Categories
Canon EOS 400D vs. Sony Alpha A7 III + 9
AF assist (auto-focus assist light)
Flash
Lamp
Lamp
Lamp
Lamp
Flash
Lamp
Lamp
Contrast autofocus
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Number of AF points (contrast)
425 ​
41 ​
425 ​
425 ​
Phase detection autofocus
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
AF support
Yes - with all AF lenses
Yes - with all AF lenses
Only lenses with AF-motor
Only lenses with AF-motor
Yes - with all AF lenses
Yes - with all AF lenses
Yes - with all AF lenses
Max number of AF points (incl. assistant)
9 ​
693 ​
425 ​
61 ​
143 ​
45 ​
399 ​
425 ​
Bluetooth
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Bluetooth version
4.1
4.2
4.2
4.2
4.1
4.1
4.1
4.1
4.1
GPS
No
No
No
No
No
Yes
No
No
No
No
NFC
No
Yes
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Wireless network (Wi-Fi)
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Compatible lenses (without adapter)
Canon EF, Canon EF-S
Sony E, Sony FE
Canon RF
Canon RF
Fujifilm X
Canon EF
Canon EF-M
Canon EF, Canon EF-S
Sony E, Sony FE
Sony E, Sony FE
Sony E, Sony FE
Lens included
No
No
No
No
No
No
Yes
No
No
No
No
Firewire
No
No
No
No
No
No
No
No
No
No
HDMI
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Microphone input
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
USB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
USB version
2.0
3 (Gen 2)
3 (Gen 2)
3 (Gen 2)
3 (Gen 2)
3 (Gen 1)
2.0
2.0
3 (Gen 1)
3 (Gen 2x2)
2.0
Available colours
Black
Black
Black
Black
Black, Silver
Black
Black, White, Silver
Black
Black
Black, Silver
Black
Dimensions (WxHxD)
Depth
65 mm
73.7 mm
88.4 mm
88 mm
58.8 mm
76 mm
58.7 mm
76.8 mm
74 mm
60 mm
60 mm
Height
94.2 mm
95.6 mm
97.5 mm
97.5 mm
92.8 mm
116 mm
88.1 mm
104.8 mm
96 mm
71 mm
67 mm
Width
126.5 mm
126.9 mm
138 mm
138 mm
132.5 mm
151 mm
116.3 mm
140.7 mm
127 mm
124 mm
120 mm
Product weight
510 g
650 g
680 g
738 g
539 g
890 g
387 g
701 g
657 g
509 g
403 g
Articulated screen
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Number of pixels (EVF)
2360000 pixels
3690000 pixels
5760000 pixels
3690000 pixels
2360000 pixels
3690000 pixels
2360000 pixels
2360000 pixels
Number of pixels (screen)
230000 pixels
921600 pixels
1620000 pixels
2100000 pixels
3690000 pixels
1620000 pixels
1040000 pixels
1040000 pixels
1440000 pixels
921600 pixels
921600 pixels
Screen size
2.5 inches
3 inches
3 inches
3.2 inches
3 inches
3.2 inches
3 inches
3 inches
3 inches
3 inches
3 inches
Separate info display
No
No
No
Yes
No
Yes
No
No
No
Touchscreen
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Viewfinder coverage
95 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
Viewfinder magnification
0.8 x
0.78 x
0.76 x
0.76 x
0.75 x
0.71 x
0.95 x
0.78 x
0.59 x
1.07 x
Viewfinder
Optical, LCD screen (LiveView)
LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
Optical, LCD screen (LiveView)
LCD screen (LiveView), EVF (electronic)
Optical, LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
LCD screen (LiveView), EVF (electronic)
Weather proof (moisture/dust)
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
External flash connection
Hot shoe
Hot shoe
Hot shoe
Hot shoe
Hot shoe, PC terminal
Hot shoe
Hot shoe
Hot shoe, PC terminal
Hot shoe
Flash
Built-in and external
External
External
External
External
External
Built-in and external
Built-in and external
External
Built-in and external
Flash metering system
E-TTL (Canon), E-TTL II (Canon)
TTL
E-TTL II (Canon)
E-TTL II (Canon)
TTL
E-TTL (Canon), E-TTL II (Canon)
E-TTL II (Canon)
E-TTL II (Canon)
TTL
TTL
X-sync speed
1/200 s
1/250 s
1/250 s
1/250 s
1/250 s
1/200 s
1/200 s
1/250 s
1/250 s
1/160 s
1/160 s
Anti-dust system
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Image stabiliser
Lens based only
Built-in
Built-in
Built-in
Lens based only
Lens based only
Lens based only
Lens based only
Built-in
Lens based only
Magnification (Crop factor)
1.6 x
1 x
1 x
1 x
1.5 x
1 x
1.6 x
1.6 x
1 x
1 x
1.5 x
Type of camera
Digital SLR
Mirrorless
Mirrorless
Mirrorless
Mirrorless
Digital SLR
Mirrorless
Digital SLR
Mirrorless
Mirrorless
Mirrorless
AEB/HDR support
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Built-in HDR function
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Exposure bracketing
