The bright standard zoom lens “24-70mm F2.8 DG DN | Art” designed exclusively for full-size mirrorless, which has long been awaited by users of α7 series and L-mount machines, has appeared from Sigma. Not only is it excellent in depiction performance, but because of the ambitious pricing for this class of large-aperture zooms, there are a lot of reservations before it is released. It has become so popular that Sigma quickly announces shortages due to supply shortages. For illustration and ease of use, I installed it on Sigma's full-size mirrorless “SIGMA fp” and made an impression.
Lighter and cheaper than SLR lenses
Speaking of the standard zoom lens of 24-70mm, it is one that is the core of the interchangeable lens camera. "24-70mm F2.8 DG DN | Art" designed exclusively for mirrorless interchangeable-lens cameras has become compact and light in weight.
This time, I took a picture with Sigma's full-size mirrorless “SIGMA fp”, but I was able to confirm a satisfactory depiction in every scene, such as wide end, tele end, and full aperture. Since it is 185g lighter than "24-70mm F2.8 DG OS HSM | Art" for single-lens reflex cameras, it can fit in a total of 835g when combined with fp. Since it is often used as a main lens, this lightness will be effective when shooting for a long time.
The lens configuration consists of 19 elements in 15 groups, and uses abundant glass materials such as FLD glass, SLD glass, and aspherical lenses, and I felt that high delineation performance was ensured throughout the entire zoom range. The coating also has Sigma's original “Nanoporous Coating”, which says that clear image quality can be obtained even in backlight.
The usability is also a good impression. When carrying a zoom lens, the lens barrel may extend out, but there is no need to worry because this lens has a lock switch. Moreover, the structure can be unlocked by simply rotating the zoom ring.
The AFL button on the side can be assigned various functions in addition to the default AF lock. The lens hood also has a lock, so it won't come off unexpectedly. The lens is dust- and splash-proof and can be used in harsh environments.
I felt that it was a standard zoom lens for a new generation full-size mirrorless camera that had the same image quality, size and weight, price and triple beat.