The Sony a7 IV is the company’s latest and greatest full-frame mirrorless camera model, and it is the fourth iteration of the core a7 model. Since the release of the a7 III in February 2018, Sony has made a number of advancements in terms of focusing and the design of the user interface, and this model is the most sophisticated one they have produced to far, bringing many of these advancements with it. When compared to the a7 III, the a7 IV has virtually every one of its features upgraded, from fundamentals like the quality of the sensor and viewfinder to greatly greater video capture choices.
Sony Alpha a7 IV Price in USA
A brand-new BSI-CMOS sensor with 33 megapixels serves as the beating heart of the Sony a7 IV. This signifies a departure from the 24MP chip that was utilized by the Sony a7 III as well as its direct competitors from Panasonic and Nikon. We do not anticipate significant improvements in image quality from the next generation of cameras because BSI sensors are already utilized to a large extent in today’s cameras. In terms of the image quality, the most likely thing that we can anticipate is a minor improvement in the level of detail, along with equivalent performance in low light.
The Sony a7 IV is still capable of shooting at a frame rate of 10 even though it has a greater resolution. If you wish to shoot in Raw, however, it can only do so in a format that is lossily compressed, and it drops down to 12-bit mode, which further reduces the dynamic range. If you choose to employ the lossless compression option, the burst rate on the a7 IV will drop to about 6 frames per second. This is useful for situations in which you want maximum processing flexibility. However, this is in the uncompressed Raw format, which again shoots at about 6 frames per second. Sony claims that the camera’s buffer depth allows for more than 800 Raw+JPEG photos (or more than 1000 JPEGs).
Based on our initial examination of the rolling shutter rates, it appears that this sensor is not very quick. The 14-bit readout of the whole sensor for still images takes around 1/15 of a second, or approximately 66 milliseconds. This is approximately seventeen times longer than the time it takes the super-fast a1 to read out its sensor. This indicates that using the silent shutter option with moving subjects is likely to result in substantial distortion.
It takes about 26.5 milliseconds to record a full-width 4K video, which is about the same as the other devices in its class. The camera probably uses a 12-bit readout for video mode, much like the vast majority of its competitors. However, the process of downsampling from 7K to 4K should minimize noise, which should prevent dynamic range from dipping to 12EV. The rolling shutter rate of 60p video is around 12.8 milliseconds, which is sufficiently slow to prevent the distortion of anything but the swiftest action.
In terms of autofocus, the improvements over the a7 III should be fairly significant. This is not so much because of the promise to focus in conditions that are one stop darker (–4EV with an F2 lens), but rather because that camera was one of the last Sonys that didn’t integrate Eye AF into its main AF system, and instead relied on a much more primitive AF tracking system. The new camera promises to focus in conditions that are one stop darker (–4EV with an F2 lens). The Sony a7 III was able to recognize human eyes, but it was unable to transition between monitoring a person’s eyes, face, and body in a reliable and smooth manner when the camera was set to concentrate on a person.
The a7 IV is capable of doing just this, and it also includes settings that can identify and track animals, such as birds, dogs, and cats, with increased precision. These animal detecting capabilities have now been included for the very first time into the video mode of the camera.
Additionally, even with things the camera hasn’t been trained to identify, the a7 IV employs pattern detection, subject color, and brightness to assist it stay focused on the topic you choose. This is true even when the camera is photographing something it hasn’t been learned to recognize.
Sony Alpha a7 IV Specifications
|MSRP||$2499, €2,800, £2,400 (body only)|
|Body type||SLR-style mirrorless|
|Body material||Magnesium alloy|
|Max resolution||7008 x 4672|
|Image ratio w:h||1:1, 4:3, 3:2, 16:9|
|Effective pixels||33 megapixels|
|Sensor photo detectors||34 megapixels|
|Sensor size||Full frame (35.6 x 23.8 mm)|
|Color space||sRGB, Adobe RGB, BT.2020|
|Color filter array||Primary color filter|
|ISO||Auto, 100-51200 (expands to 50-204800)|
|Boosted ISO (minimum)||50|
|Boosted ISO (maximum)||204800|
|White balance presets||7|
|Custom white balance||Yes|
|Image stabilization notes||5-axis|
|CIPA image stabilization rating||5.5 stop(s)|
|JPEG quality levels||Extra fine, fine, normal|
|File format||JPEG (Exif v2.32)HEIFRaw (ARW 4.0)|
|Optics & Focus|
|Autofocus||Contrast Detect (sensor)Phase DetectMulti-areaCenterSelective single-pointTrackingSingleContinuousTouchFace DetectionLive View|
|Autofocus assist lamp||Yes|
|Number of focus points||759|
|Lens mount||Sony E|
|Focal length multiplier||1×|
|Screen / viewfinder|
|Articulated LCD||Fully articulated|
|Screen type||TFT LCD|
|Minimum shutter speed||30 sec|
|Maximum shutter speed||1/8000 sec|
|Exposure modes||ProgramAperture priorityShutter priorityManual|
|External flash||Yes (Multi-interface shoe)|
|Flash X sync speed||1/250 sec|
|Drive modes||SingleContinuousSelf-timerBracketing (AE/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, XAVC HS, XAVC S-I, H.264, H.265|
|Modes||3840 x 2160 @ 60p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 30p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 25p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 60p / 600 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 500 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 300 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 25p / 250 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 240 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60p / 222 Mbps, XAVC S-I, MP4, H.264, Linear PCM1920 x 1080 @ 50p / 185 Mbps, XAVC S-I, MP4, H.264, Linear PCM1920 x 1080 @ 30p / 111 Mbps, XAVC S-I, MP4, H.264, Linear PCM1920 x 1080 @ 25p / 93 Mbps, XAVC S-I, MP4, H.264, Linear PCM1920 x 1080 @ 24p / 89 Mbps, XAVC S-I, MP4, H.264, Linear PCM1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM1920 x 1080 @ 50p / 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||One CFexpress Type A/UHS-II SD, One UHS-II SD|
|USB||USB 3.2 Gen 2 (10 GBit/sec)|
|USB charging||Yes (USB PD supported)|
|Wireless notes||802.11ac (dual band) + Bluetooth|
|Remote control||Yes (wireless or smartphone)|
|Battery description||NP-FZ100 lithium-ion battery charger|
|Battery Life (CIPA)||580|
|Weight (inc. batteries)||659 g (1.45 lb / 23.25 oz)|
|Dimensions||131 x 96 x 80 mm (5.16 x 3.78 x 3.15″)|
The Sony Alpha a7 IV is a camera that has a wide range of capabilities and can assist the photographer in practically any setting. Its video capabilities live up to the same quality, which makes it a very versatile imaging tool. [Case in point:] It has extensive degrees of customization, which might be overwhelming for some users, but because to its strong focusing technology, the camera can be quite easy to operate.
- Image and video stabilization on the full frame
- Monitors subjects at up to 10 frames per second.
- The resolution of 33MP allows for cropping of 4K60 footage while maintaining 10-bit color sampling.
- Recognition of subjects include humans, animals, and avian species
- Large lens library
- Configurable controls
- 6 frames per second in burst mode with the highest quality settings
- With the current firmware, the eye recognition focus isn't quite spot on.
- The rear display is not as sharp as those of our competitors.
- Pixel Shift multi-shot mode is not included.