Sony α7 IV
2021 full-frame mirrorless camera
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The Sony α7 IV (model ILCE-7M4) is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced[1] on 21 October 2021 as the successor to the Sony α7 III. Featuring a new 34.1MP (approx. total)[2] back-illuminated CMOS sensor inside, latest BIONZ XR™ image processor, Real-Time Eye AF tracking and 4K 60p video with Super 35mm mode[3]. It was succeeded by the Sony α7 V, announced on 2 December, 2025.[4]
| Overview | |
|---|---|
| Maker | Sony |
| Released | 21 October 2021 |
| Intro price | $2,499 USD body, $2,699 USD kit (28-70mm Zoom Lens) |
| Lens | |
| Lens mount | Sony E-mount |
| Lens | Interchangeable |
| Compatible lenses | Full-Frame and APS-C E-mount lenses |
| Sensor/medium | |
| Sensor type | BSI-CMOS |
| Sensor size | 35.9 × 23.9 mm (Full frame type) |
| Sensor maker | Sony Semiconductor Solutions Corporation |
| Maximum resolution | 7008 × 4672 (33 megapixels) |
| Recording medium | SD, SDHC, SDXC, CF Express Type A memory card |
| Flash | |
| Flash | No |
| Flash synchronization | 1/250 second (Full-frame), 1/320 second (APS-C size) |
| Flash bracketing | Sony Mi-Shoe Mount |
| Shutter | |
| Shutter | Mechanical, Electronic |
| Shutter speeds | 1/8000 s to 30 s, BULB |
| Continuous shooting | 10 frames per second |
| Viewfinder | |
| Viewfinder | Yes, 1.3 cm (0.5 type) Electronic Viewfinder |
| Viewfinder magnification | Approx. 0.78× with 50 mm lens at infinity |
| Frame coverage | 100% |
| Image processing | |
| Image processor | BIONZ XR |
| General | |
| LCD screen | 76 mm (3 in) with 1.03M dots |
| Battery | NP-FZ100 Lithium-Ion rechargeable battery |
| AV port | HDMI (Type A) |
| Data port(s) | USB 2.0 (Micro-B), USB 10Gbps (USB-C), Wi-Fi 5, Bluetooth 4.2 |
| Dimensions | 131.3 by 96.4 by 79.8 mm (5.17 by 3.80 by 3.14 in) |
| Weight | 658 g (23 oz) |
| Made in | Thailand and China |
| Chronology | |
| Predecessor | Sony α7 III |
| Successor | Sony α7 V |
| References | |
| "ILCE-7M4 | Help Guide | Specifications". helpguide.sony.net. Sony Electronics Inc. Retrieved 28 April 2026. | |
Features
The camera features several advancements from its predecessor the Sony α7 III, also incorporating some pro features from the high-end Sony α1.
