Sigma 33B965 30 mm F1.4 DC DC Sony E-Mount-Black

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Despite fairly heavy (–1.7EV) corner shading at f/1.4, close down 1 stop and vignetting on the Sigma 30mm f/1.4 DN is comparable to the Zeiss 32mm f/1.8 and better than the Sony E 35mm f/1.8 The lens measures 64.8×73.3mm and weighs 265g, which certainly isn’t going to inhibit your ability to carry it around with you all day. It has a 52mm filter thread, and usefully, the lens employs internal focusing, so should you use an ND grad or polarising filter with it, you will not have to worry about the front turning or extending when focusing. Unfortunately, to achieve such a clean and minimalistic lens barrel, they had to omit a physical AF/MF switch. It’s a bit annoying and probably my only major gripe with this lens. shoot a mix of environmental portraits, street and landscapes (though keep in mind that the corners can be soft up to f/5.6)

Alas, unboxing the lens revealed an immediate disappointment – no lens case! All of my other Sigma lenses (including the “Art” series) have included nice padded and zippered cases, so the exclusion of a case was a letdown. Tsk, tsk, Sigma... My poor "Contemporary" lens feels naked without a matching case. In terms of just spec we see a couple of major differences. First, while the Sony is 2/3 of a stop slowerthan the Sigma, it does include optical image stabilization. That alone gives it a better chance at being the preferred lens for video, although when shooting 4K the slightly wider FOV of the Sigma might fare better on any body that gives an additional crop.We tested the lens with a few cameras, including a Sony Alpha 6000, the new Alpha 6300 and an Alpha 7R in its APS-C crop mode, and it felt nicely balanced on each. It is fairly large for the focal length. Most of the other lenses I mentioned previously are smaller, almost pancake, but then they don’t have an f/1.4 aperture, which obviously requires larger elements. The fast f/1.4 aperture is amazing and can create incredible separation and bokeh effects that are sure to please and this lens is very affordable considering the huge heavy chunks of glass. The fastest aperture all three lenses share is f/2.8. At this value, the 35mm f/1.8 and 30mm f/1.4 look much more similar, though there is an unpleasant texture on the bokeh balls of the Sony lens. The 30mm f/2.8 continues to have the smallest bokeh balls but the overall rendering is nearly identical to its two siblings. Sigma 30mm f/1.4 at f/2.8 Sony 35mm f/1.8 at f/2.8 Sigma 30mm f/2.8 at f/2.8 Nitidez: La nitidez está en el lado alto, aunque en su día lo comparé con el zoom de mi RX-10 y quedé decepcionado, después lo he comparado con otros objetivos (Sony E 35 1.8, Sony E 30 3.5 macro y Sony E 50 1.8) y es bastante bueno, mucho más que el Sony E 35mm 1.8 sobre todo en las esquinas y hasta f5.6 (Donde más o menos se igualan), está a la altura de mi Sony e 50mm 1.8 que es bastante bueno.

Needless to say, the key is to get the focus absolutely spot on. An f/1.4 lens can be very unforgiving; with such a shallow depth of field, the slightest shift in focus can make a huge difference. The good news with the Sigma 30mm f/1.4 is that, when you get the focusing right, you are rewarded with fantastic sharpness. Our real-life images shot with the Sony Alpha 6300 looked as sharp in the centre as they would with a proprietary 50mm f/1.4 DSLR lens. It really is excellent. We tested the lens with a few cameras, including a Sony Alpha 6000, the new Alpha 6300 and an Alpha 7R in its APS-C crop mode, and it felt nicely balanced on each. It is fairly large for the focal length. Most of the other lenses I mentioned previously are smaller, almost pancake, but then they don’t have an f/1.4 aperture, which obviously requires larger elements.

Comparisons aren’t necessary for this section of the article because only the Sony 35mm f/1.8 comes with optical stabilisation (Optical SteadyShot). For those who own a Sony APS-C body without in-body stabilisation – essentially all bodies except the a6500 – having optical stabilisation can be an enormous advantage when shooting at slow shutter speeds. SIGMA 30mm F1.4 DC DN | Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open, with F1.4 brightness. Photographers will enjoy the beautiful bokeh effect that only a large-aperture lens can offer and the exceptionally sharp optical performance expected from a fine prime lens. Leveraging SIGMA’s latest technologies and design insights, this new lens fulfills the concept of the Contemporary line, in which varied elements come together in optimal balance. Chromatic aberrations are very well controlled and easily fixable with lens correction software. Vignetting is noticeable at f/1.4, but not to bad. Again incredible easy to fix in Lightroom or your preferred editing software. All three lenses make room for a fly-by-wire focus ring on the barrel. Those of the 35mm and 30mm f/1.4 are ribbed while the 30mm f/2.8’s is perfectly smooth. We find the 30mm f/1.4’s the most pleasant to use, partly because the deep ridges make it easy to turn but also because it is made of rubber, which prevents it from becoming uncomfortably cold in low temperatures. However, the 35mm f/1.8 is the easiest lens to unmount because its focus ring takes up less space on the barrel than either of the other lenses. The Sigma 30mm f/1.4 EX DC lens is not a light lens either considering it size. The weight is expected though as the f/1.4 aperture is large, and calls for 7 large SLD glass elements to make up the lens group. All that glass adds up to a pretty hefty little lens that tips the scales at 15.17 oz (430g).

DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras.The large ribbed focusing ring on the lens barrel is impossible to miss and is easy to find with your eye held to the viewfinder. I had no problem with manually focusing this lens, and I was able to get very accurate focus when using the magnified view offered by the Sony cameras. Even very slight nudges of the electronic focus ring were rewarded with precise shifts in focus. Highly responsive, a slow turn of the ring will shift the focus slightly, whereas a sharp shift could see you jump from a metre to infinity. This quarter-frame crop shows the slight purple and green axial chromatic aberration that can occur when shooting wide-open (Image credit: Matthew Richards) massive dark corners if used on a full frame camera. This 30mm lens has an angle of view similar to a 50mm lens on a This is Apsc lens, and Sony does not provide in body stabilization for its Apsc line. For us a6300 users, ibis is helpful. On my a7rii I wouldn't ever place neither of these two anyway for different reasons.