Sigma 18-50mm f/2.8-4.5 DC OS HSM : Specifications and Opinions

Sigma 18-50mm f/2.8-4.5 DC OS HSM

The Sigma 18-50mm f/2.8-4.5 DC OS HSM is a standard lens for APS-C, manufactured from 2009 to 2015 (discontinued). The focus is done by Lens AF motor (non-ultrasonic), it has image stabilization. The average price was 255 €;

7 users have given it an average vote of 8.1 out of 10.

Specifications
Focal lenght	18-50 mm
Angle of view	77.3 - 32.1° (equivalent to a 27-75mm in Fullframe 24x36mm format)
Format	APS-C
Max. aperture	f/2.8-4.5
Aperture blades	7
Lenses/Groups	16 elements in 12 groups
Min. focus distance	0.30 meters
Reproduction ratio	0.24x
Features
Zoom type	Ring, external
Stabilization	Yes (built in lens)
Focus	Lens AF motor (non-ultrasonic)
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	67 mm
Lens hood	Yes, supplied
Weather sealing	No
Weight	395 g
Dimensions	74 x 89 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Angelo1989

sent on 16 Ottobre 2020

Pros: crisp, zoom that doesn't extend, price, versatile great for stabilized videos

Cons: af not very precise, flare, despite 2.8 a little dark

Opinion: I bought this new goal, from a foreign site, paying it only 115 euros in 2013. I replaced it at 18-55 nikon on a d3200 and then on a 7200 instead of the 18-105 released as standard by reselling them. I have to say that compared to the optics, low range nikon, this is much higher and surprised me in terms of construction quality (very robust, well done and seems to have a much higher quality goal) and in terms of price. I used the lens 7 years ago and then resell it a few days ago (I resold it at the same purchase price), it was a worthy companion, and it is still as new! I would like to start by pointing out that I had the most up-to-date version, all in smooth plastic and rubber and not the one with that velvet-like one that comes out shiny black. Since the zoom does not extend, it is possible to make nice macros (without shadows) very close, the colors are (in my opinion) a little cold, in the backlight it has little resistance to flares and suffers a little aberration but overall solvable in PP. Indoors it is perfect, for parties, almost without ever using flash. Sometimes I encountered problems with the not very precise AF, especially on the 7200, very rarely did not really focus returning an error (maybe it was also due to the firmware of the machine). Overall excellent goal, I sold it only to take an intermediate, more versatile lens (sigma 17-70) since it only reaches 50mm and I prefer not to change continuously.

Manumilian

sent on 17 Aprile 2019

Pros: Cost, lightness, stabilization, sharpness at the center

Cons: On the bad sidelines

Opinion: For What it costs used, it is absolutely not terrible. Too Bad the defects on the sidelines, with evident blur (especially at the top left) that do not improve much when the focal and closing of the diaphragm change. Chromatic Aberrations present at the edges at the focal court, however easily correctable in post production. Excellent stabilization, AF is not lightning but, personally, it is not a problem. Great sharpness in the middle.

Ciapagnao

sent on 24 Dicembre 2014

Pros: cost, robustness, the body that does not stretch, 2.8 to 18mm, stabilizer

Cons: 2.8 not fixed, soft to 18mm, flare, 4.5 to 50mm

Opinion: I traded a 40ino with this lens and I must say that I was surprised. I have found over the aspettative.rn First for the OS that stabilizes well (arrival 1/10 and 1/20 to 18 to 50mm much better than the Tamron VC 17, 50), the sharpness is decent after all, I thought it was of much worse than the Tamron 17 50 smooth but this sigma not doing too bad. I would say better than the Tamron 50mm (but not with 4.5 you can use it for portraits) and worse than the Tamron 18mm. I think to keep it a little bit more for the price, I have a canon 5oD and combined with sigma 18 50 is not that I walk around with a big investment so the reflex port always with me without fears various, fears I had until a few time ago when I used cameras and lenses more expensive.

Giuseppe Patruno

sent on 10 Dicembre 2014

Pros: Good construction, excellent stability, sharpness, HSM fast, smooth, quiet, light.

Cons: 2.8 not steady, dim or bright only in the right place, little resistance to flare, but in some ways can be helpful, not very resistant to wear, short throw, the value of "50", is perhaps a little bit.

Opinion: I purchased this light recently to have a wide-angle focal to use at parties, is a goal which is very convenient, fast in focus, very good sharpness, it was a constant 2.8 at all focal lengths would be great for those who want an optical stable, fast and with a sharp focus not exaggerated and often uses the flash can be very useful, has made a pretty good when properly exposed, it always use for my portraits strobisti, the thick is a little tantrum with the focus, but the focus and stabilization is still great! the only flaw is that you wear easily and requires care and attention too, especially for the dust and dirt, right now I would change only with a 17-55 or a 10-22! ; D

Alessandro C.

sent on 23 Ottobre 2011

Pros: Lightness, sharpness, design features, reliability

Cons: Not sealed, not very bright.

Opinion: E 'I use to the convenience it offers. If you expose carefully is delicious, mount a stabilizer 4-stops that allows at least very good shots, diffile encountering any errors. Pleasant to the touch and offers greater security of the "plasticotto" Canon, which I have released almost immediately (it was not even bad ... but the material ... gosh ...)

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Sigma 18-50mm f/2.8-4.5 DC OS HSM : Specifications and Opinions

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Photos taken with Sigma 18-50mm f/2.8-4.5 DC OS HSM