Canon SX420 IS vs Sony A7S III
80 Imaging
46 Features
34 Overall
41


61 Imaging
64 Features
92 Overall
75
Canon SX420 IS vs Sony A7S III Key Specs
(Full Review)
- 20MP - 1/2.3" Sensor
- 3" Fixed Screen
- ISO 100 - 1600
- Optical Image Stabilization
- 1280 x 720 video
- 24-1008mm (F3.5-6.6) lens
- 325g - 104 x 69 x 85mm
- Revealed January 2016
(Full Review)
- 12MP - Full frame Sensor
- 3" Fully Articulated Display
- ISO 80 - 102400 (Boost to 409600)
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 699g - 129 x 97 x 81mm
- Introduced July 2020
- Earlier Model is Sony A7S II

Canon SX420 IS vs Sony A7S III Overview
On this page, we are reviewing the Canon SX420 IS and Sony A7S III, former being a Small Sensor Superzoom while the other is a Pro Mirrorless by manufacturers Canon and Sony. There is a large difference among the resolutions of the SX420 IS (20MP) and A7S III (12MP) and the SX420 IS (1/2.3") and A7S III (Full frame) offer different sensor measurements.

The SX420 IS was launched 5 years before the A7S III and that is a fairly serious difference as far as camera tech is concerned. Each of these cameras have different body design with the Canon SX420 IS being a SLR-like (bridge) camera and the Sony A7S III being a SLR-style mirrorless camera.
Before going straight to a comprehensive comparison, here is a simple overview of how the SX420 IS grades against the A7S III in the way of portability, imaging, features and an overall grade.

Canon SX420 IS vs Sony A7S III Gallery
Below is a sample of the gallery pics for Canon PowerShot SX420 IS & Sony Alpha A7S III. The complete galleries are available at Canon SX420 IS Gallery & Sony A7S III Gallery.
Reasons to pick Canon SX420 IS over the Sony A7S III
SX420 IS | A7S III |
---|
Reasons to pick Sony A7S III over the Canon SX420 IS
A7S III | SX420 IS | |||
---|---|---|---|---|
Introduced | July 2020 | ![]() | January 2016 | More recent by 55 months |
Display type | Fully articulated | ![]() | Fixed | Fully Articulating display |
Display resolution | 1440k | ![]() | 230k | Crisper display (+1210k dot) |
Selfie screen | ![]() | Take selfies | ||
Touch friendly display | ![]() | Easily navigate |
Common features in the Canon SX420 IS and Sony A7S III
SX420 IS | A7S III | |||
---|---|---|---|---|
Focus manually | ![]() | Dial exact focusing | ||
Display dimensions | 3" | ![]() | 3" | Equal display measurements |
Canon SX420 IS vs Sony A7S III Physical Comparison
For anybody who is aiming to lug around your camera often, you'll need to think about its weight and dimensions. The Canon SX420 IS enjoys outside measurements of 104mm x 69mm x 85mm (4.1" x 2.7" x 3.3") and a weight of 325 grams (0.72 lbs) whilst the Sony A7S III has dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") along with a weight of 699 grams (1.54 lbs).
Take a look at the Canon SX420 IS and Sony A7S III in our completely new Camera & Lens Size Comparison Tool.
Always remember, the weight of an ILC will vary dependant on the lens you have at that moment. The following is a front view overall size comparison of the SX420 IS vs the A7S III.

Looking at size and weight, the portability score of the SX420 IS and A7S III is 80 and 61 respectively.

Canon SX420 IS vs Sony A7S III Sensor Comparison
Usually, its difficult to picture the contrast in sensor measurements merely by seeing a spec sheet. The photograph underneath should give you a stronger sense of the sensor sizing in the SX420 IS and A7S III.
As you can see, both cameras provide different resolutions and different sensor measurements. The SX420 IS featuring a smaller sensor is going to make getting shallower depth of field trickier and the Canon SX420 IS will show more detail utilizing its extra 8MP. Greater resolution can also let you crop photos more aggressively. The older SX420 IS will be disadvantaged when it comes to sensor innovation.

