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

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With F1.4 and a 45mm equivalent field of view, this lens on paper appears to be a good choice for a 'walkaround' normal prime lens. The bright aperture will satisfy low light shooters and bokeh fanatics, and the near 50mm field of view puts it right inside the versatile 'normal' lens range. While it won't replace a dedicated macro lens with its magnification ratio of 1:7, it still is able to focus down to a working distance of 30cm (less than a foot). Frankly, I’m not even sure how this lens is as cheap as it is. For a stills photographer, there really is no lens in the entire Sony APS-C lineup that can even come close to comparing with the value for money that this Sigma offers. there are a few big downers. The biggest downer is the soft areas along the periphery of the image at F/1.4-F/5.6, sometimes

auto-focus operation. It also seems accurate for the most part, but tended to focus slightly behind the subject at closeThe corner sharpness is terrible, which is bad for me as I often take street photos with it. This is the case even after extensively stopping it down.. As for obtaining “perfect” sharpness, the lens peaks at about F4, and even pixel peepers won’t find any significant flaws. When stopped down, this lens is SHARP. As for vignetting, the 35mm f/1.8 suffers a little more wide open than the two Sigma lenses but once the corrections have been applied, you barely notice the effects.

The same is true at f/4, too, at which the Sigma 30mm f/1.4 DN boasts slightly greater resolution overall and improved results in the outer field compared to the competition color, but overall it has good control. I see no hard ghosts at any angle or aperture. Veiling glare is shows 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. the front inner section, but that doesn't add to the overall length, see pictures above. There's a little slop in the The only downside is that axial or ‘longitudinal’ chromatic aberration is sometimes visible when shooting at very wide apertures. Also referred to as ‘bokeh fringing’, this shows up as purple and green fringes around high-contrast transitions, in front of or behind the point of focus. Unlike lateral chromatic aberration, which generally only occurs towards the edges and corners of the frame, axial chromatic aberration can occur anywhere in the frame. Even so, the Sigma isn’t an underachiever in this respect, matching or beating many other fast primes including the Canon EF-M 32mm f/1.4. Reduce the aperture by a single f/stop and the fringing virtually disappears.

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. Here are several comparison images illustrating what different aperture’s produce using the same scene. Sigma 30mm f/1.4 EX DC Lens @ f/8 Sigma 30mm f/1.4 EX DC Lens @ F/1.4 Sigma 30mm f/1.4 EX DC Lens @ f/1.4 Sigma 30mm f/1.4 EX DC Lens @ f/4 Sigma 30mm f/1.4 EX DC Lens @ f/4 Sigma 30mm f/1.4 EX DC Lens @ f/1.4 Sigma 30mm f/1.4 EX DC Lens @ f/4 Sigma 30mm f/1.4 EX DC Lens @ f/1.4 Lab Test Shots Sigma 30mm f/1.4 EX DC Lens Review @ f/1.4 Sigma 30mm f/1.4 EX DC Lens Review @ f/1.4 – 100% Crop Sigma 30mm f/1.4 EX DC Lens Review @ f/1.8 Sigma 30mm f/1.4 EX DC Lens Review @ f/1.8 – 100% Crop Sigma 30mm f/1.4 EX DC Lens Review @ f/2.8 Sigma 30mm f/1.4 EX DC Lens Review @ f/2.8 – 100% Crop Sigma 30mm f/1.4 EX DC Lens Review @ f/4 Sigma 30mm f/1.4 EX DC Lens Review @ f/4 – 100% Crop Sigma 30mm f/1.4 EX DC Lens Review @ f/5.6 Sigma 30mm f/1.4 EX DC Lens Review @ 5.6 – 100% Crop Conclusion:

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 Sony is programmed to behave in a linear fashion, and takes quite a few motions of the wrist to move from MFD to infinity. This means videographers using manual focus will be able to better predict positions of the focus ring when planning shots, although the slow action doesn't make it an ideal choice either. Thankfully, both drive their focus elements smoothly without any sort of jumpy behavior that can be seen with some focus-by-wire primes, and also both report focus distance next to the distance scale on the camera's screen.OPPO's mid-range smartphone aims to provide a sophisticated camera system at an attractive price. Andy Westlake sees how it measures up. At their respective fastest apertures, the results appear almost identical even though the 35mm f/1.8 and 30mm f/1.4 have a much faster maximum aperture than the 30mm f/2.8. The Google Pixel 6 may not be the latest Google smartphone any more, but it might still be the best value Reasonable size and weight, excellent image quality, large f/1.4 aperture, superior build quality and a good price all mean that the Sigma 30mm f/1.4 DC DN | C lens is worthy of the consideration of Sony E-mount users. The 50mm-equivalent lens is versatile, and a step up from existing Sony options at this focal length. Micro Four Thirds users have a great deal more choice within this focal length. Having said that, the f/1.4 aperture can only be matched by the more expensive Leica 25mm f/1.4 Summilux, and given the performance of the Sigma lens, it would be difficult to justify the extra money.