Architectural photography, large product photography, interior photography, and birthday parties are just a few uses for 24mm. The color blur is rather strong (though not unusual) at f/1.4 and slowly improves as the aperture is narrowed.

While telephoto lenses are more frequently used for sports, a 24mm angle of view allows a very different perspective at these events. The spherical aberration color halo shows little size change as the lens is defocused, and stopping down one to two stops generally removes this aberration. The Sigma 24mm F1.4 DG DN Art Lens vs. Sigma 20mm F1.4 DG DN Art Lens comparison shows the 20mm lens measuring larger and weighing 4.2 oz (120g) more. 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.

Comments

When shooting at the widest apertures, depth of field is often shallow, and the plane of sharp focus less frequently includes details showing in a corner, making corner sharpness less important. I’ve been a fan of 24mm f/1.4 lenses ever since I bought Nikon’s AF-S 24mm f/1.4G for my DSLR many years ago (using it with a Nikon D7000 at the time, followed by a Nikon D800E). For years, it was my primary landscape photography lens, and I took a lot of my favorite photos with it. The Sony FE 24mm f/1.4 GM follows the same tradition and improves upon DSLR 24mm f/1.4 lenses in a number of ways, as you’ll see through this review. The lens also comes with a rear filter holder, allowing photographers the freedom to combine multiple filters to suit a huge variety of shooting situations for near-unlimited creative potential at an ultra-wide viewing angle—for example, using a front filter to reduce light pollution and a softening filter on the rear to take impressive, sharp photographs of nightly landscapes with star-filled skies. Dust- and Splash- Resistant Structure Sealing: Yes, both Sigmas and the Sony have a rubber grommet at the lens-mount plus further special weather-sealing throughout the construction. The Viltrox does not even have a rubber grommet. [+]

The first lens I wanted to compare the Sigma 24mm F1.4 DG DN Art Lens to is the Sony FE 24mm F1.4 GM Lens. FTM (Full Time Manual) focusing is supported in Sony's DMF (Direct Manual Focus) mode with the shutter release half-pressed or the AF-ON button pressed. APS-C format cameras using lenses projecting a full-frame-sized image circle avoid most vignetting problems.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. Astigmatism is seen as points of light spreading into a line, either sagittal (radiating from the center of the image) or meridional (tangential, perpendicular to sagittal).