Weighing in at 405g and measuring 9.23cm in length, the Sigma 16mm F1.4 DC DN C is quite a compact lens given its fast f/1.4 aperture. As seen in the photos below, it complements a camera like the new Panasonic G9 very well. Holding the camera and hanging out over the edge of the pier, there was a starburst effect from the sun that was just disappearing behind a cloud. What I Liked and What Could Be Improved With This Lens he message appears even when the software and the lens are appropriate, close the Lens System Software Updater and remove the cable and power OFF the camera. Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe chromatic aberration gives a noticeable fringing or a halo effect around sharp edges within the picture. It can be cured in software. The 16mm F1.4 lens gives you an equivalent of 24mm with a DX camera, such as the Nikon Z30, Nikon Z50 or Nikon Zfc. This is a good “standard” walkaround length for typical subjects such as landscape and even street photography work. It’s significantly wider than the closest Nikon DX lens prime lens, which is the Nikkor Z DX 24mm f/1.7 lens, which gives an equivalent focal length of 36mm.

Unfortunately, none of the lenses in Sigma’s trio offer stabilization which is rather unfortunate for video users. I personally love manual lenses, but I know most people prefer the convenience and reliability of autofocus, so it definitely serves a limited market.It’s also worth noting that although these lenses are designed for APS-C cameras, you can also use them with full-frame bodies, like the Nikon Z6 II, with the camera automatically switching to crop mode if you do. You might therefore consider it a good alternative to the Nikkor Z 24mm f/1.8 S lens, which costs more than twice that of the Sigma. It introduces compatibility with the “focus ring control” function of the camera, allowing either “linear” or “non-linear” focus movement to be selected when using MF. With 16 elements in 13 groups, the optical system features a multitude of high-tech and high-end components, including three FLD glass elements, two SLD glass elements, and two molded glass aspherical elements. This optical system minimizes optical aberrations and ensures outstanding resolution at wide-open aperture and throughout the aperture range. In particular, the two aspherical lens elements have ultra-high-precision surfaces polished to tolerances under 10 nanometers, minimizing the onion ring bokeh effect that some aspherical elements produce and ensuring clear image quality throughout the frame. In addition, the structure of the optical system gently bends light to minimize sagittal coma flare and deliver optimal optical performance from the center of the frame to the edges. The result is a smooth, round bokeh effect with ample light volume throughout the frame. Sharpness remains very good across the whole image frame, right into the corners (Image credit: Matthew Richards) Chromatic aberrations, typically seen as purple or blue fringes along contrasty edges, can be detected in quite a lot of our sample shots - this is definitely one of the Sigma 16mm F1.4 DC DN C's weaker points in terms of image quality.

After connecting the camera to the PC properly, select the “Next” button in the “Lens System Software Updater” and the below message will appear on the display;

The lens weighs less than half a pound (0.48lbs), it’s roughly three inches long and takes 55mm filters. Quite impressive for a lens that has a maximum aperture of f/1.4. This lens is noticeably smaller Sigma 16mm f/1.4 it’s competing against. Like the Sigma 16mm, the Sony is dust and moisture resistant. I didn’t get to test the lens out in the rain, but I have subjected G series lenses to light showers before and they have faired just fine. I’m sure it will be the same story with this lens. Sharing its development concept with the SIGMA 30mm F1.4 DC DN | Contemporary, the 16mm F1.4 DC DN | Contemporary features a lens structure with 16 elements in 13 groups and includes the finest materials. This lens effectively minimizes optical aberrations and offers superb resolution at wide-open aperture and throughout the aperture range. The optical design and stepping motor deliver smooth autofocus during video shooting, while the mount features a special sealing for a dust- and splash-proof design.