From the first images, it’s obvious that the Sirui Sniper 16mm lens is capable of capturing exceptionally high-quality images with excellent centre sharpness and minimal distortion. However, some edge distortion is noticeable due to its ultra-wide-angle nature. The f/1.2 aperture is the big feature here. In lower light conditions it significantly boosts what you can do in low-light shooting situations, making it ideal for indoor and evening photography. The specular highlights created by light will enable you to create a shallow depth of field around your subjects with a decent bokeh effect in the background.
When mounted on the Sony A7 IV, albeit a full-frame camera shooting in APS-C mode, the 16mm lens performs well with the 24mm equivalent focal length, minimizing distortion, although there is some softness towards the edges of the frame. Compared to the rest of the Sniper series, the 16mm offers an ideal solution for landscapes, but with that f/1.2 aperture, it equally does well for atmospheric portraits where the wide field of view can be fully utilized.
While the lenses are relatively cheap with a slant towards video, the entire line does offer autofocus. On the Nikon system that I tried with the 23mm, 33mm, and 56mm lenses, the autofocus system is generally good. However, on that camera, a good contrast edge is generally needed for the lens to fix on focus in lower light conditions. However, with the 56mm and 33mm lenses, which are more suited for portraiture, the 16 mm wide angle is perfect for landscape, architecture, and street photography, where there are usually plenty of contrast edges for the camera and lens combo to anchor to. On the A6700, the AF on the 16mm is much the same as that on the Z50 with the rest of the range, and the larger A7 IV does see a slight boost in speed. These lenses are fast to focus but need to be more accurate with the speed and accuracy that you get with Sony’s ranges.
When it comes to image quality in normal lighting conditions, the lens delivers vibrant and sharp images with minimal chromatic aberration. However, the edge-to-edge sharpness can vary, and stopping down to f/5.6 or f/8 significantly improves overall image clarity, reducing the softness at the peripheries that can occur at wider apertures. This mirrors the performance characteristics observed in the 23mm and 33mm lenses, which also exhibit their sharpest results around these apertures.
Thanks to the STM motors, the 16mm lens provides smooth focus transitions and silent continuous autofocus motion for videography. As the lens is wide-angle, the need for large focus swings is often minimal, making it great for filming opening scenes.