Product Description
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 for
various shooting situations, as well as an ultra-compact option for full-frame
bodies.
Large F2.8 aperture and superb image quality
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' 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.
Exceptionally compact and lightweight body ideal for mirrorless cameras
The SIGMA 18-50mm F2.8 DC DN | Contemporary is remarkably compact, matching the
portability of APS-C mirrorless camera bodies. This makes it a perfect workhorse
lens that is ideal for general day-to-day use. The lens is currently the
smallest and lightest in its class, boasting a maximum diameter of 65.4mm, a
length of 74.5mm and weight of 290g, yet still maintains a constant aperture of
F2.8.
To keep the lens as light as possible, SIGMA constructed the body from carefully
selected materials. A polycarbonate called Thermally Stable Composite (TSC) was
used for the construction of the barrel, which is sleek, robust, and importantly
has a thermal conductivity close to that of aluminum. This ensures stable
performance and good operability when used in changing temperatures. By
deliberately using metal for some of the internal structure, the parts could be
much thinner and have a higher rigidity, ensuring the lens can stand up to
frequent, heavy use.
Supports various shooting situations
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, as well as gimbal shooting,
one-person 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 12.1cm and maximum magnification of 1:2.8 (at 18mm), making it also ideal for
close-ups.
Combined with the "Pocketable Full-Frame" SIGMA fp, the total weight is only
712g, and it can also be useful as an ultra-compact option for full-frame
cameras (used in crop mode) to keep weight down.
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