Canon EOS R8 vs Canon EOS 90D

In this comparison, we will evaluate the Canon EOS R8 and the Canon EOS 90D, 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.

Canon EOS R8 was introduced in February 2023 and Canon EOS 90D was introduced in August 2019. 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 Canon EOS R8 over Canon EOS 90D.

This section shows those features and specifications which are the reason to choose Canon EOS 90D over Canon EOS R8.

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

Canon EOS R8 and Canon EOS 90D have 3.0" Fully Articulated screens with 1,620k dot and 1,040k dot resolutions respectively. Fully articulated screen makes cameras selfie and vlogger friendly and generally very 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

Canon EOS R8 has a built-in 0.39" Electronic (OLED) viewfinder with 2,360k dot resolution and Canon EOS 90D has a built-in Optical (pentaprism) viewfinder. They both have 100% coverage.

Canon EOS R8 features a 24.2 megapixel Full Frame CMOS sensor with dimensions of 35.9 x 23.9 mm and a total area of 858 mm². Its native ISO range is 100 - 102,400 and expands to 50 - 204,800 in boosted mode. Canon EOS 90D features a 32.5 megapixel APS-C CMOS sensor with dimensions of 22.3 x 14.9 mm and a total area of 222 mm². Its native ISO range is 100 - 25,600 and expands to 100 - 51,200 in boosted mode.

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

Canon EOS R8 is equipped with DIGIC X processor and can take pictures up to 6000 x 4000 resolution. Canon EOS 90D is equipped with DIGIC 8 processor and can take pictures up to 6960 x 4640 resolution.

Lens Mount

Canon EOS R8 has Canon RF lens mount and Canon EOS 90D has Canon EF/EF-S lens mount. Due to Full Frame sensor in Canon EOS R8 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 Canon EOS 90D its crop factor is equal to 1.6x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.6.

No Image Stabilization

The cameras do not have image stabilization. On Canon EOS R8 it means that you need lenses with optical image stabilization for vibration reduction. As for Canon EOS 90D nothing can be done. On Canon EOS 90D it means that you need lenses with optical image stabilization for vibration reduction. As for Canon EOS R8 nothing can be done.

Built-in Wi-Fi

Cameras have built-in Wi-Fi (Wi-Fi 5 802.11ac/b/g/n 2.4/5 GHz on Canon EOS R8, 802.11b/g/n 2.4 GHz on Canon EOS 90D) 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

Canon EOS R8 and Canon EOS 90D have built-in Bluetooth (version 4.2 on Canon EOS R8) 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.

USB Inputs and HDMI Outputs

Both models have USB inputs for data transfer. Canon EOS R8 has a Micro HDMI and Canon EOS 90D has a Mini HDMI connector for video signal output.

Battery

Canon EOS R8 comes with LP-E17 battery pack with battery life of 290 shots and Canon EOS 90D comes with LP-E6N battery pack with battery life of 1300 shots.

External Storage Slots

Cameras have a single SD/SDHC/SDXC (UHS-II) card slot.

Shutter

Canon EOS R8 has Electronic 1st curtain shutter and Electronic shutter. Canon EOS 90D has Electronic shutter and Mechanical Focal Plane shutter. Shutter speed can go up to 1/16000 sec with electronic shutter and up to 1/4000 sec with electronic 1st curtain shutter on Canon EOS R8, and up to 1/16000 sec with electronic shutter and up to 1/8000 sec with mechanical shutter on Canon EOS 90D. Canon EOS R8 can shoot continuously up to 40.0 fps with electronic shutter and up to 6.0 fps with electronic 1st curtain shutter. Canon EOS 90D can shoot continuously up to 11.0 fps.

Focusing

Canon EOS R8 has Dual Pixel CMOS AF II system with 1053 focusing points and Canon EOS 90D has Dual Pixel CMOS AF system with 45 (45 cross-type) focusing points. Canon EOS R8 has detection range from -6.5 to +21 EV and Canon EOS 90D has detection range from -3 to +18 EV.

Exposure

Exposure meterings of Canon EOS R8 and Canon EOS 90D range from -3 to +20 EV and +1 to +20 EV respectively and you can set the exposure compensation within the ±3 EV range on Canon EOS R8 and ±5 EV range on Canon EOS 90D. You can also do exposure lock, exposure bracketing and manual exposure adjustment on Canon EOS R8 and exposure bracketing and manual exposure adjustment on Canon EOS 90D.

Flash

Canon EOS 90D has a built-in flash with maximum range of 12.00 m at ISO 100 and also accepts external flash which can be connected via Hot Shoe. Canon EOS R8 has no built-in flash but an external flash may be connected via Intelligent Hot Shoe. The fastest flash synchronization speed is 1/250 sec on both cameras.

Canon EOS R8 body has dimensions of 133 x 86 x 70 mm (5.24 x 3.39 x 2.76") and Canon EOS 90D body has dimensions of 141 x 105 x 77 mm (5.55 x 4.13 x 3.03"). Canon EOS R8 weighs 461 g (1.02 lb / 16.26 oz) and Canon EOS 90D weighs 701 g (1.55 lb / 24.73 oz).

Canon EOS R8

Canon EOS 90D

133 mm

86 mm

141 mm

105 mm

86 mm

105 mm

70 mm

77 mm