Sony Alpha 7 IV (ILCE-7M4) + Sigma 16-28mm f/2.8 DG DN Contemporary

New standards for full-frame cameras
With impressive image quality in 33 megapixel resolution, video recording in 4K 60p, precise handling and fast sharing functions, the Sony Alpha 7 IV sets new standards for full-frame cameras as the perfect hybrid camera. Creative and professional photographers will always have the best Sony technology at hand to realize their ideas with the α 7M IV and its first-class real-time autofocus for photo and video recording.

Unique image quality
The back-illuminated 33 megapixel Exmor R full-frame sensor with high-speed readout, high sensitivity and highly accurate color reproduction, together with the high processing power of the new Bionz XR image processor, ensures outstanding image quality. Thanks to high ISO sensitivity (expandable to ISO 50-204800 for photos and 100-102400 for videos) even in low light. In addition to the two classic RAW and JPEG formats, the HEIF format (High Efficiency Image File) is also available for photos. Thanks to the 4:2:2 color sampling and 10-bit color depth inherent to this format, even the finest gradations are reproduced naturally and realistically.
The 7 IV has two media slots that support UHS-I and UHS-II SDXC and SDHC cards. In addition, one of the slots is compatible with CFexpress type A memory cards. This means that even high read and write speeds are possible without any problems.

Improved selection and editing
The Sony 7 IV offers ten unique in-camera presets for photos, videos and live streams. This allows you to create your own individual image looks in the camera and share your pictures with the world quickly and easily without any time-consuming post-processing.
The optionally adjustable Soft Skin effect ensures a radiant complexion, reduces wrinkles, skin irritations and dull areas and emphasizes eyes and mouth.

A new take on autofocus
Faster, more accurate and more precise: the advanced hybrid autofocus recognizes subjects (people, animals and birds) thanks to the latest real-time tracking technology and keeps them reliably in focus. Even with fast and unpredictable movements. Real-time tracking can be easily applied to any subject in the frame by touch and can be activated in addition to eye autofocus when detecting eyes.
Focus functions already familiar from the Sony Alpha 1 and α 7S III, such as focus switching or user-defined subject tracking sensitivity, offer new, creative possibilities in video design.
The powerful memory buffer allows up to 800 images at up to 10 frames per second with AF/AE tracking. So you'll never miss a subject again! The AF Assist function supports focus transitions and thus ensures a clean change between auto and manual focus.

Intuitive operation
With a fast and sharp Quad VGA OLED electronic viewfinder with 3.69 million pixels, a new, tilting 3-inch touchscreen and an integrated 5-axis image stabilization system, the α 7 IV ensures a pleasant shooting experience and blur-free images.
The intuitive menu system with touch function allows settings to be changed quickly and easily. The function of the rotary dial on the back can be individually assigned to suit your needs. A special mode dial for allows quick and easy switching between photo/video/slow-motion and time-lapse recording.

High-quality video recording
Record videos in impressive 4K quality at up to 60p, with full pixel resolution and without pixel binning. Sophisticated filmmakers can use the α 7 IV to record content in 10-bit depth and 4:2:2 color sampling and produce cinema-quality images with the S-CINETONE/S-LOG 3 image profiles without much post-production work.
The α 7 IV also offers unique video tools such as a digital focus map and innovative breathing compensation, which are only available for Sony E-Mount Lenses. Thanks to the heat dissipation structure, video recordings over a long period of time are no problem.

Shake-free images
The integrated 5-axis optical image stabilization (IBIS) ensures shake-free images. Active mode provides reliable support for hand-held video recordings and compensates for camera shake. Shake can also be eliminated afterwards thanks to the recording of gyro and lens data.

Live streaming made easy
With the Alpha 7 IV, you can stream live content at up to 15p in 4K or 60p in Full HD. Even without a memory card. Thanks to the latest generation 3.2 USB-C connectivity, no additional software is required. With the ultra-fast Wi-Fi chip and automatic Bluetooth image backup mode, you can stream your images instantly and share them with the whole world.

More power for high-quality shots
In addition to the efficient NP-FZ100 battery, the α 7 IV offers the option of an external power supply with USB connection and mains adapter. For even longer shooting times, the camera can be connected to a charger or mobile battery via the USB-C port.

Cutting-edge technology from Sony
The Sony Alpha 7 IV benefits from Sony's parallel Lenses and camera development. Choose from more than 40 original full-frame Sony lenses to unleash your creativity. Lenses specially designed for Sony cameras make it easy to take top quality shots.

Durable, lightweight, powerful. The Sigma 16-28mm f/2.8 DG DN | Contemporary for Sony FE mount impresses with its incredibly compact design, a weight of only 450g and a constant f/2.8 speed. It is perfectly suited for architectural and street photographers who want to carry their equipment with them for several hours and still not compromise on quality.

