Product Highlights
- New image sensor with double the readout speed : The newly developed back-illuminated full-frame Exmor RTM CMOS sensor, with 12.1 effective megapixels15, boasts a readout speed up to twice as fast as that of the α7S II, along with high sensitivity and wide dynamic range. An advanced colour filter array boosts colour reproduction accuracy, while focal plane phase-detection AF enables substantial increases in autofocus stability and precision, all of which contribute to outstanding image quality.
- New image-processing engine with up to 8x the processing performance : The BIONZ XRTM image-processing engine boasts a performance level up to eight times that of the previous processor, minimising latency while markedly improving real-time processing capabilities for both movies and stills. The engine performs real-time processing of AF, image recognition and image-quality adjustments, while also handling data transfer, user interface and other camera operations.
- High sensitivity, wide dynamic range : The full-frame 12.1-megapixel16 configuration enables high sensitivity with low noise throughout the camera's sensitivity range by optimising the output signal from the sensor. The standard ISO range is 80-102400, which is further expandable to 40-409600 (80-409600 for movies). The dynamic range is an impressively wide 15 stops17, for beautiful, true-to-life images without blown highlights. Together, the camera's high sensitivity and wide dynamic range expand your creative freedom during shoots.
- All-Intra internal recording : In addition to Long GOP inter-frame compression, the α7S III supports internal intra-frame (All-Intra) recording20 for the first time in an α-model body, where each frame is recorded independently at a high bitrate of up to 600Mbps. This can be useful for certain types of shoots as it allows maximum flexibility in post-production editing. [1] All-Intra (All-I) [2] Long GoP [3] Group of Pictures
- Full-frame 4K recording at 120p : Full-frame 4K recording at 120fps18 with autofocus is possible thanks to the high-speed readout capabilities of the new image sensor working in tandem with the newly developed, powerful BIONZ XR processor. This high image-quality 4K, with full-pixel readout without binning, allows for clear post-produced slow motion (up to x5 slower than real time)19, as well as bokeh effects typical of full-frame cameras, all with smooth, high-precision autofocus. Despite the α7S III's compact size, it provides impressive scope for your creativity.