The Sony a7R IV is a high-resolution full-frame mirrorless camera that is the company’s fourth generation offering. It is designed on a BSI-CMOS sensor that is capable of producing photos with a resolution of 60.2 megapixels. It promises to have a build quality that is more solid than that of prior generations, enhanced controls, the most recent autofocus implementation the firm has developed, and more.
In spite of its high resolution, it is capable of shooting at up to 10 frames per second with complete autofocus. Additionally, it can record 4K video either from the full width of its sensor or from an APS-C or Super 35 crop. In addition to this, it now has a 16-shot high-resolution mode that, when utilized properly, can produce photographs with a resolution of 240 megapixels.
Sony Alpha a7R IV Price in USA
After a period of fast development and progress, the Mark IV’s enhancements over the Mark III aren’t as attention-grabbing as they were when the Mark III was released. The jump from 42 to 60 megapixels plays just as important a role as the simplification and enhancement of the autofocus mechanism. It is now better capable of focusing on moving subjects.
The most significant improvement brought about by the Mark IV is one that cannot be fully appreciated unless the camera itself is used. The addition of what Sony refers to as “Real-time Tracking AF” makes a significant improvement in both the performance of the camera and the ease with which it may be used.
It is a system that has been “trained” to detect persons, faces, and eyes, which enables it to recognize and track subjects reliably as they move around the frame. And when it comes to human subjects, it will realize that your subject hasn’t vanished simply because they look away for a split second, quickly returning to face or eye-detection focus when they face you again. This is because it has the ability to distinguish human faces.
The final result is a dependable and user-friendly system that requires little effort when positioning or repositioning your autofocus point and eliminates the need to navigate the menus in order to make adjustments to the settings.
The autofocus tracking feature of the Sony a7R III was pretty good at tracking subjects, but it wasn’t as good at dealing with people. It also had a tendency to adjust its focus to focus on the entirety of whatever you asked it to track, rather than the particular part of the subject that you wanted to zero in on. Once you’ve used the Mark IV, it’s quite tough to switch back to using the Mark III for your photography.
A significant portion of this autofocus capabilities is also available in the video mode, which is a significant advance over Sony’s older “Center Lock-On AF” technology, which used to be incompatible with the settings for the stills mode.
For a number of years, Sony cameras have provided users with the option to shoot in either 3:2 or 16:9 aspect ratio. In addition, the a7R IV allows you the option to shoot 4:3 crops from the sensor as well as 1:1 crops, should you so want. The Raw files have information that indicates the crop you picked, but they also contain the output for the full frame in case you want it.
The a7R IV is capable of shooting at a rate of 10 frames per second, a speed that, until quite recently, was only achievable by low-resolution sports cameras designed specifically for the purpose. This rate can only be achieved if you choose to shoot in JPEG-only mode or Sony’s damaging “Compressed” Raw mode. When shooting in burst mode, this also causes the camera to switch to 12-bit readout mode, which increases the buffer depth but decreases the degree to which Raw files can be manipulated.
If the camera is instructed to shoot in the “Uncompressed Raw” mode, it will produce complete (large) 14-bit Raw files; however, the frame rate will reduce to around 6 frames per second.
The a7R III included a four-shot mode that shifted the sensor between each photo. This enabled the camera to obtain red, green, and blue data from every part of the image. Since there is no longer a requirement for demosaicing, this makes it possible to create photos with a better color resolution. Additionally, the enhanced noise and dynamic range benefits that come from capturing the subject many times are also made possible.
In contrast to the similar four-shot system found in Ricoh’s Pentax K-1/II, the images captured by the camera are not processed together in-camera, and there is no mechanism to account for any movement that may occur in the time between frames. In order to merge the photos, Sony users will need to make use of either Sony’s Image Edge software or solutions provided by third parties such as ‘SonyPixelShift2DNG.’
The Mark IV now has a mode that is more similar to the one that Olympus developed; initially, it takes four pictures that are centered around one position; then, it moves the sensor to the side by half a pixel and takes another four pictures; finally, it moves it again to the side by another half pixel and takes 16 pictures in total. These 16 photographs have the potential to be converted into 240-megapixel photographs.
