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