Sony Alpha A7R IV Summary

61 Megapixels61 MegapixelsElectronic View FinderElectronic View FinderHigh ISO: ISO 6400 or more is available at full-resolution.High ISO: ISO 6400 or more is available at full-resolution.Stabilization: Compensates for tiny involuntary movements of the camera.Stabilization: Compensates for tiny involuntary movements of the camera.Continuous DriveContinuous DriveUltra HD (4K) video: 3840x2160 resolution or more.Ultra HD (4K) video: 3840x2160 resolution or more.Manual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Manual Controls: Both fully-manual (M) and semi-automatic modes (T and V).Custom White-Balance: Specifies exactly what should be white to the camera.Custom White-Balance: Specifies exactly what should be white to the camera.Action Photography: Shutter speeds of 1/1500 or more.Action Photography: Shutter speeds of 1/1500 or more.Night Photography: Reaches shutter-speeds longer than 4 seconds.Night Photography: Reaches shutter-speeds longer than 4 seconds.Hotshoe: Allows external flash units to be attached.Hotshoe: Allows external flash units to be attached.Spot MeteringSpot MeteringDepth-Of-Field Preview: Improve perception of DOF before shooting.Depth-Of-Field Preview: Improve perception of DOF before shooting.Live-View: Lets DSLR cameras use the rear LCD as an EVF.Live-View: Lets DSLR cameras use the rear LCD as an EVF.Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Accepts Secure Digital Extended Capacity (SDXC), SDHC and SD memory.Accepts Secure Digital Extended Capacity (SDXC), SDHC and SD memory.Neocamera detailed reviewNeocamera detailed review

Sony Alpha A7R IV Assessment

The Sony A7R IV is the latest high-resolution flagship mirrorless camera from its manufacturer. Based on the same Full-Frame E-mount platform as the A7R III, this new model offers a huge jump in resolution to 61 MP from 42, while maintaining the same 10 FPS maximum continuous drive and most features.

With a state-of-the-art 5-axis image-stabilization system, the A7R IV can capture very detailed images using low shutter-speeds that are needed to extract the best image quality from its 61 MP sensor. At low-to-medium ISO, image-quality is stunning with low image-noise and a very large dynamic-range. High ISO levels remain usable for reduced print sizes which are still quite large.

Speed of the A7R IV is somewhat mixed. Both the shutter-lag and blackout are very quick, while the AF system which combines 567-Point Phase-Detection and 425-Area Contrast-Detection can focus extremely quickly but also slows down at small apertures. Many controls act immediately but numerous features react slower than usual. This is not a camera designed for speed, mostly due to the high throughput required by its ultra-high resolution.

The A7R IV has probably the best EVF experience on the market. Its ultra-sharp 5.8 MP 0.5" EVF with large 0.78X magnification and 100% coverage shows an Exposure-Priority preview that is a pleasure to use. It can show critical focus with a number of assist options and is equipped with an essential Eye-Start Sensor.

There are triple control-dials, plenty of customizable buttons and a tilting EVF on the sturdy weatherproof body of this mirrorless. The camera is relatively compact, close in size to an APS-C DSLR which means it packs a lot of resolution and image-quality for its size. Where there is room for improvement is in the user-interface which is both slow and overly complicated. Battery-life is also rather limited yet this is easy to overcome.

Overall, the Sony Alpha A7R is a digital camera that pushes the boundaries of what was previously possible. Its resolution above all else approach is certain to appeal photographers that are looking to make huge prints.

PROS CONS
Ultra high-resolution for a Full-Frame sensor Image noise starting a medium-level ISO
Excellent sharpness Stopped-down AF
Highly effective image-stabilization Common overexposure of backlit scenes
Wide dynamic-range at low-to-medium ISO Slow user interface locks white writing
Conservative metering system Triple control-dials are underused
Highly accurate AF Modal Custom buttons
Mostly fast autofocus Very complex menus
Excelent Realtime Eye-Tracking AF Overwhelming Picture Profile controls
Nicely saturated colors Video mode restricts AF
Above average AWB Video recording lag
Spectacular Exposure-Priority EVF ½ EV steps not fully implemented
Nice physical layout Poor battery-life
Solid build quality
Excellent +Excellent + Excellent +

Neocamera detailed reviewNeocamera detailed review Read the Sony A7R IV review.

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Neocamera
Sony Alpha A7R IV
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By Neocamera on 2019-11-25

Sony A7R IV Highlights


Mirrorless digital camera

Sensor-Size: 36 x 24mm

Full-Frame Sensor

Actual size when viewed at 100 DPI

61 Megapixels MirrorlessISO 50-102400
Sony E Mount
1X FLM
Shutter 1/8000-30s
5-Axis Built-in Stabilization, 5.5-Stop ImprovementFull manual controls, including Manual Focus
0.50" Built-in EVF 5.8 Megapixels (0.78X)Custom white-balance with 2 axis fine-tuning
Automatic Eye-Start sensorSpot-Metering
WeatherproofHot-Shoe & Sync-Port
Built-in Dust ReductionStereo audio input
10 FPS Drive, 68 ImagesLithium-Ion Battery
3840x2160 @ 30 FPS Video RecordingSecure Digital Extended Capacity x 2
3" LCD 1.4 Megapixels
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