Despite its short zoom range and large size, the SIGMA 28-45mm F1.8 DG DN | Art is an intriguing lens, due to its large aperture and outstanding optical performance, even wide open. It’s the world’s first full-frame zoom with a large f/1.8 aperture. For photographers it can replace two or maybe even three prime lenses. For videographers it offers the possibility of getting a shallow depth of field that was previously only possible with primes. With this zoom, they can have all that plus the flexibility of getting exactly the right crop by just twisting the zoom ring. This allows them to go from a wide to a standard shot without having to change lenses. Of course, it’s also a great lens to have when the light is dim.
