Sony Alpha 7R IV Full-frame Mirrorless Interchangeable-Lens Camera
Beyond Detail – Resolution and Speed
Thanks to an evolutionary leap in image processing power and efficiency, the Alpha 7R IV combines world’s first1 high-resolution 61MP2 back-illuminated Exmor R CMOS image sensor with impressive shooting speeds at up to 10 fps4 with full AF/AE tracking, as well as beautiful 4K8 HDR video, wide 15-stop3 dynamic range and high sensitivity with area specific noise reduction.
World’s first1 61MP2 pixels full-frame sensor
The Alpha 7R IV features the world’s first1 35mm full-frame back-illuminated CMOS image sensor with 61MP2 effective pixels, delivering depth and dimension that was once only available in medium-format cameras. The back-illuminated structure and effective area specific noise reduction techniques combine to deliver an extraordinary blend of low noise and high sensitivity for enormous imaging potential.
1 As of July 2019, based on Sony survey of digital cameras with a full-frame image sensor
2 Approximately, effective
15-stop3 dynamic range
The Alpha 7R IV boasts an impressive 15-stop3 dynamic range at low sensitivities, resulting in smooth natural gradations ranging from deep shadows to highlights, and utilizes algorithms from many of the latest Alpha™ cameras to maintain outstanding color reproduction.
3 Still images. Sony test conditions
BIONZ X processing maximizes sensor potential
Advanced Detail Reproduction Technology and Area-specific Noise Reduction - both features of Sony’s BIONZ X image processing engine - have been carefully tuned to maximize the performance of a sensor that offers approximately 1.5 times more resolution than the highly acclaimed Alpha 7R III, achieving extremely fine, realistic reproduction of textures and details.
Low noise at High ISO
A standard ISO range that extends from ISO 100 up to ISO 32000 with undiminished quality is expandable to ISO 50 to ISO 102400 for still images, make it possible to achieve optimum image quality in just about any light. Noise is effectively minimized even at high sensitivities, maintaining excellent image quality even with this sensor’s high pixel count.
16-bit processing and 14-bit RAW output
Image sensor output is processed in 16-bit form by the front-end LSI and BIONZ X image processing engine before being output as compressed or uncompressed 14-bit RAW files that have smoother, more natural gradations for higher overall image quality. 14-bit RAW output is available even when shooting in silent or continuous mode11.
11 Limited to 12 bits during compressed RAW continuous shooting, BULB exposure, or when Long Exposure NR is ON
Serious speed up to 10fps4 with AF/AE tracking
An advanced mechanical shutter unit and updated image processing algorithms allow the innovative new full-frame Alpha 7R IV to shoot full 61MP2 resolution images at up to 10 fps4 with continuous and accurate autofocus and auto exposure (AF/AE) tracking for up to approximately seven seconds in JPEG and RAW, and approx. three times as long in 26.2MPii APS-C crop mode. These high-speed options ensure that fast moving subjects can be captured with extreme accuracy and incredible image detail.
2 Approximately, effective
4 Up to 10 fps in “Hi+” continuous mode with mechanical shutter. UHS-II compatible SDXC memory card. Sony test conditions. Up to 68 Extra Fine/Fine JPEG or compressed RAW images can be captured at 10 fps in continuous “Hi+” mode, and up to 8 fps in continuous “Hi” mode. Maximum fps will depend on camera settings.
4D FOCUS – Wide, fast, reliable AF gets the shot
The new image sensor in the Alpha 7R IV features 567 phase detection points in a high-density focal plane phase-detection AF system, covering approximately 99.7% of the image area vertically and 74.0% horizontally. High-density focal plane phase-detection works with 425 contrast AF points in a Fast Hybrid AF system that can handle a huge volume of data at high speed, snapping rapidly into focus with just about any subject and situation. Tracking performance has been improved too, despite the significant increase in resolution.
