SONY
Sony has announced the Alpha 7R IV full-frame camera with a new AI focusing system. Called "Real-time Recognition", this trainable system can detect not only people, but also birds, animals, planes, trains, cars and insects.
This system is at the heart of the Alpha 7R V, and is expected to roll out to other models in the future, as Sony says the new autofocus technology isn't just for the 7R IV.
The camera features the same 61MP back-illuminated Exmor R CMOS sensor as the A7R IV, but uses a new Bionz XR processor that can reproduce more detail and color from the same sensor. It's aided by a new autoexposure system that can better detect skin tones in a variety of challenging lighting conditions 20% more reliably than previous models.
The new 8-stop compensation is achieved through a "completely upgraded" 5-axis sensor image stabilization system and works in conjunction with the built-in gyroscope to improve communication between the lens and camera.
The new processor also allows the camera to shoot from ISO 100 to ISO 32,000, expandable to ISO 102,400 for stills. In addition, the Alpha 7R V now has a dynamic range of 15 points.
The camera also has two CFexpress Type-A slots, Sony's latest 98.44 million-dot electronic viewfinder, and 802.11ac Wi-Fi and Bluetooth. The USB-C port supports fast networking and PD charging, as well as continuous shooting when the camera is connected to a power source.
Sony claims that the case is dust and moisture resistant, which ensures high reliability in any working environment. A new integrated AI processor, along with the A7R V Dual Bionz XR processors found in the latest Alpha cameras and an AF system with 693 points and 79% sensor coverage, powers this new AF technology.
The AI tracking system is designed to detect human postures and recognize the movements people make when evaluating objects. It can detect not only eyes, head and body parts, but also nose, neck, shoulders, elbows, wrists, hips, knees and ankles.
By training the system to recognize poses, Sony claims the camera can better determine which objects are in the frame and therefore track objects more reliably when their body parts are covered. The new AI-based AF system improves real-time eye AF performance by 60% and increases animal detection by 40%.
For bird and animal autofocus, the Alpha 7R V can track dogs, cats and other pets and small animals, adding that it can accurately detect birds' eyes and now recognizes birds' heads and bodies in addition to eyes. Insect heads or bodies can now also be detected, and for train and aircraft detection, the front surface of the vehicle is detected.
The AI-based system is configurable and users can adjust the degree of recognition assigned to the selected subject and individual body parts functions to give priority when photographing people, animals and birds.
While Movie AF does not support full real-time recognition AF, it now supports real-time tracking and wide AF for video creation.
The Sony a7R V has a new 3.2-inch 4-axis LCD screen that can be tilted and turned.
The Alpha 7R V has significant improvements over the Alpha 7R IV in video performance. Now it can record up to 8K 24/25p (about 30 minutes before overheating) and 4K 50/60p video recording. Super-35 movie recording can record in 4K 30p/24p/25p, and 4K recording uses 6.2k oversampling for Super-35 video footage. Video can be recorded in 10-bit 4:2:2 and All-intra (XAVC SI) and HEVC (XAVC HS) codecs. Sony also says it has improved video stabilization when used in conjunction with OSS lenses.
A dedicated Photo/Cinema/S&Q switch on top of the camera switches modes and settings are saved individually for video and still photography.
The new case is designed to "dissipate heat throughout the camera" without a fan, making the camera capable of recording 8K for up to 30 minutes.
Pixel-shift shooting on the Alpha 7R V takes up to 16 consecutive shots with a slight sensor shift, resulting in a file with an effective resolution of over 200 MP.
The Sony Alpha 7 V has touch controls and a new "Main Menu" for video recording.
The new anti-dust system can shake the shutter more than 70,000 times per second, and the shutter can be set to close when the power is turned off. The side of the Alpha 7R V has a full-size HDMI port, a PC sync port, a microphone port, a headphone port, a USB Type-C port, and a USB Micro port.
The Sony Alpha 7R V camera is priced at $3,900 and will be available for purchase in mid-December.
mundophone
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