Large-aperture lenses with small F-numbers are gaining popularity for interchangeable lens cameras such as full-size mirrorless cameras. Not only is it possible to capture beautiful images without increasing sensitivity even in dimly lit scenes, but the expression of bokeh will be large and impressive. F1.4 is the standard for 35mm class wide-angle lenses, but the mirrorless lens “ 35mm F1.2 DG DN '' released by Sigma has attracted much attention for its brighter F1.2. . A Mitsui photographer attached to the L-mount full-size mirrorless "SIGMA fp" and checked his ability.
The lens itself is heavy and weighs over 1kg!
Sigma's "35mm F1.2 DG DN" is a large aperture lens with an aperture of F1.2, which is slightly brighter than the standard aperture of F1.4. The open F1.2 lens is the first motivation for Sigma. As can be seen from the name of "DG DN", it is designed exclusively for mirrorless cameras, and it is said that sharp images can be obtained from the open aperture.
The looks follow the trend of Sigma's design trend "SGV [Sigma Global Vision]". I felt that the solid and cool impression matched when combined with fp.
In contrast to the world's smallest and lightest fp with a full-size mirrorless lens, this lens has a very voluminous finish. The filter diameter is 82mm, the total length is 136.2mm, and the weight is 1,090g, which is comparable to a large-diameter zoom lens. When attached to the fp, I felt that it was well balanced and easy to use when used with the separately sold LCD viewfinder "LVF-11".
We are satisfied with depiction performance and three-dimensional impression usable from full aperture
The lens configuration consists of 17 elements in 12 groups, with three SLD glass elements and three aspherical lenses including a double-sided aspherical lens. It is said that the lens was designed to be high-definition by effectively using the in-camera correction function for distortion aberration and vignetting, after having made an optical design specifically for mirrorless cameras with a short flange back. With a dust-proof and drip-proof mechanism that can withstand use in harsh environments, and a water-repellent and anti-fouling coating on the front of the lens, it can be used outdoors with confidence.
I also felt that the image has sharpness that can be used with confidence from the maximum aperture. With an aperture of F1.2, the focus is extremely thin, but the AF performance of fp is excellent, and I could use it with the aperture open. Because it is full size, the bokeh when opened is large and rich, and it gives viewers the full sense of depth and three-dimensionality. Of course, if you stop down a little, the sharpness and contrast will improve dramatically, and you will see a sharp description.
It is a fun lens to think about how to create a picture with a universal angle of view of 35mm with the brightness and bokeh of F1.2. If you want to shoot a special work with L mount and E mount, you should try it once.