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Sigma 17-70mm f/2.8-4 DC OS HSM Macro C : Specifications and Opinions

Sigma 17-70mm f/2.8-4 DC OS HSM Macro C

MOUNT

This lens is available with the following mounts:

Canon EF: this lens is compatible with reflex APS-C Canon EF.

Nikon F: this lens is compatible with reflex APS-C Nikon.

Sony A-mount: this lens is compatible with reflex APS-C Sony A-mount.

Pentax: this lens is compatible with reflex APS-C Pentax.

Sigma SA: this lens is compatible with reflex and mirrorless APS-C Sigma SA-mount.

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Specifications
Focal lenght	17-70 mm
Angle of view	80.5 - 23.2° (equivalent to a 26-105mm in Fullframe 24x36mm format)
Format	APS-C
Max. aperture	f/2.8-4.0
Aperture blades	7
Lenses/Groups	16 elements in 14 groups
Min. focus distance	0.22 meters
Reproduction ratio	0.35x
Features
Zoom type	Ring, external
Stabilization	Yes (built in lens)
Focus	Lens AF motor (non-ultrasonic)
Internal AF	Yes
Full Time MF	No
Built and notes
Tripod ring	No
Extenders	No
Filters	72 mm
Lens hood	Yes, supplied
Weather sealing	No
Weight	470 g
Dimensions	79 x 82 mm
Buy	Sigma 17-70mm f/2.8-4 DC OS HSM Macro C, buy on Ebay

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Reviews

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Timk2

sent on August 11, 2016

Pros: Quality of build and finish; Smart appearance; Unique specification, usable at all apertures; sharpness at most settings; Handling; Stabilisation; Value; Close Up facility (it's not true macro); AF accuracy (on my example and with D7100)

Cons: Manual focus can only be engaged by switching off AF on lens and camera; Focus ring rotates (but not front element, so polarisers etc are no problem); Resistance to flare worse and less contrasty punch than with Nikon marque lenses

Opinion: Unlike the majority, standard lenses are my least used optics, most of my photos are taken at 10mm, or 300mm. But, of course, a good standard lens is essential. I originally bought the previous model secondhand for my (then) D7000 and I liked it, both the focal range, sitting within my standard kit of Nikkor 10-24mm and Tamron SP 70-300mm VC. But its wide aperture performance, especially at the edges weren't good enough for the live music photography I was doing then. So, I sold that lens and got both a Tamron SP 17-50mm f2.8, which was a brilliant little lens and a used Nikkor 16-85mm VR, which is also very sharp and great for walkabout landscapes. I came to dislike the little plastic Tamron as it was horrible to use, with its shuddering zoom action and didn't suit my big hands at all. I sold that and got a used Tokina 16-50mm f2.8 Pro, which is much better to use than the Tamron and is wider and generally performs just as well. Basically, I now needed a stabilised fairly fast standard zoom for when I am wandering about towns and landscapes before dawn and after sunset and without a tripod. The 16-85mm is still very capable but is very slow, especially at the longer end and at night for moonlit shots and fireworks, it's almost impossible to focus accurately, even manually. It's also quite tired now, being 5 years old - I will still use this lens, for bright days out. The new Contemporary Sigma is updated, both optically and cosmetically over the old one and has three special elements, so you get quite a lot of lens technology for your money. From lens tests I've seen, general opinion is that the wide end performs about as well as the previous model (sharp in the centre at all apertures, but slightly soft in corners up to about f4.5) but the longer end is much improved, meaning that even f4 at 70mm gives a fully usable crisp image, with a nice bokeh. It's a lovely lens to use, the AF working perfectly, even in almost dark urban scenes, meaning that the awkward manual focus selection is seldom needed. The extra one stop brightness over my old 16-85mm makes a lot of difference too. I did find though that against the light, the largish front element, which does not appear to have been multicoated much, does flare quite strongly against strong light. And, even with a good polariser, the colours and contrast are just not up there with the Nikon. I was also slightly worried by very strong street light sources creating a smearing effect, but trying this genre further, found that this was not so much of a problem as I previously thought. So, this nice compact lens is a good all-rounder - not quite professional enough, optically, to be used just for night shots - but still does a fair job and better when stopped down a little - not really a portrait lens (f2.8 needed for that) and not really a macro either - one-third life size is handy to have for the occasional flower head and seems to render these well too, but certainly not true macro. But, as a lens that does most things well and just as well, or even better, than the competition and considering the good value too, plus the latest and stylish design and finish, then it's a most useful lens. The OS works (on my sample) silently, to the point where I was not sure if it was working) very well too - I got perfectly sharp results at 17mm and 1/4 second! Out in the landscape, then that might be too optimistic but it certainly adds to the usefulness of the lens, which, in conclusion, is not perfect, in almost every department, but very good in all, so 9/10 from me. It's also worth noting that it's fitted with a reassuring brass mount and focus scale AND reasonable lenshood, the latter two being increasingly left out these days, in the pursuance of profit from greedy and overpriced marque brands.