0.3 - 2.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
0.3 - 3.0 ±EV
Number of exposures
3 images
3 - 9 images
3 - 9 images
2 - 7 images
3 images
3 - 9 images
Continuous shooting
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Frames (JPEG maximum speed)
27 images
163 images
1000 images
350 images
79 images
47 images
58 images
76 images
99 images
Number (RAW, max speed)
10 images
40 images
360 images
180 images
36 images
21 images
33 images
25 images
28 images
46 images
Speed (JPEG)
3 frames/s
10 frames/s
20 frames/s
20 frames/s
20 frames/s
7 frames/s
7.4 frames/s
10 frames/s
10 frames/s
11 frames/s
Speed (RAW)
3 frames/s
10 frames/s
20 frames/s
20 frames/s
20 frames/s
10 frames/s
10 frames/s
10 frames/s
11 frames/s
File format (Still)
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
JPEG, RAW
Image sensor format
APS-C
Full format (35 mm)
Full format (35 mm)
Full format (35 mm)
APS-C
Full format (35 mm)
APS-C
APS-C
Full format (35 mm)
Full format (35 mm)
APS-C
ISO sensitivity (basic ISO)
100 - 1600 ISO
100 - 51200 ISO
100 - 102400 ISO
100 - 51200 ISO
160 - 12800 ISO
100 - 32000 ISO
100 - 25600 ISO
100 - 51200 ISO
100 - 32000 ISO
100 - 51200 ISO
100 - 32000 ISO
Maximum resolution (stills)
3888x2592 pixels
6000x4000 pixels
8192x5464 pixels
6240x4160 pixels
6720x4480 pixels
6000x4000 pixels
7952x5304 pixels
6000x4000 pixels
6000x4000 pixels
Sensor format
22.2 x 14.8 mm
35.8 x 23.8 mm
24 x 36 mm
24 x 36 mm
23.5 x 15.6 mm
24 x 36 mm
22.3 x 14.9 mm
22.3 x 14.9 mm
35.9 x 24 mm
23.5 x 15.6 mm
Sensor resolution (Effective number of pixels)
10.1 megapixels
24.2 megapixels
20.1 megapixels
45 megapixels
26 megapixels
30.4 megapixels
24.1 megapixels
32.5 megapixels
42.4 megapixels
24.2 megapixels
24.2 megapixels
Sensor type
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
Shutter speed
30 - 1/4000 s
30 - 1/8000 s
30 - 1/8000 s
30 - 1/8000 s
30 - 1/32000 s
30 - 1/8000 s
30 - 1/4000 s
30 - 1/8000 s
30 - 1/8000 s
30 - 1/4000 s
30 - 1/4000 s
Video recording
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Autofocus in recording mode
Yes - Contrast-AF
Yes - Contrast-AF
Yes - TTL-AF
Yes - Contrast-AF
Yes - Contrast-AF
Yes - Contrast-AF
Max resolution (video)
3840x2160p pixels
3840x2160p pixels
8192x4320p pixels
3840x2160p pixels
4096x2160p pixels
3840x2160p pixels
3840x2160p pixels
3840x2160p pixels
3840x2160p pixels
3840x2160p pixels
Max frame rate (highest resolution)
30 fps
120 fps
30 fps
60 fps
30 fps
25 fps
30 fps
30 fps
30 fps
30 fps
Max frame rate (regardless of res.)
120 fps
60 fps
120 fps
120 fps
120 fps
120 fps
120 fps
120 fps
120 fps
120 fps
Max resolution (highest frame rate)
1920x1080p pixels
1920x1080p pixels
4096x2160p pixels
1920x1080p pixels
1280x720p pixels
1280x720p pixels
1920x1080p pixels
3840x2160p pixels
1920x1080p pixels
Video file formats
AVCHD, XAVC S, AVC/H.264 .mp4
AVC/H.264 .mp4, HEVC/H.265
AVC/H.264 .mp4, HEVC/H.265
AVC/H.264 .mp4, HEVC/H.265
MJPEG, AVC/H.264 .mp4
AVC/H.264 .mp4
AVC/H.264 .mp4
AVCHD, XAVC S, AVC/H.264 .mp4
XAVC S
AVCHD, XAVC S, AVC/H.264 .mp4
With audio
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Yes - via the built-in and external mic
Release year
2006
2018
2020
2020
2018
2016
2018
2019
2017
2020
2019
Battery capacity (CIPA)
360 images
710 images
390 images
900 images
235 images
1300 images
530 images
680 images
360 images
Battery type
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Li-Ion
Compatible memory cards
Compact Flash, Micro Drive, Compact Flash II
Secure Digital, Memory Stick Duo, Memory Stick Pro Duo, Secure Digital HC, Secure Digital XC
Secure Digital, Secure Digital HC, Secure Digital XC
Secure Digital, Secure Digital HC, Secure Digital XC, CFExpress
Secure Digital, Secure Digital HC, Secure Digital XC
Compact Flash, Micro Drive, Secure Digital, Compact Flash II, Secure Digital HC, Secure Digital XC
Secure Digital, Secure Digital HC, Secure Digital XC
Secure Digital, Secure Digital HC, Secure Digital XC
Secure Digital, Memory Stick Pro Duo, Secure Digital HC, Secure Digital XC
Secure Digital, Secure Digital HC, Secure Digital XC
Secure Digital, Memory Stick Pro Duo, Secure Digital HC, Secure Digital XC
Storage features
Dual memory card slots
Dual memory card slots
Dual memory card slots
Dual memory card slots
Dual memory card slots
Dual memory card slots