Sigma 56mm F/14 Dc Dn Contemporary Lens for Micro Four Thirds Review
Exam RESULTS Sigma 56mm f1.4 DC DN: | |
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The new Sigma 56 mm f/1.four DC DN is a wonderfully compact and bright telephoto for APS-C and MFT.
Sony has released few new lenses for its mirrorless cameras with an APS-C sensor in contempo years. That is understandable because many lenses had to exist designed for full frame, only disappointing for users of cameras such as the A6500 and A6300 because the selection of really beautiful lenses for these cameras is not large. Of class, you can employ the full-frame lenses, simply the bright versions are large and heftily priced. Fortunately, at that place is Sigma. Sigma already makes two beautiful brilliant lenses for the APS-C models from Sony and the Micro Iv Thirds cameras from Panasonic and Olympus. Now at that place is also a 56 mm f/1.iv. On the Sonys, this corresponds to an 85 mm on 35 mm. That is a nice focal signal for portrait photography. And thank you to the loftier effulgence of f/i.4, you lot tin as well accept pictures with a squeamish groundwork blur. On Micro Four Thirds, this 56 mm even works like a bright 112 mm telephoto lens. That makes it 1 of the few real 2x telephotos with autofocus for this system. That lone makes this lens quite special. Portrait lenses like the 42.5 mm from Panasonic are however fairly close to standard lenses and do not do very much if y'all want to bring a subject closer to yous. The Sigma is meliorate suited for this and is also just short plenty to make portraits at a nice distance from your model.
BUILD AND autofocus
The Sigma 56 mm f/1.4 DC DN is a lens from the Contemporary series. Information technology is a nicely meaty and light lens. With a length of 66.5 mm, information technology is slightly shorter than, for example, the 55 mm f/1.8 from Sony, but information technology is half a stop brighter. For an APS-C lens, the weight is reasonable at 270 grams. If we await at MFT, it depends a bit on what you compare this lens to. There are 45 mm f/1.viii lenses that are much lighter and smaller, just also f/ane.two lenses that are bigger and heavier. The Sigma sits very nicely in between. The lens has an HSM motor for fast and smooth focusing. The auto focus is also silent, and that is great for video work. The optical blueprint comprises x elements in half dozen groups. One of the lens elements is fabricated of SLD drinking glass, which has a special refractive index, and the rear lens element is aspherical. All this should ensure high sharpness and few aberrations. Nevertheless, the pattern does lean on the correction of vignetting and distortion in the camera. Should this besides be optimized in the lens blueprint, the lens would have to be much bigger and heavier, and that would not fit with the cameras for which this lens was developed. The lens has gaskets to keep out grit and moisture. At the rear, it is equipped with an extra rubber ring around the mountain to seal the connexion to the body. The housing is for the virtually office made of loftier-quality plastic, only the mount is made of bronze. Sigma's Mount Conversion is available for the lens, which means that you tin can have the mount replaced if you alter systems.
VIGNETTING, FLARE AND DISTORTION
If the Sigma 56mm f/i.iv DC DN has one point on which it does non perform perfectly, so information technology is the distortion. In RAW, it's quite high at more than iii.5% pincushion shaped. And that is fifty-fifty on a smaller MFT sensor. Nosotros have not yet measured information technology on APS-C, but we suspect it will be a little more. If you shoot in jpeg, the camera removes that baloney for you lot, and if y'all shoot in RAW, then the software tin practice that for you. In both cases, you then take a barely perceptible amount of pincushion-shaped baloney. Modern lenses are designed to make use of these corrections, and nosotros see these days that eliminating distortion in post-processing has virtually no event on sharpness. The high distortion in RAW is therefore no more than a bit of trivia. For the image quality, it is not really important, and in the terminate result, the shots are beautifully directly.
Despite the high brightness, the vignetting from the Sigma 56 mm f/i.4 DC DN on MFT is very small. The lens is of course assisted by the fact that it is actually designed for APS-C and therefore has a larger epitome circle than is needed for an MFT sensor. Vignetting of 0.8 stops in RAW at full discontinuity is zip to worry about, and some portrait photographers may fifty-fifty find it unfortunate that information technology is not higher. In the jpegs, it is almost negligible at 0.four stops even at full aperture..
IMAGE QUALITY
The epitome quality of the Sigma 56 mm f/1.four DC DN is fantabulous. In RAW, we encounter a clearly lower score at full discontinuity than afterward stopping downwards one or two stops. Simply as soon as the in-camera corrections on the jpeg files are let loose on the shots, the score rises at total aperture to very proficient values. At f/i.four, the corners and edges d not even lag far behind the center. Stopping down 1 or two stops then causes a small increase in the measured sharpness, but that will hardly be visible in practice. The sharpness remains that good up to and including apertures of f/8 aperture, and fifty-fifty f/11 is however usable, although the quality does decrease a bit due to diffraction. Chromatic color errors are well suppressed, and the bokeh is beautiful at full aperture, specially for an MFT lens. Although the Sigma 56 mm f/one.4 DC DN has half a stop less brightness than, for example, the Panasonic 42.5 mm f/1.2, information technology also has a slightly longer focal length. The divergence in bokeh between the two is therefore virtually negligible.
Sigma 56mm f/ane.4 DC DN SAMPLE IMAGES
Curious about the functioning of the Sigma 56 mm f/one.4 DC DN in practice? Click on the button below and visit our renewed spider web gallery with sample images. The images can be downloaded in total resolution to exist viewed at 100%.
ConclusiON: REVIEW Sigma 56mm f/1.4 DC DN on MFT
Source: https://camerastuffreview.com/en/review-sigma-56mm-f-1-4-dc-dn-contemporary/
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