A large F2.8 aperture zoom lens that need never leave your camera
This exceptionally small, light and bright standard zoom for crop-sensor mirrorless cameras is the ultimate workhorse lens.
SIGMA's first APS-C size mirrorless zoom lens has a versatile full-frame equivalent zoom range of 27-75mm, which makes it ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture and events. It can also be used for macro-style close-up photography owing to its maximum magnification of 1:2.8, which allows a minimum focusing distance of just 12.1cm. In terms of its bright F2.8 aperture, it makes for easier hand-held low-light shooting and provides a shallow depth-of-field for high-impact results.
Autofocus is exceptionally fast and quiet thanks to the stepping motor, which can be particularly useful when shooting video, or fast-moving subjects such as children and animals. The lens' exceptionally small and light form factor that weighs less than 300g makes it perfect as a first interchangeable lens, as well as a sub-lens for full-frame bodies, as well as for various shooting situations.
The SIGMA 18-50mm F2.8 DC DN | Contemporary covers 27mm to 75mm in the 35mm format, and has a wide aperture of F2.8 throughout the entire zoom range. This makes it easy to achieve blurry backgrounds, which is ideal for shooting attractive portraits and close-ups. The bokeh is smooth and attractive so doesn't distract from the in-focus subject.
The lens's three high-precision glass-molded aspherical elements coupled with the minimization of the total number of elements yields superb optical quality without excessive weight, and the use of in-camera aberration correction further eliminates optical imperfections such as distortion and vignetting. This has all been made possible by the latest optical design technology at SIGMA's only production base in Aizu, where all SIGMA lenses are built.
The SIGMA 18-50mm F2.8 DC DN | Contemporary has fast and near-silent AF that makes it perfectly suited to a range of photographic applications, including shooting in quiet environments, recording videos and capturing fast-moving subjects. This has been achieved by using a stepping motor as the AF actuator. Since it is small and lightweight, it can be used flexibly in situations such as handheld shooting, which requires high mobility, gimbal shooting, one-man operation video shooting and vlogging.
With an emphasis on making the lens as versatile as possible in a wide variety of shooting conditions, SIGMA designed the lens with a minimum focusing distance of 12.1 cm and magnification of 1:2.8, making it also ideal for close-ups.
Note: The minimum focusing distance and magnification are both values at the wide end.
Combined with the "Pocketable Full-Frame" SIGMA fp, the total weight is only 712g, and it can also be useful as a sub lens for full-frame cameras (used in crop mode) to keep weight down. The 18-50mm F2.8 DC DN | Contemporary, which combines compactness, light weight, high performance, and large aperture, supports a variety of shooting situations, from introductory single-lens mirrorless cameras to video shooting and combination with full-frame cameras.
Specifications
Focal Length 18-50mm / F2.8
Lens Mount Sony E-Mount
Lens construction 13 elements in 10 groups, with 0 FLD lens, 1 SLD lens and 3 Aspherical lenses
Angle of View 76.5-31.7 Degree
Number of diaphragm blades 7 (Rounded diaphragm)
Minimum aperture F22
AF Actuator STM
Minimum Focusing Distance 4.8-11.9" (12.1-30cm)
Maximum magnification ratio 1:2.8-1:5
Filter Size Diameter: 55mm
Hood Petal-type lens hood
Dimensions (Dia x L) 2.4 x 3" (61.6 x 76.5mm)
Weight 10.2 oz (290g)
