Canon EOS R5 vs Sony a1: What to choose?

Both the Sony a1 and the Canon EOS R5 are full-frame mirrorless cameras with excellent speed and resolution. The Sony a1 is a somewhat newer and more costly camera, but both are competitive in their own right, and which is the "better" option will depend on your specific needs. What you should know is as follows!

Let’s dive into their Technical Specifications:

Camera Feature Canon EOS R5 Sony a1
Announced July 2020 January 2021
Camera Type Mirrorless Mirrorless
Sensor Type CMOS Stacked CMOS
Image Processor DIGIC X BIONZ XR
Resolution 45.0 MP 50.1 MP
Pixel Dimensions 8192×5464 8640×5760
Sensor Dimensions 36.0 x 24.0 mm (Full Frame) 35.9 x 24.0 mm (Full Frame)
Sensor Pixel Size 4.39µ 4.16µ
Low Pass Filter Yes No
IBIS (In-Body Image Stabilization) Yes Yes
Base ISO ISO 100 ISO 100
Max Native ISO ISO 51,200 ISO 32,000
Extended ISOs ISO 50-102,400 ISO 50-102,400
High-Resolution Sensor Shift Yes (JPEG only) Yes
Focus Stack Bracketing Yes No
Fastest Shutter Speed 1/8000 1/32000
Longest Shutter Speed 30 seconds 30 seconds
Continuous Shooting (Mechanical Shutter) 12 FPS 10 FPS
Continuous Shooting (Electronic Shutter) 20 FPS 30 FPS
Notes for High FPS Shooting None Compressed raw at 30 FPS (uncompressed and lossless compressed raw at 20 FPS)
Buffer Size (Raw) 83 frames (20 FPS), 180 frames (12 FPS) 155 frames (30 FPS), 238 frames (20 FPS)
Autofocus System Hybrid PDAF Hybrid PDAF
Autofocus Points 1053 759
Low-Light AF Sensitivity (f/2 Lens, ISO 100) -4.5 EV -4 EV
Standard Flash Sync Speed 1/250 1/400
Video Features Canon EOS R5 Sony a1
Maximum Video Bit Depth (Internal) 12 bits 10 bits
Maximum Video Bit Depth (External) 12 bits 12 bits
Raw Video Yes Yes, externally
8K Maximum Framerate 30 FPS 30 FPS
4K Maximum Framerate 120 FPS 120 FPS
1080P Maximum Framerate 120 FPS 240 FPS
Additional Video Crop Factor No No
Chroma Subsampling 4:2:2 4:2:2
Video Recording Limit 30 min 780 min
Physical and Other Features Canon EOS R5 Sony a1
Card Slots 2 2
Slot 1 Type CFExpress Type B CFExpress Type A, or SD (UHS-II)
Slot 2 Type SD (UHS-II) CFExpress Type A, or SD (UHS-II)
Rear LCD Size (Diagonal) 3.2 in 3.0 in
Rear LCD Resolution 2.1 million dots 1.44 million dots
Articulating LCD Fully Articulating Single Axis
Touchscreen Yes Yes
Viewfinder EVF EVF
Viewfinder Magnification 0.76x 0.90x
Viewfinder Resolution 5.76 million dots 9.44 million dots
Viewfinder Coverage 100% 100%
Voice Memo Yes Yes
Built-in Flash No No
GPS No No
Bluetooth Yes Yes
WiFi Yes Yes
USB Type Type C 3.1 Type C 3.2 Gen 1
Battery Type LP-E6NH NP-FZ100
Battery Life (Viewfinder) 220 frames 430 frames
Battery Life (Rear LCD) 320 frames 530 frames
Battery Life (Eco Mode) 490 frames N/A
Weather Sealed Yes Yes
Weight (Body Only w/ Battery + Card) 738 g (1.63 lbs.) 737 g (1.62 lbs.)
Dimensions (LxHxD) 138 x 98 x 88 mm (5.4 x 3.8 x 3.5″) 129 x 97 x 81 mm (5.1 x 3.9 x 3.3″)

As you can see, there are a lot of similarities, and even a lot of the variations are little (such as the barely perceptible difference between 45 and 50 megapixels). However, each camera has certain true advantages in some situations.

For instance, the Sony a1's full-resolution 30 FPS mode makes it potentially superior to the Canon EOS R5's 20 FPS option for high-speed shooting. You might be able to get by with even 20 frames per second instead of 30! Even while the EOS R5 isn't far behind, the a1 wins out in high-speed scenarios when you combine it with its higher buffer capacity.

Video-wise, it's split 50/50. While the Sony a1 requires an external recorder to record raw video, the Canon EOS R5 can record 8K raw video internally. While the Sony a1 is not flawless in this regard, it is still superior to the EOS R5, which occasionally experiences overheating problems when filming at full definition. Additionally, the Sony a1 has a larger recording limit (13 hours as opposed to just 30 minutes) and slightly superior slow-motion capabilities. Therefore, which is preferable here depends on your demands.

It is fairly evenly matched in terms of other features. The Sony a1 boasts a better electronic viewfinder, but the Canon EOS R5 has a better rear LCD. The Sony also has a longer-lasting battery. Nonetheless, it's very amazing that the EOS R5 is more than $2500 less expensive when you take into account how similar the two cameras perform. That leaves you with a considerable amount of money to upgrade your equipment with some nice lenses.

Summary

Even though the two cameras are quite close, I would lean toward the Sony a1 for sports and wildlife photography. Although the Sony's 30 frames per second mode may seem high, it actually allows you to take 1.5 times as many pictures per second as the Canon EOS R5. That might make a difference for tiny variations in a bird's wing position or an athlete's face expression.

One significant distinction between the Sony and Canon cameras for landscape and tripod-based photography is that the Sony's high-resolution pixel-shift mode allows you to record raw files at up to 199 megapixels, while the Canon EOS R5 is only able to employ a less usable JPEG-only version of the feature. However, the a1 lacks a focus stack shooting mode, although the EOS R5 does. Which of those features you anticipate using more will depend on that! In all other respects, the two cameras are fairly similar for taking landscape photos, but because the EOS R5 is less expensive, I would choose it.

Furthermore, I would argue that there aren't many situations in which one of these cameras is obviously superior to the other when it comes to other photographic genres. Lens lineup is probably the most significant query. Although Sony now offers a wider selection of mirrorless lenses than Canon, Canon does have some intriguing lenses that might entice you to choose the RF mount. To be honest, if you couldn't decide between these two cameras, I would go with the lenses instead of the cameras.

What advantages does the Sony a1 have over the Canon EOS R5?

  • larger buffer and faster frame rate for capturing quick action shots.

  • Improved rear display resolution, approximately 1.5 times more dots, facilitating field image review

  • Significantly reduced price, saving $2600

What advantages does the Sony A1 have over the EOS R5?

  • More megapixels by 1.11 (45.0MP vs. 50.1MP)

  • With around 1.6 times more dots on the higher resolution electronic viewfinder, photography becomes more pleasurable.

  • Improved battery life when looking through the viewfinder; CIPA measurements show about 210 extra shots.