Fast, silent autofocus

Whether shooting street photography, or video, focusing noise is always distracting. Here, the 16-28mm relies on a stepper motor, which makes the autofocus not only fast, but also silent. When using manual focus, you get a linear manual focus curve, which allows you to readjust the manual focus very smoothly and accurately.

Image quality that delights

As you would expect from Sigma, the 16-28mm f/2.8 DG DN | Contemporary FE mount scores with clear, high-contrast images and unmatched sharpness. This is achieved through Sigma's Super Multi-Layer Coating (SML). The Lens is equipped with five FLD lenses and four aspheres, resulting in almost no chromatic aberrations. Particularly in the wide-angle range, sharpness that extends all the way to the corners of the image is especially important. Exactly this point is perfectly fulfilled by the Sigma 16-28mm f/2.8 due to the excellent image field curvature.

Bokeh & aperture of the Sigma 16-28mm f/2.8 DG DN

The bokeh of the 16-28mm is circular and smooth throughout due to the 9 built-in aperture blades.

Simple and practical design

As a wide-angle zoom, the 16-28mm f/2.8 is particularly notable for its compact size (10cm in length) and light weight of just 450g. In addition to sealing against dust and splashing water, a solid brass bayonet also contributes to the Lens's durability. The selected materials ensure that this will not affect the 16-28mm f/2.8 DG DN | Contemporary performance, even in the face of wildly fluctuating temperatures. Adding to the well-designed construction is the AF-MF switch, which allows you to switch between automatic and manual focusing at will without using the camera menu.

Other special features of the Sigma 16-28mm f/2.8

The 16-28mm f/2.8 DG DN | Contemporary Sony E-Mount is completely dimensionally stable due to its internal zoom, which is especially handy when used with a gimbal, as the Lens remains balanced throughout. As you would expect from Sigma, this Lens features a brass bayonet.

What's behind the name?

Contemporary

Sigma's Contemporary product line offers high-performance all-around lenses for everyday use, as it combines high optical quality with compact design and light weight. The product line includes standard, telephoto, and zoom lenses that are suitable for a wide range of applications, from snapshots to landscape photography to travel photography.

DG

DG Lenses - SIGMA's DG lenses are designed for demanding use on digital cameras with sensors up to 24x36mm (colloquially known as full-frame). By using state-of-the-art coating processes, ghosting caused by reflections on the sensor surface is successfully eliminated, while at the same time achieving balanced colors and superior optical performance.
Since these Lenses also illuminate the analog film format 24x36mm, their use is also possible on some suitable analog cameras, although we ask you to consult us on a case-by-case basis.

DN

DN Lenses - High performance lenses designed exclusively for mirrorless interchangeable lens cameras. The latest technology in lens development ensures high optical performance, compact design and quiet autofocus. Superior telecentricity ensures sharp, high-resolution image quality across the entire image plane.

IF

Internal Focusing (IF) - With internally focused Lenses, only one or more groups of lenses are moved inside the Lens for focusing. As with rear-focus lenses, this results in many advantages: Internal focusing provides faster and quieter focusing. With IF lenses, the build length of the Lens remains constant during focusing and the front lens does not rotate, allowing you to conveniently use polarizing filters and a tulip-shaped lens hood. Since the overall length of the Lens remains constant during focusing, there is no noticeable weight shift during focusing with this system. As a result, the Lens is well balanced at all times.

Other product features:

• Lens construction: 16 elements in 11 groups, with five FLD and four aspherical lenses
• Internal zoom
• Internal focusing
• Compatible with high-speed autofocus
• Stepper motor
• Front filter thread (Ø 72mm)
• Supports aberration correction
• Function only available in combination with supporting cameras. The possible corrections and auto correction may differ depending on the camera model.
  When turning on/off the aberration correction in the camera menu, please set all correction options to "On" ("Auto").
• Supports DMF and AF+MF
• Super Multi-Layer Coating
• Focus mode switch
• Tulip-shaped lens hood (LH756-01)
• Dust and splash proof lens mount
• Switching between a linear and non-linear gear ratio of the focus ring (for L-mount only)
• Reflection and ghost minimizing design
• Nine rounded aperture blades
• High-precision and robust brass bayonet
• Handcrafted quality "Made in Japan"
• Every single lens passes through SIGMA's proprietary MTF measurement system

Technical Data:

The data below refers to the L-mount version.
Lens construction: 11 groups, 16 elements (five FLD and four aspherical lenses)｜Field angle: 107.0° - 75.4°｜Number of aperture blades: 9 (round aperture)｜Smallest aperture: F22｜Nearest focusing distance: 25cm｜Largest magnification: 1:5.6｜Filter diameter: Ø 72mm｜Dimensions (Maximum diameter × length): Ø 77.2mm × 100.6mm｜Weight: 450g