The Alpha a7 III Mirrorless Digital Camera from Sony is a well-rounded camera suitable for both photo and video applications in a variety of working situations. This updated Fast Hybrid AF System employs a combination of 693 phase-detection points and 425 contrast-detection areas for quicker acquirement of focus in a variety of lighting conditions, and also maintains focus on subjects more effectively. Additionally, benefitting both stills and video operation, the a7 III utilizes a 5-axis SteadyShot INSIDE sensor-shift image stabilization, which is now effective to minimize the appearance of camera shake by up to 5 stops. Beyond just updates to the imaging system, the a7 III's body design has also been revised to include a rear 3.0" 922k-dot touchscreen LCD, which has a tilting design to better support working from high and low angles. Suiting the camera's use in trying conditions, the magnesium-alloy chassis and weather-sealing also render the a7 III dust- and moisture-resistant.  This sensor structure works with a gapless on-chip lens design and an anti-reflection coating to improve light collection and enhance detail.  Also, it enables internal UHD 4K video recording with a wide dynamic range using the full width of the full-frame sensor. 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. The apt focus system also lends itself to a variety of focusing functions for refined accuracy, including Lock-on AF, which maintains focus on moving subjects throughout the use of a configurable frame that is set over the desired moving subject, and Expand Flexible Spot, which employs neighboring focus points to retain focus on moving subjects even if the originally selected point loses focus.

This allows users to confidently use any lens, even adapted lenses, for critical imaging without encountering blur from camera shake. For long focal lengths, the system will correct for pitch and yaw adjustments. Macro and high-magnification imagery, on the other hand, will benefit from the inclusion of horizontal and vertical shift compensation. Full-frame 4K recording has also been dramatically improved for improved quality when working at mid to high sensitivities to permit full use of the entire sensor width. 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.  Also, users can use the same S-Log2 Gamma Curve that is found on high-end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal than traditional REC709, for increased post-production flexibility. 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. Weather sealing has been employed to resist dust and moisture for reliable operation in harsh weather conditions. 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. 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 for E-mount mirrorless cameras. Complementing the useful range of focal lengths is a constant f/4 maximum aperture, which maintains consistent performance throughout the zoom range and also affords increased control over the depth of field. A Nano AR Coating has also been applied to suppress lens flare and ghosting for high contrast and color accuracy when working in harsh light. Suiting both stills and video shooting, a Direct Drive Super Sonic wave AF motor, along with an internal focusing design, provides quick and quiet focusing performance as well as natural manual focus control. Additionally, this also features a weather-resistant physical construction, along with a fluorine-coated front element, to enable its use in trying weather conditions. A 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. Three extra-low dispersion elements are also used to minimize color fringing and chromatic aberrations for greater color accuracy. A 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. A dust- and moisture-sealed design better permits working in inclement conditions and rubberized control rings benefit handling in colder temperatures.