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

Product Information

The Sigma 30mm f/2.8 is the most limited of the three since the PDAF squares only work in the very centre. In terms of chromatic aberration, the Sigma puts up a fairly decent performance. There is some lateral CA but this is easily removed, either by the camera or most editing software. As you might have guessed this Sigma 30mm f/1.4 EX DC lens is a little bit soft wide open at f/1.4, but still totally usable. The edges suffer the most from the softness, but the center of the frame is not to bad. The softness slowly goes away as you approach f/2.8, and then it’s nice and sharp across the whole frame. Beyond f/2.8 is solid all the way up and pretty much tac sharp at f/4-f/16. Can’t beat that for the price 😉 The focusing of this lens is also very good and accurate. When shooting wide open at f/1.4, the focus is critical as the depth of field becomes super narrow. I missed several shots because I did not account for how shallow the DOF actually was. The minimum focus distance is a decent 11.81 inches. While not as short as the wonderful Sony/Zeiss 24mm f/1.8, it's not half bad. No, it won't replace your macro lens. But if you want to get a dreamy shot of your fettucine alfredo before scarfing it down your gullet, this lens will get the job done. Otherwise, using the lens is more or less the same experience as working with it on a Fujifilm or other manufacturer’s camera. It benefits from fast, accurate and quiet autofocusing. It’s ideally suited as an everyday lens, and would make a reasonably good choice as perhaps your only lens for a day trip or similar outing.

Looking at the three lenses side-by-side at their respective maximum apertures, we can see that the 30mm f/1.4 provides the softest, most pleasant out-of-focus rendering. All three have round specular highlights (bokeh balls) at the centre which gradually lose their shape as they get closer to the edges. The 35mm f/1.8 and 30mm f/1.4 produce the most distinct “cat’s eye” bokeh balls in the corner. Sigma 30mm f/1.4 at f/1.4 Sony 35mm f/1.8 at f/1.8 Sigma 30mm f/2.8 at f/2.8 La distorsione è minima, anche in post produzione in molti casi le correzioni eseguite per la distorsione dell'obiettivo sono davvero minime e in molti casi trascurabili. We use Imatest SFR (spatial frequency response) charts and analysis software to plot lens resolution at the centre of the image frame, corners and mid-point distances, across the range of aperture settings and, with zoom lenses, at four different focal lengths. The tests also measure distortion and color fringing (chromatic aberration).Comparing the lenses at a closer distance – in this case, about 1.5 metres away from the subject – reveals a different story. I observed that the camera heats up slightly with Sigma 30 mm (which may drain the battery faster will have to test properly). On the other hand, I hardly have noticed this issue with SEL18135. Correction for various types of aberration provided by two SLD (Special Low Dispersion) glass element and a hybrid aspherical lens It balances perfectly on my Sony a6000 and the massive focusing ring provides a really nice rubberized gripping point when out shooting. 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.

The Sigma exhibits a fair amount of lateral CA but this is very easily corrected, with corrections provided by the lens to allow correction either by the camera or most editing software. There is some visible barrel distortion, about 2.8 percent, which is something we expect from a wide-angle lens, but not so much one with a more standard angle of view, which the 30mm provides. The distortion means that straight lines are drawn with an outward bulge, and because it's a third-party lens, automatic correction isn't an option. You can remove it easily using software— Adobe Lightroom Classic CC is our favorite, and the most popular option. With the 35mm f/1.8, I found it quite easy to use speeds as slow as 1/3 of a second or even 0.4s with a couple of attempts. With the Sigma lenses and a non-stabilised Sony body like the a6300, it is risky to go below 1/15th of a second. a6300, 0.4s, f/1.8, ISO 400

También es bastante mala la "llamarada" y "fantasmas" en cuanto le roza un rayo de sol o de luz artificial. Sharpness is impressive even when shooting wide-open at f/1.4. At this aperture, you can get a really tight depth of field when shooting at fairly short focus distances. Bokeh (the quality of defocused areas) is pleasantly smooth and remains so when stopping down a little, helped by a well-rounded 9-blade diaphragm. With sigma 1/50 1/60 is your minimum speed you can handheld with a lot of risk. I have the Sony 35mm. Risk starts after 1/15 shutter speeds.

In manual focus mode, we found the fly-by-wire focus rings of all three lenses accurate and easy to use. As mentioned in the design section, our favourite focus ring is that of the 30mm f/1.4 because it is large, deeply ribbed and made of rubber. Our least favourite is the 30mm f/2.8’s mostly due to its smooth surface but also because quite cold to the touch in low temperatures. Although none of the lenses feature weather-sealing, they all sport a solid barrel made of a mix of high grade plastics and metal. Holding them in the hand, the 35mm f/1.8 comes across as the least robust of the three because there is less metal covering the exterior. I took a few hundred photos with the two versions of the Sigma 30mm f/1.4 EX DC lens, and here are a some photos that help illustrate what this lens is capable of. The Sigma 30mm f/1.4 EX DC HSM is a large aperture lens that provides a standard anglemost similar to the human eye. The 30mm focal length translates to approximately 50mm in35mm format. Micro Four Thirds shooters have more bodies with in-camera stabilization available—Olympus has included the feature for years, and Panasonic has jumped on board as well, adding in-body image stabilization (IBIS) to more recent models. Competing lenses for Micro Four Thirds include the Panasonic 25mm f/1.4, Olympus 25mm f/1.8, Panasonic 25mm f/1.7, and Olympus 25mm f/1.2.

Supplied Accessories

Part of the DN range of lenses for mirrorless cameras, the Sigma 30mm f/1.4 DC DN C ( Sigma 30mm f/1.4 DN) is a fast- aperture, third-party standard prime for Sony E-mount cameras. Taking into account the 1.5x crop factor on Sony APS-C sensors, the Sigma 30mm f/1.4 lens offers an equivalent 45mm focal length, making it a good option for a variety of subjects, including portraits and general use. The high number of complex elements and heavy vignetting mean that while the Sigma reports a maximum aperture of F1.4, the actual total amount of light that passes through the lens ends up being T1.8.