Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax

Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax

Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax

B&H # SI1770284DCP MFR # 884109
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Product Highlights

  • Aperture Range: f/2.8-22
  • Hyper Sonic AF Motor
  • Macro Capabilities
  • Compact and Lightweight TSC Construction
  • FLD, SLD, and Aspherical Lens Elements
  • Super Multi-Layer Coating
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Configuration: Lens Only

Lens Only With Landscape Kit

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Sigma 17-70mm f/2.8-4.0 overview

  • 1Description

The Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax is a standard zoom lens designed especially for DSLRs with APS-C-sized image sensors. This lens has a 35mm-equivalent focal length range of 25.5-105mm, providing wide-angle to portrait-length angles of view for use in everyday shooting situations.

This lens features a fast f/2.8-4 maximum aperture to help better control your focus plane and to aid in low-light shooting. The Hyper Sonic AF Motor delivers fast, smooth, and quiet auto focusing that greatly benefits video applications. The integration of two FLD, one SLD, and three aspherical lenses in the construction helps to reduce the effects of chromatic and chromatic axial aberrations, and Super Multi-Layer coated elements help to increase contrast for sharp, clear imagery.

As part of Sigma's new Contemporary line of lenses, this lens is designed using Thermally Stable Composite (TSC) materials to help reduce the overall weight and size of the lens barrel by about 30% without compromising on optical integrity, rigidity, or overall durability.

Contemporary Lens Line
This lens is the first lens produced as part of Sigma's Contemporary line; deeming it lightweight and compact while still exhibiting high optical performance. This lens' wide range of focal lengths makes is suitable for a variety of shooting applications. Utilizing an optimized distribution of optical and electronic elements, the size of the lens barrel is able to be reduced in size by approximately 30%. This reduction in weight is also afforded in part through the use of TSC materials in the barrel construction. This material offers high durability and rigidity but with less bulk than metal components.
Macro Shooting Capabilities
This lens features a maximum magnification of 1:2.8 and a minimum focus distance of 8.7" / 22cm, giving a working distance of just 2.2" / 5.5cm when shooting at the 70mm focal length.
Optimized Lens Construction
Two FLD (F Low Dispersion) glass elements, one SLD (Super Low Dispersion) glass element, and three aspherical glass elements, including a double-sided aspherical lens, are integrated into the lens' construction to help improve overall image quality. The combination of these elements provides a reduction in both chromatic and axial chromatic aberrations throughout the focusing and zoom ranges. A Super Multi-Layer Coating is also applied to lens surfaces to reduce the appearance of lens flare and ghosting, which helps to maintain image contrast and color fidelity when working in strong lighting conditions.
Hyper Sonic AF Motor
The HSM (Hyper Sonic Motor) provides fast, quiet, and smooth auto focusing that is well-suited for use with video applications. Autofocus is not supported for Pentax ist* and K1000D DSLRs, however, manual focus operation is possible.
Other Features
  • A large maximum aperture of f/2.8-4 helps with low-light photography and also offers greater control over your focus plane for selective focus shooting.
  • A brass bayonet mount provides reinforced durability at the connection point between the lens and your camera.
UPC: 085126884611
In the Box
Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax
  • Lens Hood LH780-03
  • Front Lens Cap
  • Rear Lens Cap
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects.
  • Table of Contents
    • 1Description

    Sigma 17-70mm f/2.8-4.0 specs

    Performance
    Focal Length 17 - 70mm
    Comparable APS-C Focal Length: 25.5 - 105 mm
    Aperture Maximum: f/2.8 - 4
    Minimum: f/22
    Camera Mount Type Pentax K
    Format Compatibility DSLR (APS-C Sensor)
    Angle of View 79.7° - 22.9°
    Minimum Focus Distance 8.66" / 22 cm
    Maximum Reproduction Ratio 1:3
    Optical Design 16 Elements in 14 Groups
    Diaphragm Blades 7
    Features
    Image Stabilization No
    Autofocus Yes
    Tripod Collar No
    Physical
    Filter Thread Front: 72 mm
    Dimensions (DxL) 3.11 x 3.23" / 79 x 82 mm
    Weight 16.40 oz / 465 g
    Packaging Info
    Package Weight 1.45 lb
    Box Dimensions (LxWxH) 6.0 x 4.2 x 4.2"