Artman17

sent on June 20, 2013

Pros: Compact , well buit. Sharper than a 50mm Nikkor 1.4G at everywhere after f3.2. Smooth bokeh. Great macro. Wider at 17mm than Nikkor 18-105mm with much less barrel distortion. Effective OS , super silent focus.

Cons: For that price it should have a soft case included.

Opinion: I tried this lens first because I needed a real macro. I had the heavy 24-70mm f 2.8 Macro from sigma before and it wasn't real macro ( neither as sharp at f 2.8 as this one). With this 17-70mm I can get very close to subjects around 5-6cm and get supersharp images. Oh yes this lens is much sharper than the previous Nikkor 1.8G I had by far! Bokeh is very smooth and I also like the balanced contrast in the images. Color also is not far from what I see and quite detailed. Images have a professional look to them one has just only to worry about getting the right frame on the subject than anything else. I am thinking of the new art series prime 30mm from Sigma but this lens does it all and does it good. I predict It will stay in my camera most of the time. And with the upcoming USB Dock I believe there will be a chance of even more experimentation on how to change this lens IF needed. I shoot with Nikon D90. I recommend this lens to amature and pros as a well build and potent all-round lens in a sensible price.

The following opinions have been automatically translated with Google Translate.

Ilrobby

sent on July 19, 2019

Pros: Size and weight, good quality handyman, build quality, AF, brightness.

Cons: Front lens cap.

Opinion: It's the lens that I chose as an all-rounder on my 100D because it has a focal range that allows you to do everything while maintaining a good overall image quality, it is light and very compact, it has a great focus (my model had no front problems/ back focus) and is sharp especially in the center, a little more "pasty" at the edges. At the level of files produced I did not find any particular problems of chromatic aberrations or distortions, in case in a few clicks they are easily eliminated with any post-production program. Ultimately for lighter outputs is the inseparable companion. Only flaw (compared with the build quality of the lens) in my opinion is the front cap that protects the lens, is difficult to hook at the first shot and tends to release too easily, they could do better.

Stefano Banda

sent on June 06, 2019

Pros: Good sharpness in the center at each focal, precise autofocus (once calibrated) and quick, robust construction, compatibility with Sigma's USB-dock

Cons: Front cap and non-excellent quality lampshade, f/2.8 aperture only up to about 22 mm, reverse zoom wheel rotation, maf dial too thin

Opinion: Purchased new to replace the efficient but outdated Pentax 17-70 f/4, at the moment I can confirm all the merits described in the other reviews. The optics are very handy despite the fairly voluminous front lens, and as usual Sigma the materials are simple but well assembled and give a pleasant feeling of robustness. They scan the front cap and the lampshade, decidedly cheap and a bit "pulled away". Optical qualities are out of the question. In the middle the sharpness is very good even at full opening and a bit to all the focal points. It goes without saying that at 18 mm to f/2.8 the angles necessarily can not be very engraved (for that there is the series "Art"), but if you close to f/5.6 everything goes in place and you can count on a sharp frame up to the edges. Note that, although not a macro in the strict sense of the word, it allows you to get very close to the subject, just enough to get very interesting and impressive shots. The autofocus is quite quick and above all accurate, but I recommend investing a few extra money in the purchase of Sigma's USB-dock, you won't regret it. You'll lose a little time but in the end you'll have a very precise focus at all the focal points and for all distances. By the way, the focus dial is well braked but is quite thin and impractical for those with large hands, also it is unusable with the paralamp mounted backwards. You also have to be careful because in autofocus wheel, so it can be hindered by the fingers that support the goal. Finally you have to get used to the zoom dial that rotates in the opposite direction to the various Pentax, Nikon, Tamron, etc. It is still a lens that is worth every penny spent, it is the right choice if you want an all-rounder who gives you quality shots traveling light. Rating 9 full

MariangelaT

sent on February 27, 2019

Pros: Lightness, brightness. Sharpness

Cons: Having sold it

Opinion: It was my first lens on digital camera. Together with the 100 macro the best. I photographed half of Spain and Holland. He never missed a shot. Fast focus, quiet stabilizer. Light but solid and compact. Even in macro it defends very well with good close ups. I used it both on Canon 600 D and on 60 D. Sharp already to TA is a great lens that I feel I suggest. Unfortunately I sold it but sooner or later will return. I really regret it. Mariangela

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Reviews » Lenses » Lenses Sigma » Sigma 17-70mm f/2.8-4 DC OS HSM Macro C