Canon SX420 IS vs Sony A7S III Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Canon SX420 IS vs Sony A7S III Specifications
Canon PowerShot SX420 IS | Sony Alpha A7S III | |
---|---|---|
General Information | ||
Manufacturer | Canon | Sony |
Model type | Canon PowerShot SX420 IS | Sony Alpha A7S III |
Category | Small Sensor Superzoom | Pro Mirrorless |
Revealed | 2016-01-05 | 2020-07-21 |
Body design | SLR-like (bridge) | SLR-style mirrorless |
Sensor Information | ||
Processor | DIGIC 4+ | Bionz XR |
Sensor type | CCD | BSI-CMOS |
Sensor size | 1/2.3" | Full frame |
Sensor dimensions | 6.17 x 4.55mm | 35.6 x 23.8mm |
Sensor surface area | 28.1mm² | 847.3mm² |
Sensor resolution | 20MP | 12MP |
Anti alias filter | ||
Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
Highest resolution | 5152 x 3864 | 4240 x 2832 |
Highest native ISO | 1600 | 102400 |
Highest boosted ISO | - | 409600 |
Lowest native ISO | 100 | 80 |
RAW pictures | ||
Lowest boosted ISO | - | 50 |
Autofocusing | ||
Manual focusing | ||
Autofocus touch | ||
Autofocus continuous | ||
Single autofocus | ||
Autofocus tracking | ||
Autofocus selectice | ||
Autofocus center weighted | ||
Multi area autofocus | ||
Live view autofocus | ||
Face detection autofocus | ||
Contract detection autofocus | ||
Phase detection autofocus | ||
Total focus points | - | 759 |
Lens | ||
Lens support | fixed lens | Sony E |
Lens zoom range | 24-1008mm (42.0x) | - |
Highest aperture | f/3.5-6.6 | - |
Macro focusing range | 0cm | - |
Available lenses | - | 121 |
Crop factor | 5.8 | 1 |
Screen | ||
Range of screen | Fixed Type | Fully articulated |
Screen diagonal | 3 inches | 3 inches |
Screen resolution | 230 thousand dot | 1,440 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch display | ||
Viewfinder Information | ||
Viewfinder type | None | Electronic |
Viewfinder resolution | - | 9,440 thousand dot |
Viewfinder coverage | - | 100% |
Viewfinder magnification | - | 0.91x |
Features | ||
Lowest shutter speed | 15 seconds | 30 seconds |
Highest shutter speed | 1/4000 seconds | 1/8000 seconds |
Continuous shooting speed | 0.5 frames/s | 10.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | - | Yes |
Custom white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | 5.00 m | no built-in flash |
Flash settings | Auto, flash on, slow synchro, flash off | no built-in flash |
Hot shoe | ||
AEB | ||
WB bracketing | ||
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Supported video resolutions | 1280 x 720 (25p), 640 x 480 (30p) | 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM |
Highest video resolution | 1280x720 | 3840x2160 |
Video data format | MPEG-4, H.264 | MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 |
Mic jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 3.2 Gen 1 (5 GBit/sec) |
GPS | None | None |
Physical | ||
Environment seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 325 grams (0.72 lb) | 699 grams (1.54 lb) |
Physical dimensions | 104 x 69 x 85mm (4.1" x 2.7" x 3.3") | 129 x 97 x 81mm (5.1" x 3.8" x 3.2") |
DXO scores | ||
DXO All around rating | not tested | 85 |
DXO Color Depth rating | not tested | 23.6 |
DXO Dynamic range rating | not tested | 13.3 |
DXO Low light rating | not tested | 2993 |
Other | ||
Battery life | 195 shots | 600 shots |
Battery form | Battery Pack | Battery Pack |
Battery ID | NB-11LH | NP-FZ100 |
Self timer | Yes (2 or 10 secs) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
Time lapse recording | With downloadable app | |
Storage media | SD/SDHC/SDXC | Dual SD/CFexpress Type A slots |
Storage slots | Single | 2 |
Cost at launch | $299 | $3,499 |