Sony a7R IV Gets 99 Points Overall Score at DxOMark
DxoMark posted their Sony a7R IV sensor review and test results – Sony a7R IV’s 61.2MPMp full-frame CMOS sensor achieved an excellent overall DxOMark sensor score of 99 points (just 1 point behind the Nikon D850 & Sony a7R III), with a combination of 26 bits color depth, 14.8 EV dynamic range, and 3344 ISO low-light score.
Sony a7R IV Key Features:
- Back-illuminated 61MP full-frame Exmor R sensor
- High-speed BIONZ X image processor
- Up to 10 fps with AF/AE tracking
- High-resolution 4K HDR
- 3-inch LCD touch screen with 1.44 million dots
- 5.76-million dot UXGA OLED Tru-Finder EVF
- High-speed Wi-Fi / FTP transfer and wireless PC remote
- In-body 5-axis image stabilization
- AF-On button and multi-selector
- Robust, dust- and moisture-resistant magnesium alloy body
Image quality compared:
As the table shows below, the results put the new Sony A7R IV only a fraction behind the Panasonic Lumix DC-S1R and the Nikon D850, as well as the two cropped (~33 x 44mm) medium-format Pentax 645Z and the more recent Hasselblad X1D-50c.
Conclusion from DxOMark:
Despite the challenges posed by the increase in pixel count, Sony’s latest addition to the high-resolution A7R series, the A7R IV, continues to deliver excellent dynamic range, particularly at low ISOs, while also delivering very good color discrimination and control over noise. While the technological advances are impressive, it’s not quite enough to put the sensor’s performance ahead of rival, lower-pixel-count devices overall. However, the increase in pixel count to 61.2MP, making it the highest currently available in 35mm full-frame format, is certainly compelling. When you combine that with the upgraded AF and other refinements, such as its higher-res EVF, robust build, and improved ergonomics, the Sony A7R IV is one of the most—perhaps the most—capable and versatile high-res 35mm full-frame cameras available.
You can read the full review at DxOMark.