Sony Alpha 7R IV vs Fujifilm X-T20

In this comparison, we will evaluate the Sony Alpha 7R IV and the Fujifilm X-T20, highlighting the advantages of each over the other, discussing their pros and cons, shared strengths and weaknesses, and providing a rating based on their available features and specifications to assist you in choosing the one that best suits your needs.

Sony Alpha 7R IV was introduced in July 2019 and Fujifilm X-T20 was introduced in January 2017. Let us first list highlights of the models.

Now that we've looked at the most essential specifications and gained a basic understanding of these cameras, we can delve into more details and see the differences between them.

This section shows those features and specifications which are the reason to choose Sony Alpha 7R IV over Fujifilm X-T20.

This section shows those features and specifications which are the reason to choose Fujifilm X-T20 over Sony Alpha 7R IV.

We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

Screen

Sony Alpha 7R IV and Fujifilm X-T20 have 3.0" Tilting screens with 1,440k dot and 1,040k dot resolutions respectively. Tilting screen makes cameras very useful for photography purposes but not so useful for video shooting. Both models feature touchscreen which has advantages such as easy menu navigation, intuitive controls, quick setting adjustment and most importantly a Touch-to-Focus functionality allowing users to select a specific point on the screen where they want the camera to focus. This feature can be helpful for achieving precise focus in both photo and video recording.

Viewfinder

Sony Alpha 7R IV has a built-in 0.5" Electronic (OLED) viewfinder with 5,760k dot resolution and Fujifilm X-T20 has a built-in Electronic viewfinder with 2,360k dot resolution. They both have 100% coverage.

Sony Alpha 7R IV features a 61.0 megapixel Full Frame BSI-CMOS sensor with dimensions of 35.7 x 23.8 mm and a total area of 849.7 mm². Its native ISO range is 100 - 32,000 and expands to 50 - 102,800 in boosted mode. Fujifilm X-T20 features a 24.3 megapixel APS-C CMOS X-TRANS III sensor with dimensions of 23.5 x 15.6 mm and a total area of 243.4 mm². Its native ISO range is 200 - 12,800 and expands to 100 - 51,200 in boosted mode.

Sony Alpha 7R IV has BSI-CMOS sensor, short for Backside Illuminated Complementary Metal-Oxide-Semiconductor sensor. In traditional CMOS sensors, the wiring and circuitry are located on the front side of the sensor, which can block some of the incoming light. BSI technology flips this design by placing the photosensitive elements (pixels) on the backside of the sensor, allowing more light to reach the pixels. This significantly enhances light sensitivity and improves low-light performance. BSI-CMOS sensors are particularly effective in low-light conditions, as they can capture more light, resulting in brighter and less noisy images. This makes them well-suited for indoor and night photography. BSI-CMOS sensors deliver a higher SNR and reduced cross-talk.

Fujifilm X-T20 has CMOS X-TRANS III sensor

Here is a sensor size comparison chart where you can see how different sensors compare with each other:

Sensor size chart

	Sensor	Dimensions	Area	Aspect Ratio	Crop Factor
	Medium Format	44 x 33 mm	1452 mm2	4:3	0.79x
	Full Frame	36 x 24 mm	864 mm2	3:2	1x
	APS-H	27 x 18 mm	486 mm2	3:2	1.3x
	APS-C	23.6 x 15.6 mm	368.2 mm2	3:2	1.5x
	APS-C (Canon)	22.3 x 14.9 mm	332.3 mm2	3:2	1.6x
	Micro Four Thirds	17.4 x 13 mm	226.2 mm2	4:3	2x
	1-inch	13.2 x 8.8 mm	116.2 mm2	3:2	2.7x
	1/1.7-inch	7.44 x 5.58 mm	41.5 mm2	4:3	4.7x
	1/2.3-inch	6.17 x 4.55 mm	28.1 mm2	4:3	5.6x

Sony Alpha 7R IV is equipped with BIONZ X processor and can take pictures up to 9504 x 6336 resolution. Fujifilm X-T20 is equipped with X-Processor Pro2 processor and can take pictures up to 6000 x 4000 resolution. It can also take pictures with lower resolution like 4240 x 2832, 6000 x 3376, 4000, x 4000, 4240 x 2832, 4240 x 2384, 2832 x 2832, 3008 x 2000, 3008 x 1688, 2000 x 2000 with 1:1, 3:2, 16:9 aspect ratios.

Lens Mount

Sony Alpha 7R IV has Sony E lens mount and Fujifilm X-T20 has Fujifilm X lens mount. Due to Full Frame sensor in Sony Alpha 7R IV its crop factor is equal to 1x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length. Due to APS-C sensor in Fujifilm X-T20 its crop factor is equal to 1.5x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.5.

No Low-Pass Filter

There is no optical low-pass filter (OLPF), also known as an anti-aliasing filter, in front of the sensor on either of the cameras. This results in a slightly sharper image but may also introduce moiré patterns and aliasing artifacts when photographing subjects with fine, repetitive patterns or details.