- 33 MP (approx. effective)[2] full-frame BSI-CMOS sensor
- 759 phase detection autofocus points and 425 contrast detection autofocus points[5]
- Continuous Eye-AF tracking for Human, Animal & Bird
- Improved UI layout[6] (new menu structure) compared to its predecessor
- Closed mechanical shutter function when the camera is turned off[7] (feature debuted in α1)
- Flip[5] 3-inch LCD vari-angle touchscreen with 1.04 million dots[6]
- 3.69-million-dot OLED Quad-VGA resolution 120 fps refresh rate EVF[6], 1.6× resolution compared to α7 III[1]
- 5-axis optical in-body image stabilisation with a 5.5 stops of shake reduction[8]
- 10 fps continuous burst shooting (mechanical or electronic silent shutter)[9] with compressed Raw, 6 fps with Uncompressed Raw[7]
- Live stream through the USB Type-C connector in 4K(15 fps) or FHD(60 fps)
- Up to 4K 30p video recording with 7K oversampling available in full-frame mode, 4K 60p recording in Super 35mm mode[10]
- 15-stop dynamic range[11]
- Slow & Quick motion features up to 120 fps
- Battery life with NP-FZ100 is rated at approximately 580 images using LCD screen and approximately 520 images using EVF according to CIPA rating method[11]
- Native ISO range is 100-51,200, extended ISO range is 50-204,800[9][12]
- 10-bit HEIF[13] image option (using .heic container)
- Weather sealed, magnesium alloy body
- No built-in flash[14]
- Multi Interface (Mi Shoe) shoe with Sony's unique metal shoe
- Supports 4 different video file formats (XAVC HS 4K, XAVC S-I 4K, XAVC S 4K, XAVC S HD)[15]
- Dual SD card slots,[16][17] single CFExpress Type A slot (SLOT 1)
Dual memory card slots of the right side of the Sony α7 IV, the camera supports the operation while both card slots are occupied, both card slots supports UHS-I and UHS-II class SD cards
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Dynamic range and color independent testing
Independent testing by Gerald Undone using Imatest software and a Xyla color range chart demonstrates 12.8 stops of dynamic range, which is approximately 1/3 of a stop better than the Sony α7S III and approximately the same as the Sony α1[18] It color matches fairly well with the α7S III and α1, with the α7S III leaning a bit green, the α1 a bit magenta, and this camera between the two (tested using DCS Labs -SW - CDM 28R - v15.2 A3 color chart) and with individual white balancing, the colors are very similar.[18]
Video formats
Camera is using in-house developed AVC Video Format called XAVC. The format is compressed format, achieving balanced quality and file size. Recording in color depth of 10 bits and 4:2:2 chroma subsampling is possible with Sony's XAVC codec.
- All Intra-frame system that compresses each frame individually to achieve best quality.
- When recording 4K movies in the XAVC HS format is an optional which is using a HEVC codec (H.265) and has high compression efficiency.
- The camera can record movies with higher image quality than XAVC S movies but the same data volume.
- Camera can record in "Long GOP" codec (H.264) compression, which is compressing multiple frames to reduce file size.
Video resolutions and modes
PAL modes and NTSC modes have different recording frame rates and record settings.[15][16][17][19]
| File formats | Recoding frame rate | Record setting | APS-C/Super 35 mode availability |
|---|---|---|---|
| XAVC HS 4K | 50p | 200M 4:2:2 10-bit
150M 4:2:0 10-bit 100M 4:2:2 10-bit 75M 4:2:0 10-bit 45M 4:2:0 10-bit |
Forced |
| XAVC S 4K | 50p | 200M 4:2:2 10-bit
150M 4:2:0 8-bit |
Forced |
