CONTEMPORARY

50mm F2 DG

CONTEMPORARY

50mm F2 DG

Available Mounts

L-MOUNT（BLACK）
L-MOUNT（SILVER）
SONY E-MOUNT（BLACK）

Compact 50mm. Big Surprise.

Performance beyond expectations condensed into a small body.
50mm F2 joins the “Premium Compact Prime” I series.

The Sigma 50mm F2 DG | Contemporary features high optical performance with a bright F2 aperture, that creates expressive images with a shallow depth of field and beautiful bokeh effects. With its compact size, this popular classic focal length is perfect for portraits, street and everyday photography. The lens has been designed to be used over a long period of time. Using that same technology that Sigma used to create the Sigma CINE lens range, the 50mm F2 DG | Contemporary uses an all-metal construct that is robust and provides a premium feel.
All these elements combine to create an exceptionally versatile lens that can be used in a variety of creative ways to create images in outstanding definition. Perfectly suited to new photographers looking to take the next step, professionals who require reliable lenses and photographers who prefer smaller full-frame lenses that offer the best optical quality.

Camera Type	Mirroless
Corresponding Mount	L-Mount, Sony E-Mount
Sensor Format	Full-frame [DG]
Lens Construction	11 elements in 9 groups (1 SLD and 3 aspherical lens elements)
Angle of View	46.8°
Number of Diaphragm Blades	9 (rounded diaphragm)
Minimum Aperture	F22
Minimum Focusing Distance	45cm / 17.8in.
Maximum Magnification Ratio	1:6.9
Filter Size	φ58mm
Dimensions (Diameter × Length)	L-Mount：φ70.0mm × 68.0mm / φ2.8in. × 2.7in. Sony E-mount：φ70.0mm × 70.0mm / φ2.8in. × 2.8in.
Weight	L-Mount：350g / 12.3oz. Sony E-mount：345g / 12.2oz.
Edition Number	C023 The three-digit code on the surface of the lens is to indicate the year the lens was first released. (Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)
Supplied Accessories	LENS HOOD（LH633-02B／LH633-02S） MAGNETIC METAL LENS CAP（LCF58-02 MB／LCF58-02 MS） FRONT CAP（LCF-58 IV） REAR CAP（LCR III） Pouch
Mount / Product Barcode	L-Mount （Black）：00-85126-94200-7 L-Mount （Silver）：00-85126-94201-4 Sony E-mount （Black）：00-85126-94185-7
Camera Compatibility	LINK
	* L-Mount is a registered trademark of Leica Camera AG. * This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.

“Standard lens” that matches the optical performance standards set by the Sigma Contemporary line of lenses.

Sigma I series lenses are developed around the concept of “Compact everyday lenses with outstanding image quality” and the Sigma 50mm F2 DG | Contemporary is exactly that. It features high-quality optics in a compact size, perfect for a wide variety of photographic styles. Built from the ground up for mirrorless cameras, the Sigma 50mm F2 DG | Contemporary is constructed using a single SLD glass element and three aspherical lens elements that are excellent at correcting various types of aberration for clear, high-definition images.
The conflicting ideals of improving optical performance while reducing body size and weight are achieved through the latest optical design, and the processing and production technologies at Sigma’s only production facility in Aizu.
The 50mm focal length is mostly known for portrait photography, so careful consideration was taken when designing the lens, focusing on the smoothness of the bokeh created by the F2 aperture. Its optical design gives smooth transitions from in-focus to out-of-focus areas, and helps minimize flare and ghosting caused by backlit environments. The quiet stepping motor provides quick, reliable autofocusing for both stills and video.

Expanding the I series lineup.
“Creating pictures that are beyond beautiful”.

The Sigma I series features full-frame compatible lenses that offer new value to mirrorless systems. The combination of superb optical performance with a level of compactness that is perfectly suited to smaller and lighter modern mirrorless cameras will bring you new opportunities for a perfect shot. Sigma is aware that in today’s world we have a wide range of camera choices, especially with the increase in mobile phone ownership. But with many photographers looking for something more than something that simply captures images when they choose to own a camera and lens, I series lenses offer the ultimate combination of superb optical performance, outstanding usability and compact form-factor. Sigma’s excellence in development and production technologies has been built up since our founding in 1961 and became increasingly sophisticated with the introduction of the Sigma Global Vision brand in 2012. With this as a base, Sigma has given careful thought to the quality of the products, the feeling of using it and the pleasure of owning it. This is how the I series was born.