    Sigma 17-70mm f/2.8-4.0 reviews

    17-70mm f/2.8-4 DC Macro HSM Lens for Pentax is rated 4.4 out of 5 by 19.
    Rated 4 out of 5 by from Better Than Expected User reviews of the Sigma 17-70 suggested that the lens is lacking in image quanlity at its widest setting, but I have found little to fault at any focal length. Focus is reasonably fast (and silent), generally accurate, and sharpness is good. I have not fully wrung out the lens yet so I am allowing 4 stars (4 1/2 would be better, but I can't do that). The alleged macro capability is not what one might expect: A close working distance does not tranlate into a really large image. One should not buy this as a dedicated macro lens. So far, however, I have been pleasantly surprised by the performance of the lens. Jeff
    Date published: 2014-05-27
    Rated 5 out of 5 by from What a fine lens! I have been shooting Pentax for 25 years using M, A, FA, DA, and DA L, lenses. I have Tokina and Sigma autofocus lenses as well. This new Sigma Contemporary lens is amazing in autofocus speed and quietness because of the HSM. All of my other lenses are manual or screw drive focus. This Sigma will spend more time on my new K-30 with the Pentax DA 18-250 going back on the K-10d. Quality of pics and macro are excellent. I also have a Sigma EX 105 macro. My only complaint is that it does not come with a case.
    Date published: 2013-08-04
    Rated 5 out of 5 by from Sharp! I'm very pleased with this lens, mostly because it's sharp across all focal lengths. Some are better at the wide end while others are better at the long end (most zooms sharp in the mid lengths), but this one doesn't seem to sacrifice one for the other. Distortion is relatively low for a 4x zoom, too. Build qualaity is high. If buying in the Pentax mount, be sure the firmware is current or be sure to have it updated. There was a bug which originally messed up the Pentax shake reduction at the very wide end. The firmware update totally resolved the issue.
    Date published: 2015-02-28
    Rated 5 out of 5 by from Much better than expected. I purchased the new Sigma to fill my need for a longer zoom range than my Pentax 16-45 F4 zoom. This defiantly filled my needs. In comparison to the Pentax lens, the only weekends is at 17mm - where the Pentax shines (with the exception of CA). This is the first Sigma lens the I have really liked.Pro:Great zoom rangeGreat build qualitySharp images from 24mm upFast silent focusingLow chromatic aberrationsFirm but well dampened zoom ringCon:Soft corners at 17mmUsed on a Pentax K5iisI have and will recommend this lens to friends
    Date published: 2013-08-26
    Rated 5 out of 5 by from Love it so far. I've had this a relatively short time, but it has already become my default lens. Very sharp, a little heavy, but no big deal. The only thing that bothers me significantly is the hassle involved going to manual focus. I don't know what the proper term is, but with my Pentax lenses I can do a quick auto focus then go to the focus ring without changing anything and fine tune the focus... I miss that.
    Date published: 2014-05-30
    Rated 2 out of 5 by from dissapointed I don't know why, but I had a different experience than most others here with the sigma 17-70 contemporary. First I tested it for sharpness against my 18-55 WR kit lens by shooting a test sheet/chart with each lens (using a K-30). The sigma contemporary was sharper, noticeably sharper, but not by leaps and bounds. I then shot photos around the neighborhood, the same scenes with both lenses. I was surprised to see that the kit lens was consistently sharper than the sigma! I don't have an explanation (my shots were compared at the same f stops and shutter speeds). I was also surprised to observe that the color on the sigma was much duller than the color on the kit lens. The kit lens can sometimes take colors that are a little too color saturated, but I felt the kit lens did a better job with both sharpness and color with my neighborhood photos. Given that the kit lens definitely has the advantage when it comes to price and weight/size, I sent the lens back. I know the sigma has the advantage of having more focal length on the wide angle and telephoto ends of the spectrum and that the sigma lets about twice the light into the camera as kit lens. I also know that many who prefer the sigma over the kit lens know much more about lens than I do and have more educated eyes, so I make no claim that the kit lens is the better lens (I suspect it isn't). I saw wonderful photos from the sigma online. Mine were not wonderful. However, I thought it best to report my true experience.
    Date published: 2014-02-19
    Rated 5 out of 5 by from Excellent performance, quality consruction and low cost. I purchased this lens to shoot wildlife (squirrels, birds,etc.) in a small city garden to produce calanders, note cards and post cards. The zoom range is perfect for the confined apace. For a lens in this price range, the construction is solid, the zoom is well dampened and image quality is very good across the range and excellent between f5.6 and f11. I have only had this lens for a month or so but at this point it is far better than the Pentax 18-55 kit lens both in image quality and construction and comparable in image quality to the Pentax primes (21mm Limited, 50mm, and 200mmDA*) I regularly use. Auto focus is fast, quiet, and accurate, a real asset when trying to capture rambunctious critters.
    Date published: 2015-09-04
    Rated 3 out of 5 by from Sigma 17-70mm F/2.8-4 DC HSM C Sharpness, color, macro, these are all nice. Mine has an issue with flare and ghosting. Sent it back to Sigma on warranty, but they did'nt find anything wrong, so I have the same issues.For the price I payed, I should have stayed with the kit lens and buy the 55-300mm wr lens.It was $$ in canadian $, not cheap for that kind of problem. So i'm rather disappointed, because sometimes you miss shots for no reason, because the kit lens has no flare issue.Have a nice day.
    Date published: 2016-03-09
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    Sigma 17-70mm f/2.8-4.0 Q&A

    Sigma 17-70mm f/2.8-4.0 accessories

    Sigma 17-70mm f/2.8-4.0 add-on savings

    The more you Add-On the more you save (when you buy the Sigma 17-70mm f/2.8-4 DC Macro HSM Lens for Pentax)

    Designed for use with:

    • Pentax K-3 II
    • Pentax K-70
    • Pentax K-S2
    • Pentax KP
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