Sigma 17-70mm f/2.8-4 DC Macro OS HSM | C review
The Sigma 17-70mm F2.8-4 DC Macro OS HSM is a premium fast 'normal' zoom for APS-C SLRs, which is designed as an upgrade for photographers who have outgrown the 'kit' zooms typically supplied with camera bodies. It was announced at Photokina 2012, as the first lens in Sigma's new 'Contemporary' category of compact general-purpose zooms for everyday photography. It's a successor to a near identically-named lens from December 2009, the Sigma 17-70mm F2.8-4 DC Macro OS HSM, but is smaller and lighter, uses revised optics, and has a new cosmetic design. Prior to this Sigma made the unstabilised 17-70mm f/2.8-4.5 DC, a lens which was very highly regarded in its time.
The latest 17-70mm offers some pretty clear advantages over the average 18-55mm F3.5-5.6 kit lens. It provides extra zoom range, being both slightly wider and usefully longer in the telephoto range. Its F2.8-4 maximum aperture range means it gathers more light - twice as much at the long end, and 2/3 stop at wideangle. This offers advantages for both low light shooting, and getting blurred backgrounds when shooting subjects like portraits. It also offers unusually close focusing to just 22cm (hence the word 'Macro' in the lens name).
The lens use Sigma's 'Hypersonic Motor' for quiet autofocus, and is available to fit Canon, Nikon, Pentax, Sigma and Sony cameras. The Canon, Nikon and Sigma versions all feature built-in optical image stabilisation, to allow shooting at slower shutter speeds than usual without image degradation from camera shake. The Pentax and Sony versions don't have OS, and rely on the camera's built-in stabilisation systems instead. (Note that the lens won't autofocus on old Pentax DSLRs that don't have the requisite electrical contacts to power the focus motor.)
The 17-70mm doesn't have many direct equivalents from the camera manufacturers - the closest is the Pentax smc DA 17-70mm F4.0 AL (IF) SDM - and offers an interesting middle ground between upgrading to an extended range zoom such in the 16-85mm class, or a fast zoom like a 17-50mm F2.8. It's also pretty reasonably priced. So is it the ideal compromise choice, or just too good to be true? Read on to find out.
- Approx. 26-110mm equivalent focal length range; F2.8-4 maximum aperture
- Available for Canon, Nikon, Pentax, Sigma and Sony mounts (APS-C/DX format DSLRs only)
- In-lens Optical Stabilization system (excluding Pentax and Sony versions)
- Hypersonic Motor (HSM) focusing
- 0.22m closest focus (0.36x magnification)
Angle of view
The pictures below illustrate the focal length range from wide to telephoto (on Canon APS-C, 1.6x).
|17mm (27mm equivalent)||70mm (112mm equivalent)|
Sigma 17-70mm f/2.8-4 DC Macro OS HSM specifications
|Price|| • $499 (US)
• £349 (UK)
• €470 (EU)
|Date introduced||September 2012|
|Maximum format size||APS-C/DX|
| 35mm equivalent focal length
|| • 26-105mm (1.5x APS-C / DX)
• 27-112mm (1.6x Canon APS-C)
|Diagonal Angle of view (APS-C)||79º - 23º|
|Lens Construction|| • 16 elements / 14 groups
• 2 FLD ("F" Low Dispersion) glass elements
• 1 SLD (Special Low Dispersion) glass element
• 3 aspherical elements
|Number of diaphragm blades||7, rounded|
|AF motor type||Micro-type Hypersonic Motor|
|Image stabilization|| • Canon, Nikon and Sigma mount versions only
• 4 stops claimed benefit
|Filter thread|| • 72mm
• Does not rotate on focus
|Supplied accessories*|| Front and rear caps
|Weight||465 g (16.6 oz)|
|Dimensions|| 79 mm diameter x 82 mm length
(3.1 x 3.2 in)
|Lens Mount||Canon, Nikon, Pentax (KAF3), Sigma, Sony|
* Supplied accessories may differ in each country or area
Jun 19, 2015
May 28, 2014
May 28, 2014
Dec 30, 2013
|Montréal Dépaneur Out of Business DP by MarioSS|
from Your City - Out of Business
|Wish You Were Here by Dutch Newchurch|
from Street musician playing
|Flight of a Puffin by cjf2|
Instagram is currently testing a major change to the app's profile layout: replacing the 3-photo across grid with a 4-photo grid... and some users are NOT taking the news well.
A report by USSRPhoto is shedding some light on the return of the famed Zenit camera brand. It seems the full-frame mirrorless camera they're working on will be made in part by Leica using components from the Leica SL.
