Specification Sheet
Real-time Tracking
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is a state-of-the-art feature that employs articial 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 specied 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.
Real-time Eye AF
Real-time Eye AF employs articial 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 le eye
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.
Real-time Eye AF for animals
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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.
Real-time Eye AF for movies
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The Alpha 7R IV debuts Real-time Eye AF for movie shooting
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, a rst in any of Sony’s cameras.
When activated, human eyes are automatically identied and precisely tracked with high
precision and reliability, allowing the shooter to focus on the content itself as opposed to what
is in focus or not. The same Touch Tracking functionality that is provided for stills is also available
for movie shooting, easily initiating Real-time Eye AF tracking on a specied eye. Right/le eye
selection is available for movies too.
Reliable low-vibration shutter
The shutter unit assembly has been carefully re-designed to reduce even the slightest movement
that may cause blur, which is critical with high resolution sensors. Shutter vibration that can
cause blur is reduced to a minimum, even when shooting continuous bursts at up to 10 frames
per second, thanks to a new shutter unit with a fast-response coreless motor. The system also
includes a brake that subdues mechanical front and rear curtain shutter vibration, and dampers
that absorb mechanical shock. Low shutter vibration is critical to achieving full quality from the
camera’s high-resolution image sensor. The shutter is also quiet, and has been tested for durability
in excess of 500,000 shutter cycles.
Silent shooting
In addition to the mechanical shutter, the Alpha 7R IV has an electronic shutter
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that operates
without moving parts for silent, vibration-free shooting. This also makes it easier to elicit maximum
performance from the camera’s high-resolution sensor.
5-axis image stabilization
A precision stabilization unit and gyro sensors work with rened image stabilization algorithms
to achieve up to a 5.5-step
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shutter speed advantage that also supports the high-resolution
capabilities of the 61-megapixel sensor. Camera shake is eectively compensated on 5 axes:
pitch and yaw, X and Y shi and roll. The live view image is also stabilized while shooting stills,
making it easier to frame and focus when using a telephoto or macro lens. In-body image
stabilization means that eective stabilization can be achieved with a wide range of lenses.
5-axis image stabilization is eective for movies as well as stills.
5.76 million-dot
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UXGA OLED Tru-Finder