Sigma 1224mm F4 Dg Hsm Art Lens for Nikon Sample Pictures
TEST RESULTS SIGMA 12-24mm F4 DG HSM Art: | |
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Especially in mural photography, a 12mm has go a fairly "normal" focal bespeak.
The Sigma 12-24mm F4 DG HSM Art is Sigma's first 12-24mm in the Fine art series. That's not to say information technology'south Sigma's first 12-24mm. Sigma has already produced two previous models. Both had a brightness that went from f/iv.5 to f/five.6. This 12-24mm F4 DG HSM has a fixed brightness of f/4. Information technology is therefore not surprising that this lens is a lot bigger than its 2 predecessors. And every bit an Art lens, you too expect the optical quality to be slightly higher. And fortunately, that is largely the case. You also pay a little more than for this Art than for the two previous 12-24mm lenses from Sigma. If that'due south a problem, you can always check whether you can still detect a Sigma 12-24mm f/iv.5-five.6 HSM DG Two for sale. If you compare this Sigma 12-24mm F4 DG HSM Art with, for example, the Canon 11-24mm f/iv 50 USM, the cost tag will be a lot more comfy. The Sigma has almost the same specifications, minus a millimeter on the broad bending, for a significantly lower cost.
Super wide-angle lenses like the Sigma 12-24mm F4 DG HSM Art have become increasingly popular in recent years. As a result, we have also become accustomed to the perspective distortion that you get irrevocably with these kinds of extreme angles of view. Especially in landscape photography, a 12mm has become a fairly "normal" focal signal. For astrophotography, some other branch of photography that uses many ultra-wide angles, the effulgence of f/four is really not high enough. For that, an f/2.viii lens such as the Sigma fourteen-24mm F2.8 DG HSM Art may be a ameliorate choice. The Sigma 12-24mm F4 DG HSM Art is available in Nikon F, Canon EF and Sigma mount. Of course, it can too be used on Sony E cameras with an adapter such every bit the Sigma MC-11.
BUILD AND OPERATION
During the construction of the Sigma 12-24mm F4 DG HSM Art, adding or subtracting a gram here or there was not a consideration. It weighs no less than 1150 grams, which is about 480 grams – nearly a whole lens – more than the sometime 12-24 mm. The relatively short, but quite thick lens feels very solid. It is largely made of high-quality plastic, with a metal interior and metal mount. The lens is about 13cm long and just over 10cm in diameter. It is atmospheric condition resistant and has a gasket on the back, so that moisture and dirt cannot easily enter through the mountain. Of form, you do accept to be careful with the big, convex front end lens.
Fortunately, the non-removable tulip-shaped lens hood offers some protection. Obviously, this lens therefore has no filter thread. If you even so want to utilize filters, you volition have to look for a filter holder specially fabricated for this lens and invest in big 150mm filters. The Sigma 12-24mm F4 DG HSM Art has a focus ring on the front and a window on which the set altitude can be read. The zoom ring is farther back. Both rings turn very smoothly. On the side, this lens also has a switch to change from autofocus to manual focus.
Autofocus
For autofocus, the Sigma 12-24mm F4 DG HSM Art uses Sigma'due south HSM hypersonic motor. It is fast and virtually silent. Not that you notice much, because with such brusk focal lengths, the focus stroke is of form too very curt. Accuracy is a point of business on SLRs. That also has to exercise with these brusk focal points, as strange as that may audio. You would think that at f/8 it hardly matters what you fix it to, only that's incorrect. The focus stroke from 1 meter to infinity is very small, and if the camera is off by a fraction, you volition see that in the results. And sometimes that happens.
IMAGE QUALITY
The image quality of the Sigma 12-24mm F4 DG HSM Fine art is good, especially on the broad-angle side. There, the center sharpness at full discontinuity is already fine, and the corners lag lilliputian behind. Just the very tips of the corners are non yet corking at f4. Stopping down increases the sharpness, and the lens is at its best at f/eight. If you zoom, it slowly becomes less attractive, specially at the largest apertures. At f/4, the lens is no longer really practiced in the corners at 20mm and 24mm. For good sharpness from corner to corner, you should definitely stop down 2 stops. However, the center sharpness is then no longer as loftier as at total aperture. The overall image quality is therefore slightly less at the longer focal lengths than at the short ones.
Naturally, an ultra-broad-bending lens suffers from vignetting, and this Sigma is no exception. But the amount of vignetting is acceptable. At 12mm and f/four, it is at its highest, with nearly 2 stops. Both stopping downwardly and zooming reduce the vignetting speedily, and, with some corrections in the postal service-processing, you volition before long not see much of information technology.
Sigma advertises the Sigma 12-24mm F4 DG HSM Art as a lens without distortion. That is not quite what we have seen in practice. For much of the range, distortion is indeed low. But at the extreme wide-bending setting, information technology increases chop-chop, and you see considerable barrel-shaped baloney. You only endure from that on an SLR camera in the viewfinder. Because equally presently every bit you import the files into one of the common RAW converters and take the lens profiles applied automatically, that distortion largely disappears. It does hateful that some calculations accept to be done on the files. With the 11-24 mm f/four from Canon, that's hardly necessary. But yep, it well-nigh costs twice as much.
The Sigma 12-24mm F4 DG HSM Art does not endure much from flare, and if you stop down a bit, you tin also make reasonable dominicus stars with it.
SIGMA 12-24mm F4 DG HSM Art SAMPLE IMAGES
Curious nigh the performance of the Sigma 12-24 mm F4 DG HSM Fine art in practice? Click on the button below and visit our renewed web gallery with sample images. The images can exist downloaded in total resolution to be viewed at 100%.
ConclusiON: REVIEW SIGMA 12-24mm F4 DG HSM Fine art oN Sony A7R Iii
Source: https://camerastuffreview.com/en/review-sigma-12-24mm-f4-dg-hsm-art/
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