Exceptional I series build quality with a compact form-factor

All I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability that improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with Sigma’s cutting-edge metalworking technology are also used in Sigma’s CINE LENS lineup for professional cinematographers and provide a tactile, ergonomic feel that make the lens a pleasure to use.
A smooth hairline cover ring is used between the focus and aperture rings to act as a finger hold when attaching and detaching the lens.

Magnetic metal lens cap

I series lenses are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing touch for the I series.

Magnetic metal lens cap holder LENS CAP HOLDER CH-11 (sold separately)

When a cap is removed from the lens it should have a proper place where it can be kept. Using this as a starting point, a cap holder using the magnetic force of the dedicated cap was created.
With the cap attached to the ring plate, and the plate clipped to a bag or belt, the cap is always within easy reach and is less likely to get lost. Plus, its elegant design is a stylish addition to a photographer’s equipment.

LENS CONSTRUCTION

MFT CHART

DIFFRACTION MTF

GEOMETRICAL MTF

MTF CHART GUIDE

The MTF (Modulation Transfer Function) is one of the measurements for evaluating a lens’ performance, and it shows how faithfully the contrast of the subject can be reproduced on the image plane. The horizontal axis shows the image height (distance from the center of the image in mm) and the vertical axis shows the contrast value (maximum value is 1).
The closer the 10 line pairs/mm curve is to 1, the higher the contrast and clarity of the lens is, and similarly, the closer the 30 line pairs/mm curve is to 1, the better the resolution and sharpness of the lens is.

*The MTF chart depicts the result at the wide-open aperture.
*For mirrorless lenses that support distortion correction, the horizontal axis shows the image height equivalent to when an L-Mount lens is attached to a Sigma L-Mount camera with distortion correction applied. (The effect of distortion correction may differ depending on the mount and camera used.)
*The spatial frequency indicates the variation on the image plane before distortion correction is performed.

Inner focus system

To increase stability, this lens configuration uses movable internal lens elements that adjust focus without changing the length of the lens barrel.

Stepping Motor

The lens is capable of smooth, quiet and high-speed AF made possible by a stepping motor, as well as supports Face/Eye Detection AF and video AF.

Compatible with Lens Aberration Correction

Matching the optical characteristics of the lens, this function performs in-camera corrections of peripheral illumination, chromatic aberrations, distortion, and more, to further enhance image quality.

*Function available on supported cameras only. Available corrections or auto correction functionality may vary depending on the camera model.
*On cameras where lens aberration correction is controlled with ‘ON’ or ‘OFF’ in the camera menu, please set all aberration correction functions to ‘ON'(AUTO).

Super Multi-Layer Coating

Sigma’s own Super Multi-Layer Coating suppresses flare and ghosting by preventing reflections with in the lens. All lenses in the current Sigma range feature this original technology. In digital cameras, flare and ghosting may also be caused by reflections between the image sensor and lens surfaces. Here too, Sigma’s Super Multi-Layer Coating is highly ef fective, assuring images of outstanding contrast.

Aperture ring

Aperture ring, designed to help users work intuitively

Focus Mode Switch

Using this swich, it is possible to switch the focus mode between AF and MF.

Linear focus / Non-linear focus (for L-Mount only）

A focus movement method of interchangeable lenses for mirrorless cameras (DN lens) in relation to the rotational angle of the focus ring during manual focusing.
With “non-linear focus,” the amount of focal point movement varies depending on the focus ring rotational speed.
With linear focus, if the focus ring rotational angle is the same, the amount of focal point movement remains the same regardless of the focus ring rotational speed.

Mount with Dust and Splash Resistant Structure

The lens mount incorporates rubber sealing to protect the mount from dust and water drops.

High-precision, rugged brass bayonet mount

The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.

Rounded diaphragm

The polygonal shape of a conventional iris diaphragm causes out-of-focus light points to appear polygonal. A rounded diaphragm is designed to produce rounded out-of-focus light points when opened to near maximum aperture. This creates attractive bokeh effects in many situations, such as when photographing a subject against an out-of-focus surface of water from which light is being reflected.

Lens construction: 8 elements in 7 groups (2 aspherical lenses)

Compatible with high-speed autofocus

Support for DMF, AF + MF

LENS HOOD （LH633-02B／LH633-02S）

Magnetic metal lens cap （LCF58-02 MB／LCF58-02 MS）

Compatible with Sigma USB DOCK UD-11 (sold separately; L-Mount only)

Designed to minimize flare and ghosting

9-blade rounded diaphragm

High-precision, durable brass bayonet mount