Sigma 401965 24mm F1.4 DG HSM | A For Sony SE, Black

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In each case, I found that the difference in the distance between the two points was +4.3%. This means that if we assume that the Sony is a 24mm lens (it’s unlikely to be wider), then the Sigma is just about 25.5mm. With the lens and possibly hood lengths taking a bite out of the minimum focus distance, there is not much working distance remaining. Thanks to minimising aberration through the use of the latest technology this lens offers amazing rendering performance, corners included, with ultra-high resolution. The user has the freedom to create a smooth and natural Bokeh effect whilst maintaining higher resolution around the focus point. The Sigma 24mm f1.4 DG HSM Art Lens offers its users high definition rendering without colour aberration as well as natural bokeh effect even from maximum aperture. Outstanding Correction of Sagittal Coma Flare Though bokeh is less of a concern with wide angle lenses than many others, both lenses did pretty well in my limited tests. Looking at this set of out-of-focus stage lights, we see that the bokeh in both cases is nicely round without busy artifacts or contrasty edges (though I personally like the contrast in the bokeh of the Sigma 50mm f/1.4 ART lens, for example, it’s all a matter of taste). In some areas, I did see a hint of the concentric circles that are typical of aspherical lenses in the Sigma (often called “onion rings”), but they were just that… hints, not obvious patterns. Lateral (or transverse) CA (Chromatic Aberration) refers to the unequal magnification of all colors in the spectrum.

The shape, intensity, and position of the flare and ghosting effects in an image are variable, dependent on the position and nature of the light source (or sources), selected aperture, shape of the aperture blades, and quantity and quality of the lens elements and their coatings. Spherical aberration, along with spherochromatism, or a change in the amount of spherical aberration with respect to color (looks quite similar to axial chromatic aberration but is hazier) are other common lens aberrations to observe. If you shoot with a 24 megapixel or lower resolution sensor, the differences seen in the video above will be even less visible A subject measuring approximately 9.5 x 6.3" (241 x 160mm) fills a full-frame imaging sensor at this lens's minimum MF distance.I would say that the target market for this lens is more wedding or event shooters who need a strong center performance at F1.4. Sigma 24 ART Rendering These lenses both feature an 11-bladed rounded aperture and the quality of bokeh they produce is wonderful. With such a wide-angle field of view and shallow depth of field, having these pleasing out-of-focus elements in the image really adds dimension to the scene. Choices, Choices The Sigma 24mm f1.4 DG HSM Art Lens is another wonderful addition to the SIGMA Art line and is perfect for nightscapes, starry skies and cityscapes. It offers the highest optical performance in its class in addition to minimising coma flare, chromatic aberration, distortion and vignetting.

This lens has an AF/MF switch, a feature that has gone missing on many modern lenses and one that I appreciate greatly. Each "stop" in aperture change (full stop examples: f/1.4, f/2.0, f/2.8, f/4.0) increases or decreases the amount of light by a factor of 2x (a substantial amount). Just before wrapping-up, a few more comments for videographers. 24mm is a nice focal length for handheld vlogging, and you can see it here at f2 using IBIS only on the A7 III. There’s much nicer subject separation than the Sony 2.8 and Sigma 3.5 models, although like all 24mm lenses the view can be a little too tight. Wedding and event photography often utilize a wide-angle lens for capturing the large scene, for environmental-type portraits, and for group portraits, including in tight spaces. Stopping down the aperture brings a noticeable improvement through f/5.6, where this lens produces outstanding sharpness into the corner of the frame.

Price comparison

The Sigma 24mm F1.4 DG DN Art Lens design includes two FLD elements and one SLD element to correct for chromatic aberrations and ensure overall high image quality. I had to put the lens on my own scale, but, without caps, I weighed it in at 768g, or 103grams heavier than the EF version. If there is any consolation, it is that the MC-11/EF combo weighs 24g more (the MC-11 weighs 127g), so you have technically saved a bit of weight. The incoming Sony 24mm f/1.4 GM weighs 15.7oz (445g), which means that the FE version of the 24 ART is some 73% heavier.

Sigma provides a 1-year limited warranty, and Sigma USA provides a limited 3-year warranty extension. Still, distortion correction is destructive at the pixel level as some portion of the image must be stretched or the overall dimensions reduced.As usual I’ll have a look at the technical data first. I’ve rated the features with a [+] (or [++]), when it’s better than average or even state of the art, a [0] if it’s standard or just average, and [-] if there’s a disadvantage. So, consider this video a “ First Impressions” rather than a full review, but the basics are here. Angle of View Regarding focus speed: The Sigma focuses in around 0.5 sec from infinity to 0.3m (1:10 magnification) – which is pretty fast but comparable to the Sony, Viltrox, and 24mm Sigma. There was no hunting under the well-lit test conditions. The focus ring is 26mm wide and well damped – but still can be turned with one finger. Its surface is rubberized and has a good grip.