Sony Alpha a7R IV(M4) Mirrorless Digital Camera

Imaging

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 Frames (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/24.00p/25p/29.97p/50p/59.94p/100p/119.88p [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
Size	3"
Resolution	1,440,000 Dot
Display Type	Tilting Touchscreen LCD

Flash

Built-In Flash	No
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	Dual Slot: SD/SDHC/SDXC (UHS-II)
Connectivity	3.5mm Headphone, 3.5mm Microphone, HDMI D (Micro), USB Type-C (USB 3.0)
Wireless	Wi-Fi Bluetooth
GPS	No

Environmental

Operating Temperature

32 to 104°F / 0 to 40°C

Physical

Battery	1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)
Dimensions (W x H x D)	5.07 x 3.8 x 3.05" / 128.9 x 96.4 x 77.5 mm
Weight	1.46 lb / 665 g

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.

Dedicated Accessories from Sony

Complementing the camera body is a trio of accessories to increase battery life and enhance audio recording capabilities when shooting video. The VG-C4EM Vertical Grip is the dedicated battery grip, which accepts up to two more NP-FZ100 batteries for extended shooting times. Its ergonomic design also enhances handling when shooting in the vertical orientation.

For improved audio recording, and making use of the a7R IV's updated Multi Interface Shoe and digital audio interface, there is the ECM-B1M Shotgun Microphone, which delivers a digital audio stream directly to the camera for cleaner quality with low noise. For even more advanced audio control, there is also the XLR-K3M XLR Adapter Kit, which is a dual-channel digital XLR audio adapter for connecting external microphones to the camera while still benefitting from the digital audio interface.

61MP Exmor R BSI CMOS Sensor and BIONZ X Image Processor

Featuring a back-illuminated design, the full-frame 61MP Exmor R CMOS sensor works with the BIONZ X image processor to offer impressively high-resolution stills and video while minimizing noise, improving speed, and achieving a wide 15-stop dynamic range. This sensor structure works with gapless on-chip lens design and an anti-reflection coating, as well as eliminating the optical low-pass filter, to improve light collection and enhance detail. Also, the copper wiring layer dramatically improves data transmission speed for creating 14-bit, high-resolution 61MP stills with a native sensitivity range from ISO 100-32000, which can be further expanded to ISO 50-102400. Also, it enables internal UHD 4K video recording with a wide 14-stop dynamic range using either the full width of the full-frame sensor or an APS-C-sized area. The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with the ability to capture this impressive 15-stop dynamic range with smooth tonal rendering.

The sensor and processor combination also avails fast continuous shooting at up to 10 fps at full resolution, for up to 68 consecutive frames, with full-time AF/AE.