Sony Alpha a7R IV Mirrorless Digital Camera (Body Only) Moving to an even higher resolution realm, the Sony Alpha a7R IV continues the noteworthy series of highly capable full-frame cameras, characterized by impressive stills and video performance and versatility. This fourth edition of the a7R sees the inclusion of an updated 61MP Exmor R BSI CMOS sensor and enhanced BIONZ X image processor, which afford impressive imaging results with marked smoothness, a 15-stop dynamic range, and, of course, speed. Up to 10 fps shooting is possible along with the ability to record UHD 4K30 video, both with support for Real-time Eye AF and Tracking AF technologies. The revised sensor design uses a Fast Hybrid AF System, with 567 phase-detection autofocus points, for notably fast and accurate focusing performance. Despite being such a high-resolution sensor, it is also distinguished by its flexible native sensitivity range from ISO 100-32000 for working in a variety of lighting conditions. Additionally, benefitting both stills and video operation, the a7R IV retains the 5-axis SteadyShot INSIDE sensor-shift image stabilization, which is effective to minimize the appearance of camera shake by up to 5.5 stops.
Balancing the imaging merits, the a7R IV also sees an updated physical design with more robust weather sealing to suit working in especially harsh weather conditions. In terms of usability, the OLED electronic viewfinder has been boosted to an impressive 5.76m-dot resolution for clear viewing and the 3.0" rear tilting touchscreen LCD has a high 1.44m-dot resolution for crisp playback, live view shooting, and menu navigation. Dual SD card slots are both UHS-II-rated for faster performance and the inclusion of a USB Type-C port permits tethering and quick in-camera battery charging. Additionally, built-in Bluetooth and both 2.4 and 5 GHz Wi-Fi bands afford wireless transferring and remote camera control from linked mobile devices.
Lens Mount Sony E
Camera Format Full-Frame (1x Crop Factor)
Pixels Actual: 62.5 Megapixel
Effective: 61 Megapixel
Maximum Resolution 9504 x 6336
Aspect Ratio 1:1, 3:2, 4:3, 16:9
Sensor Type CMOS
Sensor Size 35.7 x 23.8 mm
Image File Format JPEG, RAW
Bit Depth 14-Bit
Image Stabilization Sensor-Shift, 5-Axis
Exposure Control
ISO Sensitivity Auto, 100 to 32000 (Extended: 50 to 102400)
Shutter Speed Mechanical Shutter
1/8000 to 30 Second
Bulb Mode
1/8000 to 1/4 Second in Movie Mode
Metering Method Center-Weighted Average, Highlight Weighted, Multiple, Spot
Exposure Modes Aperture Priority, Manual, Program, Shutter Priority
Exposure Compensation -5 to +5 EV (1/3, 1/2 EV Steps)
Metering Range -3 to 20 EV
White Balance Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Continuous Shooting Up to 10 fps at 61 MP for up to 68 Exposures (JPEG)
Interval Recording Yes
Self-Timer 2/5/10-Second Delay
Video
Recording Modes XAVC S
UHD 4K (3840 x 2160) at 23.976p/25p/29.97p [60 to 100 Mb/s]
Full HD (1920 x 1080) at 23.976p/24p/25p/29.97p/50p/59.94p/100p/120p [16 to 100 Mb/s]
AVCHD
Full HD (1920 x 1080) at 50i/59.94i [17 to 24 Mb/s]
External Recording Modes 4:2:2 8-Bit
DCI 4K (4096 x 2160) at 23.976p/25p/29.97p
Full HD (1920 x 1080) at 23.976p/50i/50p/59.94i/59.94p
Video Encoding NTSC/PAL
ISO Sensitivity Auto: 100 to 12800
Manual: 100 to 32000
Audio Recording Built-In Microphone (Stereo)
External Microphone Input (Stereo)
Focus
Focus Type Auto and Manual Focus
Focus Mode Automatic (A), Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S)
Autofocus Points Phase Detection: 567
Contrast Detection: 425
Autofocus Sensitivity -3 to +20 EV
Viewfinder and Monitor
Viewfinder Type Electronic (OLED)
Viewfinder Size 0.5"
Viewfinder Resolution 5,760,000 Dot
Viewfinder Eye Point 23 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.78x
Diopter Adjustment -4 to +3
Monitor Size 3"
Monitor Resolution 1,440,000 Dot
Monitor Type Tilting Touchscreen LCD
Flash
Built-In Flash None
Flash Modes Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless
Maximum Sync Speed 1/250 Second
Flash Compensation -3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash System S-TTL
External Flash Connection Hot Shoe, PC Terminal
Interface
Memory Card Slot 2 x SD/SDHC/SDXC
Connectivity 3.5mm Headphone, 3.5mm Microphone, HDMI D (Micro), USB 2.0 Micro-B, USB 3.0, USB Type-C
Wireless Wi-Fi
Bluetooth
GPS None