| 25p | 140M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| XAVC S HD | 50p | 50M 4:2:2 10-bit
50M 4:2:0 8-bit 25M 4:2:0 8-bit |
Available |
| 25p | 50M 4:2:2 10-bit
50M 4:2:0 8-bit 16M 4:2:0 8-bit |
Available | |
| 100p | 100M 4:2:0 8-bit
60M 4:2:0 8-bit |
Available | |
| XAVC S-I 4K | 50p | 500M 4:2:2 10-bit | Forced |
| 25p | 250M 4:2:2 10-bit | Available | |
| XAVC S-I HD | 50p | 185M 4:2:2 10-bit | Available |
| 25p | 93M 4:2:2 10-bit | Available |
| File formats | Recoding frame rate | Record setting | APS-C/Super 35 mode availability |
|---|---|---|---|
| XAVC HS 4K | 60p | 200M 4:2:2 10-bit
150M 4:2:0 10-bit 100M 4:2:2 10-bit 75M 4:2:0 10-bit 45M 4:2:0 10-bit |
Forced |
| 24p | 100M 4:2:2 10-bit
100M 4:2:0 10-bit 50M 4:2:2 10-bit 50M 4:2:0 10-bit 30M 4:2:0 10-bit |
Available | |
| XAVC S 4K | 60p | 200M 4:2:2 10-bit
150M 4:2:0 8-bit |
Forced |
| 30p | 140M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| 24p | 100M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| XAVC S HD | 60p | 50M 4:2:2 10-bit
50M 4:2:0 8-bit 25M 4:2:0 8-bit |
Available |
| 30p | 50M 4:2:2 10-bit
50M 4:2:0 8-bit 16M 4:2:0 8-bit |
Available | |
| 24p | 50M 4:2:2 10-bit
50M 4:2:0 8-bit |
Available | |
| 100p | 100M 4:2:0 8-bit
60M 4:2:0 8-bit |
Available | |
| XAVC S-I 4K | 60p | 600M 4:2:2 10-bit | Forced |
| 30p | 300M 4:2:2 10-bit | Available | |
| 24p | 240M 4:2:2 10-bit | Available | |
| XAVC S-I HD | 60p | 222M 4:2:2 10-bit | Available |
| 30p | 111M 4:2:2 10-bit | Available | |
| 24p | 89M 4:2:2 10-bit | Available |
Available Slow and Quick motion shooting modes in PAL and NTSC Mode:
| File formats | Recoding frame rate | Final clip frame rate | Record setting | APS-C/Super 35 mode availability |
|---|---|---|---|---|
| Slow and Quick
Motion (XAVC S) |
50p | 50 fps
25 fps (2x Quick motion) 12 fps (4.16x Quick motion) 6 fps (8.33x Quick motion) 3 fps (16.66x Quick motion) 2 fps (25x Quick motion) 1 fps (50x Quick motion) |
200M 4:2:2 10-bit
150M 4:2:0 8-bit |
Forced |
| 25p | 50 fps (2x Slow motion)
25 fps 12 fps (2.08x Quick motion) 6 fps (4.16x Quick motion) 3 fps (8.33x Quick motion) 2 fps (12.5x Quick motion) 1 fps (25x Quick motion) |
140M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| 100p | 100 fps
50 fps (2x Quick motion) 25 fps (4x Quick motion) 12 fps (8.33x Quick motion) 6 fps (16.66x Quick motion) 3 fps (33.33x Quick motion) 2 fps (50x Quick motion) 1 fps (100x Quick motion) |
100M 4:2:0 8-bit
60M 4:2:0 8-bit |
Available |
| File formats | Recoding frame rate | Final clip frame rate | Record setting | APS-C/Super 35 mode availability |
|---|---|---|---|---|
| Slow and Quck
Motion (XAVC S) |
60p | 60 fps
30 fps (2x Quick motion) 15 fps (4x Quick motion) 8 fps (7.5x Quick motion) 4 fps (15x Quick motion) 2 fps (30x Quick motion) 1 fps (60x Quick motion) |
200M 4:2:2 10-bit
150M 4:2:0 8-bit |
Forced |
| 30p | 60 fps (2x Slow motion)
30 fps 15 fps (2x Quick motion) 8 fps (3.75x Quick motion) 4 fps (7.5x Quick motion) 2 fps (15x Quick motion) 1 fps (30x Quick motion) |
140M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| 24p | 60 fps (2.5x Slow motion)
30 fps (1.25x Slow motion) 15 fps (1.6x Quick motion) 8 fps (3x Quick motion) 4 fps (6x Quick motion) 2 fps (12x Quick motion) 1 fps (24x Quick motion) |
140M 4:2:2 10-bit
100M 4:2:0 8-bit 60M 4:2:0 8-bit |
Available | |
| 120p (XAVC S HD Only) | 120 fps
60 fps (2x Slow motion) 30 fps (4x Quick motion) 15 fps (8x Quick motion) 8 fps (15x Quick motion) 4 fps (30x Quick motion) 2 fps (60x Quick motion) 1 fps (120x Quick motion) |
100M 4:2:0 8-bit
60M 4:2:0 8-bit |
Available |