According to a reliable Korean report, Samsung is developing a smartphone sensor that's capable of super slow motion. Translation: Samsung's next batch of Galaxy smartphones may be able to shoot 1,000fps.
This simple photograph of a seahorse and Q-tip has taken the internet by storm. We spoke to photographer Justin Hofman about how it was captured, and what it means to him.
After a massive leak last week, Profoto has officially debuted the Profoto A1: the company's first on-camera flash system that they're calling "the world's smallest studio flash."
"When the first hyperfocal distance charts were designed, someone decided that an acceptably sharp background contained some blur — enough to notice in a medium-sized print [...] After that point, nearly every other hyperfocal chart followed suit."
The Canon EOS Rebel SL2 (also known as the EOS 200D) is the company's impressively compact entry-level DSLR. Packing a 24MP APS-C sensor, DIGIC 7 processor and Dual Pixel AF, it promises a lot of bang for the buck. And while not mind-blowing, it handles most tasks very well.
Correct these four common composition mistakes and your photos will be more balanced, tell a better story, and lead your viewer's eye where you want it to go.
The rugged, compact 360° action camera Kodak unveiled at Photokina in 2016, the Kodak PixPro Orbit 360, is finally available in the United States.
iOS 11 launches tomorrow, and it'll save all of your pictures in a new high efficiency image format called HEIC. Fortunately, there's now a converter that will let you turn those photos back into JPEGs.
Photo protection company ImageRights recently released a new service that lets non-subscribers take advantage of their streamlined copyright registration system that checks for errors and fills out all the required forms for you.
What's the difference between a $200 circular polarizing filter and a $100 circular polarizing filter? Roger Cicala at Lens Rentals put six different filters through a few tests to find out.
A flurry of leaks reveal that GoPro's upcoming Hero6 will shoot 4K at 60fps, 1080p at 240fps, will cost $500, and is scheduled for announcement/release on September 28th.
Before he became the iconic director whose name we've all heard, a teenage Stanley Kubrick struck up a business relationship with New York’s Look magazine. No surprise: he was an incredibly talented photographer.
WD's new G-Technology G-Drive mobile SSD R-Series is a portable solid state option for photographers who want the reliability of an SSD in a rugged water and dust-resistant package.
Fast, stabilized and affordable is an appealing combination when it comes to lenses. With its latest 24-70mm F2.8, Tamron aims to upgrade autofocus speed and stabilization. We've got a full gallery from this updated full-frame zoom.
Photographer Clay Cook tells the story of his most ambitious photographic dream and career goal coming true: photographing A-list actress Jennifer Lawrence.
In an interview with a Chinese website, Nikon Japan's Director of Development dropped a bombshell, saying that a Nikon mirrorless camera "must be full-frame."
Here's a side-by-side spec comparison of two flagship devices with particular attention to the things that really matter – at least to people who prioritize photography features.
A month and a half after revealing the finalists of the 2017 EyeEm Awards, the photo sharing community and licensing marketplace has finally revealed the winners.
Photographer Josselin Cornou tells the breathtaking story behind two beautiful photos captured while snorkeling with humpback whales in Tonga.
The Sony RX10 IV is a fixed lens camera with a 1"-type sensor and 24-600mm equivalent lens that can shoot 4K video or stills at 24 fps, but that's not what we think is interesting about it. The addition of phase detection autofocus is pivotal to all those features.
The announcement date is set! Google will reveal their next generation Pixel phones—their response to Apple's shiny new iPhone X—on October 4th. Let the smartphone camera wars begin.
Sony just debuted three palm-style 4K camcorders that steal a bit of speedy phase detect autofocus technology from the company's RX10 IV. In fact, they kind of improve on it.
Earlier today, NASA's Cassini spacecraft plunged into Saturn's atmosphere, ending a 20 year long mission. Here are 21 of our favorite photographs captured by this incredible machine and its makers.
Fans of film photography should keep an eye out for the widespread theatrical release of Kodachrome, a movie staring Jason Sudeikis about the final days of the iconic film stock.
Photographer Manny Ortiz breaks down the pros and cons of shooting natural light vs off-camera flash, and explains why he chooses to shoot one, the other, or both in any given situation.
A leaked product page and a bunch of leaked photos shows Profoto is preparing to release its first ever speedlight: the Profoto A1 Air TTL
The Yashica camera brand disappeared in 2003, but a new teaser video and website hint at a comeback. Excited?
Western Digital just debuted a new, higher capacity WD Gold internal hard drive. The new drive offers 12TB of storage and class-leading reliability to the tune of a 550TB/year workload rating.