Sony Alpha a7R IIIA Mirrorless Digital Camera (Body Only)

Model: ILCE7RM3A/B

Sony Warranty - USA Version
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MSRP: $2,199.99 ?


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Video Encoding NTSC/PAL
Audio Recording Built-In Microphone (Stereo)
External Microphone Input
Audio File Format AC3, Dolby Digital 2ch, Linear PCM (Stereo)
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/25p/29.97p/50p/59.94p/100p/119.88p [100 Mb/s]
HD (1280 x 720) at 100p/119.88p [50 Mb/s]
Full HD (1920 x 1080) at 50p/59.94p [28 Mb/s]
Full HD (1920 x 1080) at 23.976p/25p/50i/59.94i [17 to 24 Mb/s]
Full HD (1920 x 1080) at 50p/59.94p [28 Mb/s]
Full HD (1920 x 1080) at 25p/29.97p [16 Mb/s]
HD (1280 x 720) at 25p/29.97p [6 Mb/s]
External Recording Modes 4:2:2 8-Bit
UHD 4K (3840 x 2160) at 24.00p/25p/29.97p
Full HD (1920 x 1080) at 24.00p/50i/50p/59.94i/59.94p
Recording Limit Up to 29 Minutes


Weight 1.45 lb / 657 g
Dimensions (W x H x D) 5 x 3.76 x 2.9" / 126.9 x 95.6 x 73.7 mm
Battery 1 x NP-FZ100 Rechargeable Lithium-Ion, 7.2 VDC, 2280 mAh (Approx. 530 Shots)

Packaging Info

Box Dimensions (LxWxH) 9.7 x 6.1 x 5.7"
Package Weight 3 lb


Connectivity 3.5mm Headphone, 3.5mm Microphone, HDMI D (Micro), USB Type-C (USB 3.0), USB Micro-B (USB 2.0)
Media/Memory Card Slot Slot 1: SD/SDHC/SDXC (UHS-II)
Slot 2: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
Wireless Wi-Fi


Lens Mount Sony E
Camera Format Full-Frame (1x Crop Factor)
Sensor Resolution Actual: 43.6 Megapixel
Effective: 42.4 Megapixel (7952 x 5304)
Aspect Ratio 3:2, 16:9
Sensor Type CMOS
Sensor Size 35.9 x 24 mm
Image File Format JPEG, Raw
Bit Depth 14-Bit
Image Stabilization Sensor-Shift, 5-Axis


Focus Mode Automatic (A), Continuous-Servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-Servo AF (S)
Focus Type Auto and Manual Focus
Autofocus Points Phase Detection: 399
Contrast Detection: 425
Autofocus Sensitivity -2 to +20 EV
Viewfinder Type Electronic
Viewfinder Size 0.5"
Viewfinder Resolution 3,686,400 Dot
Viewfinder Eye Point 23 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.78x
Diopter Adjustment -4 to +3
Size 3.0"
Resolution 2,359,296 Dot
Display Type Tilting Touchscreen LCD


Flash Modes Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync, Wireless
Built-In Flash No
Maximum Sync Speed 1/250 Second
Flash Compensation -3 to +3 EV (1/3, 1/2 EV Steps)
Dedicated Flash System TTL
External Flash Connection Hot Shoe, PC Terminal

Exposure Control

ISO Sensitivity Auto, 100 to 32000 (Extended: 50 to 102400)
Continuous Shooting Up to 10 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG)
Up to 8 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG)
Up to 6 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG)
Up to 3 fps at 42.4 MP for up to 76 Frames (Raw) / 76 Frames (JPEG)
White Balance Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Metering Range -3 to 20 EV
Self-Timer 2/5/10-Second Delay
Exposure Compensation -5 to +5 EV (1/3, 1/2 EV Steps)
Exposure Modes Aperture Priority, Auto, Manual, Program, Shutter Priority
Metering Method Center-Weighted Average, Highlight Weighted, Multi-Zone, Spot
Shutter Speed 1/8000 to 30 Seconds
1/8000 to 1/4 Second in Movie Mode
Bulb Mode


Operating Temperature 32 to 104°F / 0 to 40°C
User Reviews
30 October 2018

The Quality of the photos are good. Too many functions and some whatever confusing to use

29 March 2018

This is the most awesome camera kit I've ever owned. I have used both full frame and APC lenses with great success. This is definitely a major step up from my Sony a6000. Looking forward to using this camera for portrait and landscape purposes.#sweepstakes

28 May 2024

I bought this camera a month ago and I need a few days to learn to set up it is amazing camera, excellent images a lot of possibilities. I am extremely impressed, happy, and I recommend it.

23 April 2024

Purchased Alpha A73 as a replacement for my Alpha A7 (10) years old, fabulous little work horse.

15 March 2024

It would have been 5 stars but for the lack of a fully articulating screen, which is a real shame as the camera is absolutely mind-blowing in every other detail. The image quality is tricky outstanding.

12 January 2024

This is relatively new to me. I’ve been a canon dslr user for years but wanted to go mirror less and the canon alternative was out of reach budget wise. Taking a while to get used to the menus and the EV but performance wise I’m really pleased. Smaller form is good too.

5 January 2024

I originally owned an A7R III back in 2018 and loved it. However, I allowed my gear obsession to get the better of me, and I switched to a different, newer system.While the latest cameras are technically very impressive, the fact is, stills image quality hit a wall in 2017/18 and so if, like me,...

22 August 2023

Great piece of kit that totally improves on the A7RII that I have.

11 August 2023

I have recently purchased this camera with the Sony 20mm 1.8 and have had a couple of trips to The Peak District, England to put the camera and lens through its paces. Varied landscape work, lee filters and I cannot find the words to really describe my joy with the quality of build and the superb...

18 July 2023

Since getting this camera, I have found huge improvement to the quality of my photographs. So mush easier to resize and edit shots, allowing for high quality outcomes, due to the high number of Pixels. I can, when needed, zoom in and crop without getting pixelisation. Fabulous

Product Highlights
  • 42MP Full-Frame Exmor R BSI CMOS Sensor
  • BIONZ X Image Processor & Front-End LSI
  • 399-Point AF System & 10 fps Shooting
  • UHD 4K30p Video with HLG & S-Log3 Gammas
  • 3.69m-Dot Tru-Finder OLED EVF
  • 3.0" 2.36m-Dot Tilting Touchscreen LCD
  • 5-Axis SteadyShot INSIDE Stabilization
  • ISO 102400 & Pixel Shift Multi Shooting
  • Built-In Wi-Fi/Bluetooth, Dual SD Slots
  • USB 3.2 Gen 1 Type-C Port & PC Sync Port
In The Box
  • Sony Alpha a7R IIIA Mirrorless Digital Camera (Body Only)
  • Sony NP-FZ100 Rechargeable Lithium-Ion Battery (2280mAh)
  • Sony BC-QZ1 Battery Charger
  • Cable Protector
  • Shoulder Strap
  • Sony ALC-B1EM Body Cap for E-Mount Cameras
  • Accessory Shoe Cap
  • Eyepiece Cup
  • USB Type-C Cable
  • Limited 1-Year Warranty
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