Sony Alpha A7R review

Superb image quality from this revolutionary CSC

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We shoot a specially designed chart in carefully controlled conditions and the resulting images are analysed using DXO Analyzer software to generate the data to produce the graphs below.

Our normal procedure when testing new cameras is to process the raw files using the supplied software and convert them into TIFFs before analysing them using DXO's Analytics software. All dynamic range optimisation and noise reduction systems are set to their minimum values.

A high signal to noise ratio (SNR) indicates a cleaner and better quality image.

For more more details on how to interpret our test data, check out our full explanation of our noise and dynamic range tests.

JPEG signal to noise ratio

JPEG signal to noise

With a pixel count this high, it's not too much of a surprise to see the camera put in what appears to be a "poor" signal to noise ratio performance. It seems that the Nikon D800E, which also features a high resolution and no anti-aliasing filter puts in a more balanced performance when it comes to JPEG files, with the 7R perhaps doing a better job of maintaining detail at higher sensitivities, even if it means increasing noise levels.

Raw signal to noise ratio

Raw signal to noise

This graph shows a better performance for the raw files (after conversion to TIFF), which is indicative of the greater level of data in these files and the higher level of control over them. Here we can see it compares pretty closely with the Nikon Df, while the D800 again puts in a better overall performance. It is the Canon 5D Mark III which is the best performer here though.

JPEG dynamic range

JPEG dynamic range

For dynamic range, the Sony puts in a very good performance at the lower end of the sensitivity scale, beating both the Canon 5D Mark III and the Nikon Df. The Nikon D800 beats it all sensitivities. When the range hits the higher end, ISO 1600 and above, the 7R suffers a significant drop off when compared to the other cameras on test.

Raw dynamic range

Raw dynamic range

With raw format files (after conversion to TIFF), the A7R puts in a more consistent performance, beating the other cameras significantly at the lowest end of the sensitivity scale (50-400). From ISO 800 and on, it puts in a very close performance with both the Canon 5D Mark III and the Nikon D800E, and outperforms the Nikon Df.

Tech Specs

Product TypeMirrorless Camera Body Only
Battery Size SupportedProprietary Battery Size
Maximum Video Resolution1920 x 1080
Wireless LANYes
Effective Camera Resolution36.4 Megapixel
Product Familyalpha
HD Movie ModeYes
Memory Card SupportedMemory Stick PRO Duo, Memory Stick PRO-HG Duo, Memory Stick XG-HG Duo, Secure Digital (SD) Card, Secure Digital Extended Capacity (SDXC), Secure Digital High Capacity (SDHC) Card, Memory Stick Duo
Image StabilizationNo
Digital Zoom4x
Brand NameSony
DurabilityDust Resistant, Moisture Resistant
FeaturesContinuous Shooting Mode, Live View, Face Detection, Orientation Sensor, External Flash Shoe, Near Field Communication (NFC), Noise Reduction
Screen Size7.6 cm (3")
Video FormatsAVCHD, MPEG-4 AVC, H.264, MP4
Viewfinder TypeElectronic
Weight (Approximate)407 g
Image Sensor Size35.90 mm x 24 mm
Maximum Image Resolution7360 x 4912
Display Screen TypeLCD
Height94.4 mm
Width126.9 mm
Depth48.2 mm
Image FormatsJPEG, RAW
External FlashOptional
Focus ModesAuto, Manual
ManufacturerSony Corporation
Product Model7R
Product Nameα7R Full-Frame ILC Body Only (No Lens Included)
Product Linealpha
Exposure Control
  • Program AE
  • Aperture Priority AE
  • Shutter Priority AE
  • Manual
Aspect Ratio16:9
Manufacturer Part NumberILCE7RB.CE
Manufacturer Website Address
Marketing InformationFull-frame power. Small camera body.

With the world's smallest and lightest 35mm full-frame interchangeable-lens camera*, anything's possible. Switch lenses. Shoot absolute resolution with 36.4MP and no optical low pass filter. Realise your full-frame vision anywhere, anytime, with remarkably realistic detail.

Package Contents
  • α7R Full-Frame ILC Body Only (No Lens Included)
  • Battery
Limited Warranty1 Year