Real-time Autofocus Tracking5
Real-time Tracking5 is a state-of-the-art feature that employs artificial intelligence to tenaciously track moving subjects when shooting stills or movies. Accurate focus is maintained automatically while the shutter button is half-pressed. The subject to be tracked can also be specified by touching it on the monitor when the Touch Tracking function is engaged. An advanced subject recognition algorithm uses color, pattern (brightness), and subject distance (depth) data to process spatial information in real time. If the subject is a person, AI is used to detect and keep track of the subject’s eye and face in real time for extremely high tracking precision. The focus area will seamlessly change between face and eye according to the condition of the subject.
5 This function does not track animal eyes
Real-time Eye AF
Real-time Eye AF employs artificial intelligence to detect and process eye data in real time, and track the subject’s eye with unprecedented precision. This function can be activated via an assigned custom key, or by simply pressing the AF-ON button or half-pressing the shutter button. When used with the Real-time Tracking function, tracking will continue even if the camera is temporarily unable to locate the subject’s eye, so it is easier than ever to shoot dynamic portraits of moving subjects. In addition to automatic eye selection when using Eye AF, it is also possible to manually preselect the subject’s right or left eye5.
5 This function does not track animal eyes
Real-time Eye AF for animals6
Advanced AI-based subject recognition technology now allows fast, precise, automatic detection and tracking of animal eyes6. This new capability can vastly increase success rates when photographing animals in a variety of settings or pets at home. Real-time Eye AF animal mode can be initiated either by pressing an assigned custom button or by half-pressing the shutter button.
6 Accurate focus may not be achieved with certain subjects in certain situations. Stills only. “Animal” mode must be selected via the Face/Eye AF Settings menu before shooting.
Enhanced dust and moisture resistance14
Dust and moisture resistance14 have been significantly improved with refinements throughout the body. Additional sealing is provided at all body seams as well as the battery compartment cover, and the media slot now has a double sliding cover rather than the previous hinged cover to keep water out. A redesigned lens lock button and additional cushioning around the mount further contribute to outstanding reliability in challenging outdoor conditions. Importantly, all of this has been accomplished in a body that is about the same size as the Alpha 7R III.
14 Not guaranteed to be 100% dust and moisture proof.
Designed and built for durability
Body durability has been enhanced by the use of a lightweight, high-rigidity magnesium alloy for the top cover, front cover, internal frame, and rear cover. Attachment points and rigidity at the lens mount are ample too, providing the strength needed for heavy lenses. In addition, to minimize stress when shooting for long periods of time and/or with long telephoto lenses, the grip area has been redesigned for greater comfort and surer hold. Ample room is provided for the little finger, and overhang in the middle finger area has been increased.
Dual UHS-II slots
The Alpha 7R IV has two media slots that are both compatible with UHS-I and UHS-II SD cards for higher overall capacity and faster read/write speeds. Data can be simultaneously recorded to both cards for backup, RAW/JPEG and stills/movies can be recorded to different cards, or recording can be automatically switched to the second card when the first becomes full.
Record reality in spectacular 4K8
In addition to its impressive still image capabilities, the new Alpha 7R IV performs exceptionally well as a serious filmmaking tool, offering 4K (3840x2160 pixels) video8 recording across the full width of the image sensor, and full pixel readout without pixel binning in Super 35mm mode9. This ensures high quality 4K footage with exceptional detail and depth. S-Log 2 and S-Log 3 are also available to maximize color grading flexibility, with S-Log 3 offering a total of 14-stops of dynamic range. HLG (Hybrid Log-Gamma) is available on the Alpha 7R IV as well to support an Instant HDR workflow.
8 A Class 10 or higher SDHC/SDXC card is required for XAVC S format movie recording. UHS speed class 3 or higher is required for 100 Mbps recording.
Touch Tracking for movies
Touch Tracking is beneficial for movie recording. Touch the subject to be tracked on the monitor, and the Real-time Tracking function will then process color, pattern (brightness), distance (depth), and face information to precisely and smoothly track the selected subject at the specified sensitivity and speed. It is also possible to half-press the shutter button or press the AF ON button while shooting to achieve fast focus (AF-S). This can be an advantage for weddings or documentaries, where there is only one chance to capture a scene. In such cases the focus area selected in advance is applied.