It is important to keep in mind that this mode employs the electronic shutter, which has a flash sync speed of 1/8 of a second. Because of this, the types of lighting setups that it may be utilized with are restricted. There is also no motion correction, so you run the risk of getting artifacts if your image has even the slightest bit of movement.
Sony Alpha a7R IV Specifications
|MSRP||$3500 (body only)|
|Body type||SLR-style mirrorless|
|Body material||Magnesium alloy|
|Max resolution||9504 x 6336|
|Image ratio w:h||1:1, 4:3, 3:2, 16:9|
|Effective pixels||61 megapixels|
|Sensor photo detectors||63 megapixels|
|Sensor size||Full frame (35.7 x 23.8 mm)|
|Color space||sRGB, Adobe RGB|
|Color filter array||Primary color filter|
|ISO||Auto, ISO 100-32000 (expands to 50-102800)|
|Boosted ISO (minimum)||50|
|Boosted ISO (maximum)||102800|
|White balance presets||9|
|Custom white balance||Yes|
|CIPA image stabilization rating||5.5 stop(s)|
|JPEG quality levels||Extra fine, fine, standard)|
|File format||JPEG (Exif v2.31)Raw (Sony ARW v2.3)|
|Optics & Focus|
|Autofocus||Contrast Detect (sensor)Phase DetectMulti-areaCenterSelective single-pointTrackingSingleContinuousTouchFace DetectionLive View|
|Autofocus assist lamp||Yes|
|Digital zoom||Yes (2x – 4x)|
|Number of focus points||567|
|Lens mount||Sony E|
|Focal length multiplier||1×|
|Screen / viewfinder|
|Screen type||TFT LCD|
|Minimum shutter speed||30 sec|
|Maximum shutter speed||1/8000 sec|
|Exposure modes||ProgramAperture priorityShutter priorityManual|
|External flash||Yes (via hot shoe or flash sync port)|
|Flash modes||Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync.|
|Flash X sync speed||1/250 sec|
|Drive modes||SingleContinuous (Hi+/Hi/Mid/Lo)Self-timerBracketing (Ex0osure, WB, DRO)|
|Continuous drive||10.0 fps|
|Exposure compensation||±5 (at 1/3 EV, 1/2 EV steps)|
|AE Bracketing||±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)|
|Format||MPEG-4, XAVC S, H.264|
|Modes||3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 25p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60i / 24 Mbps, AVCHD, MTS, H.264, Dolby Digital1920 x 1080 @ 30p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM|
|Storage types||Dual SD/SDHC/SDXC (UHS-II compatible)|
|USB||USB 3.2 Gen 1 (5 GBit/sec)|
|Wireless notes||802.11ac + Bluetooth 4.1 + NFC|
|Remote control||Yes (via smartphone)|
|Battery description||NP-FZ100 lithium-ion battery & charger|
|Battery Life (CIPA)||670|
|Weight (inc. batteries)||665 g (1.47 lb / 23.46 oz)|
|Dimensions||129 x 96 x 78 mm (5.08 x 3.78 x 3.07″)|
We’ve tried a lot of different cameras, and the Sony a7R IV is one of the most capable. It makes a persuasive argument that the days of having to choose between cameras that are focused on speed or cameras that are focused on resolution are coming to an end. For those users who need this resolution on a regular basis and want to be able to photograph fast-moving subjects when necessary, the Sony a7R IV is the best option that is currently available on the market. However, it wouldn’t be our top choice for sports and action purists because all of those megapixels result in many megabytes of storage. But for those users, the Sony a7R IV is the best option on the market right now.
- Big, sharp EVF.
- Autofocus that follows moving targets in real time
- 10 frames per second capture in raw format.
- Picture stabilization over five axes
- Dual UHS-II slots.
- 60.2MP full-frame imagery.
- LCD display that can be tilted.
- Big file sizes.
- For better video quality, choose a camera with less pixels.
- The phase detection does not go all the way to the frame's boundary.