In-Body Image Stabilization on Sony Alpha 7R IV

Sony Alpha 7R IV has a built-in 5-Axis Sensor Shift in-body image stabilization (IBIS) with 5.5 stops of compensation. This means that you are still getting vibration reduction when camera is paired with non-image stabilizied lenses. It also works with lenses with optical image stabilization and in combination can achieve even better compensation.

Built-in Wi-Fi

Cameras have built-in Wi-Fi (Wi-Fi 5 802.11ac/b/g/n 2.4/5 GHz on Sony Alpha 7R IV, 802.11b/g/n 2.4 GHz on Fujifilm X-T20) which allows to easily transfer photos and videos from the camera to other Wi-Fi-enabled devices, such as smartphones, tablets, printers, or computers. This eliminates the need for cables and allows for quick and convenient media sharing and social media integration. It gives you the ability to control your camera remotely using a smartphone or tablet. This is particularly useful for taking self-portraits, group shots, or capturing images in challenging conditions without having to touch the camera. Firmware updates can also be downloaded and installed wirelessly.
  Check out the cameras in our database that have built-in WiFi.

Bluetooth on Sony Alpha 7R IV

Sony Alpha 7R IV has a built-in Bluetooth which lets you to connect the camera to a smartphone or a dedicated remote control device. This allows you to remotely trigger the camera, adjust settings and controls remotely through a paired mobile app. While Wi-Fi is generally faster for transferring larger files, Bluetooth can be used for small, selective transfers, it can provide real-time information about your camera's battery status, memory card capacity, and other key settings directly on your paired smartphone or smartwatch.
  Check out the cameras in our database that have built-in Bluetooth.

NFC on Sony Alpha 7R IV

Sony Alpha 7R IV has Near Field Communication (NFC) technology which simplifies the process of pairing it with other NFC-enabled devices like smartphones or tablets. It allows to quickly transfer photos and videos or remotely control the camera from compatible device. NFC can also be used for authentication and security purposes. It can verify your identity before accessing certain features or transferring sensitive data. It can be used with NFC-enabled accessories as well, such as lenses, flashes and GPS devices.

USB Inputs and HDMI Outputs

Both models have USB inputs for data transfer. Sony Alpha 7R IV has a Micro HDMI and Fujifilm X-T20 has a Micro HDMI connector for video signal output.

Battery

Sony Alpha 7R IV comes with NP-FZ100 battery pack with battery life of 670 shots and Fujifilm X-T20 comes with NP-W126S battery pack with battery life of 350 shots.

External Storage Slots

Sony Alpha 7R IV has Dual SD/SDHC/SDXC (UHS-II) card slots. Fujifilm X-T20 has a single SD/SDHC/SDXC (UHS-I) card slot.

Shutter

Sony Alpha 7R IV has Electronic shutter. Fujifilm X-T20 has Focal Plane shutter. Shutter speed can go up to 1/8000 sec on Sony Alpha 7R IV, and up to 1/32000 sec with electronic shutter and up to 1/4000 sec with mechanical shutter on Fujifilm X-T20. Sony Alpha 7R IV can shoot continuously up to 10.0 fps. Fujifilm X-T20 can shoot continuously up to 14.0 fps.

Focusing

Sony Alpha 7R IV has Fast Hybrid AF (Phase-detection / Contrast-detection) system with 567 focusing points and Fujifilm X-T20 has 325 focusing points. Sony Alpha 7R IV has detection range from -3 to +20 EV.

Exposure

Exposure meterings of Sony Alpha 7R IV ranges from -3 to +20 EV and you can set the exposure compensation within the ±5 EV range on Sony Alpha 7R IV and ±5 EV range on Fujifilm X-T20. You can also do exposure bracketing and manual exposure adjustment on Sony Alpha 7R IV and exposure bracketing and manual exposure adjustment on Fujifilm X-T20.

Flash

Fujifilm X-T20 has a built-in flash with maximum range of 5.00 m at ISO 100 and also accepts external flash which can be connected via Hot Shoe. Sony Alpha 7R IV has no built-in flash but an external flash may be connected via Intelligent Hot Shoe or PC Terminal. The fastest flash synchronization speed is 1/250 sec on Sony Alpha 7R IV and 1/180 sec on Fujifilm X-T20.

Sony Alpha 7R IV body has dimensions of 129 x 96 x 78 mm (5.08 x 3.78 x 3.07") and Fujifilm X-T20 body has dimensions of 118 x 83 x 41 mm (4.65 x 3.27 x 1.61"). Sony Alpha 7R IV weighs 665 g (1.47 lb / 23.46 oz) and Fujifilm X-T20 weighs 383 g (0.84 lb / 13.51 oz).

Sony Alpha 7R IV

Fujifilm X-T20

129 mm

96 mm

118 mm

83 mm

96 mm

83 mm

78 mm

41 mm