Sigma 2470mm F28 Dg Os Hsm Art Lens for Canon Reviews and Images
Introduction
The Sigma 24-70mm F2.8 DG Bone HSM Art is a new fast standard zoom lens for full-frame DSLR cameras. It volition also work with APS-C sensors with an effective increment in focal length. The Sigma 24-70mm F2.8 DG OS HSM Art features a rounded ix bract diaphragm which creates an attractive blur to the out of focus areas of the epitome. It likewise offers built-in optical epitome stabilisation, an Hyper Sonic Motor for fast and quiet autofocusing, and has a minimum focusing distance of 37cm / fifteen.0in and a maximum reproduction ratio of ane:four.8. The Sigma 24-70mm F2.8 DG Os HSM Art lens officially retails for £1,399.99 / $i,299.00 in the Britain and the USA, respectively.
Ease of Use
Weighing in at 1,020 grams and measuring nearly 11cm in length, the Sigma 24-70mm F2.8 DG OS HSM Art is certainly a large and heavy lens given its focal length, and significantly heavier than the equivalent Canon EF 24-70mm f/two.8L Two USM or Nikon AF-South NIKKOR 24-70mm f/2.8E ED VR lenses. Every bit seen in the photos beneath, it complements a full-frame camera like the Canon EOS 5DS R well, although it feels somewhat out of place on a smaller APS-C body. Note that when set to 70mm, the lens extends by an additional 4.5cms.
Build quality is excellent given the comparatively affordable price tag. The lens has a plastic shell with a mixture of metallic parts and a compound material, TSC (Thermally Stable Composite), used within. It also incorporates a contumely bayonet mount that's supposed to be more durable. The optical elements are made of high-grade glass.
In terms of features, the Sigma 24-70mm F2.eight DG OS HSM Fine art offers everything that y'all need from a standard zoom lens. This very usefully includes congenital-in Vibration Reduction, activated by the OS switch on the lens barrel, which offers effectually 3 stops of compensation.
Focusing is usefully internal and manual focusing is possible when ready via the Focus switch on the lens barrel. Full-time manual focus override is also available at any time but past rotating the focus ring.
A clear altitude calibration in both feet and meters runs from the closest focusing altitude of 37cm / 15.0in. to infinity.
The Sigma 24-70mm F2.8 DG Os HSM Art ships with a skilful quality soft case and also a plastic petal-shaped lens hood (LH876-04). It accepts 82mm filters.
The Sigma 24-70mm F2.viii DG OS HSM Art lens mounted on a Catechism EOS 5DS R
The Sigma 24-70mm F2.8 DG Bone HSM Art lens mounted on a Canon EOS 5DS R
The Sigma 24-70mm F2.viii DG Bone HSM Art lens mounted on a Canon EOS 5DS R, extended to 70mm
The Sigma 24-70mm F2.8 DG Os HSM Art lens mounted on a Canon EOS 5DS R
The Sigma 24-70mm F2.8 DG OS HSM Art lens mounted on a Canon EOS 5DS R , extended to 70mm
The Sigma 24-70mm F2.8 DG Bone HSM Art lens alongside a Canon EOS 5DS R
Side of the Sigma 24-70mm F2.8 DG Os HSM Art lens
Side of the Sigma 24-70mm F2.viii DG Os HSM Art lens , extended to 70mm
Side of the Sigma 24-70mm F2.eight DG Bone HSM Art lens
Front of the Sigma 24-70mm F2.8 DG Bone HSM Art lens
Rear of the Sigma 24-70mm F2.8 DG Bone HSM Fine art lens
Side of the Sigma 24-70mm F2.8 DG OS HSM Art lens
Side of the Sigma 24-70mm F2.8 DG OS HSM Art lens
The Sigma 24-70mm F2.8 DG OS HSM Art lens in-hand
The Sigma 24-70mm F2.eight DG OS HSM Art lens with the supplied lens hood fitted
Focal Range
At the 24mm focal length the bending of view is 84.i degrees.
Field of view at 24mm
At the 70mm focal length the angle of view is 34.3 degrees.
Field of view at 70mm
Focusing
The Sigma 24-70mm F2.eight DG Bone HSM Art lens has quite a narrow focus ring, although it is ridged for easier grip. There are hard stops at both ends of the range, making it easier to gear up focus at infinity. Polariser users should be pleased that the 82mm filter thread doesn't rotate on focus.
When it comes to auto-focusing, the Sigma 24-70mm F2.8 DG Os HSM Art is a quick performer, taking well-nigh 0.15 seconds to lock onto the subject when mounted on the Canon EOS 5DS R that we tested information technology with.
We didn't experience much "hunting", either in good or bad light, with the lens accurately focusing virtually all of the time. It'south as well a quiet performer, thanks to the built-in HSM (Hyper Sonic Motor), which makes this lens well-suited to video recording.
Chromatic Aberrations
Chromatic aberrations, typically seen every bit purple or blueish fringes along contrasty edges, are not really a problem for the Sigma 24-70mm F2.8 DG OS HSM Fine art, even at the edges of the frame.
Light Fall-off
With the lens set to its maximum discontinuity of f/two.8, at that place is some low-cal fall-off in the corners at both ends of the zoom range. Stopping-down to f/5.vi near eliminates this. There'due south also noticeable barrel baloney at the 24mm focal length and slight pincushioning at 70mm.
Low-cal fall-off at 24mm
Lite fall-off at 70mm
Flare
Flare is a typical trouble with wider-bending lenses, so we were curious to discover out how the Sigma 24-70mm F2.8 DG OS HSM Art fared in this respect. As these examples shows the lens is is a little susceptible to flare when shooting straight into the sunday, even with the supplied lens hood fitted, but overall information technology is well controlled cheers to the lens' Super Multi-Layer Coating.
Macro
The Sigma 24-70mm F2.8 DG Bone HSM Art isn't claimed to exist a macro lens, just information technology delivers quite adept operation withal if you lot zoom to 70mm. It has a minimum focusing distance of 37cm / 15.0in. and a maximum magnification ratio of 1:four.8. The following instance demonstrates how close you tin get to your subject field.
Close-up performance
Bokeh
Bokeh is a word used for the out-of-focus areas of a photograph, and is commonly described in qualitative terms, such as smooth / creamy / harsh etc. In the Sigma 24-70mm F2.8 DG OS HSM Art lens, Sigma employed an iris diaphragm with nine rounded blades, which has resulted in very prissy bokeh in our view. We do realise, however, that bokeh evaluation is subjective, and so we've included several 100% crops for your perusal.
Sharpness
In social club to show you how sharp this lens is, nosotros are providing 100% crops on the following pages.
- Ease
of Use - Sample
Images - Lens
Specs - Rating &
Conclusion - Master
Rivals
Source: https://www.photographyblog.com/reviews/sigma_24_70mm_f2_8_dg_os_hsm_review
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