flare more than my other lenses. This is a bit annoying for me, as I sometimes like a bright sun within my composition. But I can either work around it or use a different lens for those rare situations. Finally, OK - I do wish it went to, say, 50mm. But it probably wouldn't be as good a lens that way. I've learned using my 18-55mm kit lens that most of the time I'm working well shy of the long end. So not much of a compromise there, really. There - that's the bad news - all of it. This lens is sharper than a Robin Williams come-back. While best in the middle of the range, it is so good even at its worst (fully extended) that you can retire your 35mm prime. And at any focal length short of that, it will be SHARPER than most primes. How in the heck did they DO that? The autofocus system on Pentax tends to be noisy and slow. While not super fast, this lens is quicker than my other lenses, and it is church mouse quiet. So far, too, it's accurate, and I am not having trouble acquiring focus in low light at f1.8, as some have experienced with other mounts. While barrel distortion and pincushion are a necessary evil with zoom lenses, (and there's a bit with this one), edge and corner sharpness are strong, and vignetting is low. Stopping down even a little bit from 1.8 all but eliminates any issue. Combined with superb clarity, this lens is simply one of the best available for Pentax, and probably for Canon or Nikon, as well. If you're thinking about shorter primes, save some money long term and start with this amazing zoom. The fastest zoom ever made, Sigma impresses with their innovation, excellent construction and almost physics-defying optical quality.

Q&A

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Is this lens good for taking picture of painting?
JOSHUA S  any lens is good for taking photos of paintings. Id get a super sharp 50mm thats inexpensive but if you want a f/1.8 lens that has a great range for any occasion.
Shopper  Is this lens good for taking picture of painting?
JOSHUA S  any lens is good for taking photos of paintings. Id get a super sharp 50mm thats inexpensive but if you want a f/1.8 lens that has a great range for any occasion.
Shopper  Is this lens good for taking picture of painting?
JOSHUA S  any lens is good for taking photos of paintings. Id get a super sharp 50mm thats inexpensive but if you want a f/1.8 lens that has a great range for any occasion.
See more questions and answers

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