The Sony a7 III is a well-rounded camera suitable for both photo and video applications in a variety of working situations. Refined for improved speed and low-light performance, a new 24.2MP Exmor R BSI CMOS sensor and BIONZ X processor benefit image quality, video capabilities, and AF performance. Also, it enables internal UHD 4K video recording with a wide dynamic range using the full width of the full-frame sensor. The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with the ability to capture an impressive 15-stop dynamic range at low sensitivity values. The sensor and processor combination also avails fast continuous shooting at up to 10 fps at full resolution, for up to 177 consecutive frames, and with full-time AF/AE when working with either a mechanical shutter or an electronic shutter. Full HD 1080p recording is also supported in frame rates up to 120 fps, and both 4K and FHD resolutions utilize the 100 Mb/s XAVC S format contained within an MP4 wrapper with 4:2:0 sampling. In addition to high-resolution internal recording, uncompressed HDMI output also enables the use of an optional external recorder for clean 4K recording with 4:2:2 sampling. 

Affording extensive customizable color and gamma controls, the a7 III allows users to adjust the gamma, black level, knee, color level, and more.HLG (Hybrid Log-Gamma) support is available, along with the BT.2020 color space, for recording within a wide color gamut and, in addition to S-Log2, S-Log3 is also available for producing an effective 14-stop dynamic range with increased grading control in the shadow to mid-tone regions of the image. This Fast Hybrid AF System now achieves twice the focusing speed and more reliable tracking compared to previous a7 models, as well as improved low-light focusing. Expand Flexible Spot employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus. Rear touchscreen can also be used for Touch Focus control and a Touchpad Focus Control mode lets you use the rear screen intuitively while keeping your eye on the viewfinder. This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake. All shooting styles will get usage out of the roll compensation.

All 5 axes of stabilization will function at all times, even when used with third-party lenses and adapters or lenses with built-in optical stabilization. In addition to the EVF, a 3.0" 922k-dot rear LCD is also available, which has a touch panel design for intuitive operation and focusing control. The screen also tilts upward 107° and downward 41° to benefit from high and low angles. The lens mount has also been improved to better support heavy lenses and the grip rigidity has been improved for more comfortable hand-holding. Dual SD memory card slots allow for flexible file saving and handling and can be configured to partition raw and JPEG files or can be used for overflow recording. One of the card slots is rated to support UHS-II memory cards. Built-in Wi-Fi enables the a7 III to instantly share imagery to mobile devices for direct sharing online to social networking, via email, and to cloud storage sites. Once connected, the linked mobile device can also display a live view image on its screen and remotely control the camera's shutter.

The FE 24-105mm f/4 G OSS Lens from Sony is a wide-angle to short-telephoto zoom designed to be an ideal one-lens solution for everyday shooting. The flexible focal length range pairs with a bright constant maximum aperture, impressive optics, and intuitive handling to make it a suitable option for walk-around shooting, street subjects, travel, and event photography. Four aspherical elements are featured in the optical design, including two Advanced Aspherical elements, and noticeably reduce spherical aberrations and distortion throughout the zoom range for improved sharpness and clarity. A Nano AR Coating has been applied to reduce surface reflections, flare, and ghosting for increased contrast and color rendering in strong lighting conditions. Constant f/4 maximum aperture offers consistent performance throughout the zoom range and also lends greater control over focus position for shallow depth of field techniques. Optical SteadyShot image stabilization helps to minimize the appearance of camera shake for sharper imagery when shooting handheld with slower shutter speeds. The front lens element features a fluorine coating to protect against smudges and dust from adhering to the glass surface. Direct Drive Super Sonic wave AF motor and internal focus mechanism provide quick, quiet, and precise autofocus performance and also contribute to more natural, intuitive manual focus control.