Olympus E-M5 III vs Sony A7
80 Imaging
62 Features
88 Overall
72
78 Imaging
70 Features
80 Overall
74
Olympus E-M5 III vs Sony A7 Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 414g - 125 x 85 x 50mm
- Launched October 2019
- Replaced the Olympus E-M5 II
- Refreshed by OM System OM-5
(Full Review)
- 24MP - Full frame Sensor
- 3" Tilting Screen
- ISO 50 - 25600
- 1/8000s Max Shutter
- 1920 x 1080 video
- Sony E Mount
- 474g - 127 x 94 x 48mm
- Revealed January 2014
- Replacement is Sony A7 II
Photography Glossary Olympus E-M5 III vs Sony A7 Overview
Lets look a bit more closely at the Olympus E-M5 III and Sony A7, one being a Advanced Mirrorless and the latter is a Pro Mirrorless by manufacturers Olympus and Sony. The resolution of the E-M5 III (20MP) and the A7 (24MP) is relatively well matched but the E-M5 III (Four Thirds) and A7 (Full frame) come with totally different sensor sizes.
President Biden pushes bill mandating TikTok sale or banThe E-M5 III was revealed 5 years later than the A7 and that is quite a sizable gap as far as technology is concerned. Each of the cameras offer the identical body type (SLR-style mirrorless).
Before we go through a in depth comparison, below is a simple overview of how the E-M5 III scores vs the A7 in relation to portability, imaging, features and an overall grade.
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This is a preview of the gallery photos for Olympus OM-D E-M5 III and Sony Alpha A7. The full galleries are available at Olympus E-M5 III Gallery and Sony A7 Gallery.
Reasons to pick Olympus E-M5 III over the Sony A7
| E-M5 III | A7 | |||
|---|---|---|---|---|
| Revealed | October 2019 |  | January 2014 | More recent by 70 months |
| Screen type | Fully Articulated |  | Tilting | Fully Articulating screen |
| Selfie screen |  | Easy selfies | ||
| Touch screen |  | Quickly navigate |
Reasons to pick Sony A7 over the Olympus E-M5 III
| A7 | E-M5 III | |||
|---|---|---|---|---|
| Screen resolution | 1230k |  | 1040k | Crisper screen (+190k dot) |
Common features in the Olympus E-M5 III and Sony A7
| E-M5 III | A7 | |||
|---|---|---|---|---|
| Manually focus |  | Dial precise focus | ||
| Screen sizing | 3" |  | 3" | Equivalent screen dimensions |
Olympus E-M5 III vs Sony A7 Physical Comparison
If you are going to lug around your camera often, you will want to factor in its weight and size. The Olympus E-M5 III comes with physical dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") having a weight of 414 grams (0.91 lbs) and the Sony A7 has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") having a weight of 474 grams (1.04 lbs).
Check the Olympus E-M5 III and Sony A7 in the new Camera with Lens Size Comparison Tool.
Keep in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are working with during that time. The following is the front view dimension comparison of the E-M5 III vs the A7.
Using dimensions and weight, the portability score of the E-M5 III and A7 is 80 and 78 respectively.
Olympus E-M5 III vs Sony A7 Sensor Comparison
Normally, it can be tough to see the gap between sensor measurements purely by checking technical specs. The visual underneath may give you a better sense of the sensor sizes in the E-M5 III and A7.
As you can tell, the two cameras offer different megapixels and different sensor measurements. The E-M5 III using its tinier sensor will make shooting shallower depth of field trickier and the Sony A7 will give more detail because of its extra 4MP. Higher resolution will also help you crop photographs a little more aggressively. The fresher E-M5 III is going to have an edge when it comes to sensor tech.
Olympus E-M5 III vs Sony A7 Screen and ViewFinder
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Olympus E-M5 III vs Sony A7 Specifications
| Olympus OM-D E-M5 III | Sony Alpha A7 | |
|---|---|---|
| General Information | ||
| Company | Olympus | Sony |
| Model type | Olympus OM-D E-M5 III | Sony Alpha A7 |
| Type | Advanced Mirrorless | Pro Mirrorless |
| Launched | 2019-10-17 | 2014-01-22 |
| Physical type | SLR-style mirrorless | SLR-style mirrorless |
| Sensor Information | ||
| Powered by | TruePic VIII | Bionz X |
| Sensor type | MOS | CMOS |
| Sensor size | Four Thirds | Full frame |
| Sensor dimensions | 17.4 x 13mm | 35.8 x 23.9mm |
| Sensor surface area | 226.2mm² | 855.6mm² |
| Sensor resolution | 20MP | 24MP |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Full resolution | 5184 x 3888 | 6000 x 4000 |
| Max native ISO | 25600 | 25600 |
| Lowest native ISO | 200 | 50 |
| RAW photos | ||
| Lowest boosted ISO | 64 | - |
| Autofocusing | ||
| Manual focusing | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | 121 | 117 |
| Cross type focus points | - | 25 |
| Lens | ||
| Lens mount type | Micro Four Thirds | Sony E |
| Number of lenses | 107 | 121 |
| Focal length multiplier | 2.1 | 1 |
| Screen | ||
| Type of display | Fully Articulated | Tilting |
| Display sizing | 3 inches | 3 inches |
| Display resolution | 1,040 thousand dots | 1,230 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch display | ||
| Display technology | - | Xtra Fine LCD |
| Viewfinder Information | ||
| Viewfinder | Electronic | Electronic |
| Viewfinder resolution | 2,360 thousand dots | 2,359 thousand dots |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.68x | 0.71x |
| Features | ||
| Slowest shutter speed | 60 secs | 30 secs |
| Maximum shutter speed | 1/8000 secs | 1/8000 secs |
| Maximum quiet shutter speed | 1/32000 secs | - |
| Continuous shooting rate | 30.0fps | 5.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash settings | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual | no built-in flash |
| External flash | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Maximum flash synchronize | 1/250 secs | 1/250 secs |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM | 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) |
| Max video resolution | 4096x2160 | 1920x1080 |
| Video file format | MPEG-4, H.264 | MPEG-4, AVCHD |
| Mic support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Built-In | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 414 grams (0.91 pounds) | 474 grams (1.04 pounds) |
| Dimensions | 125 x 85 x 50mm (4.9" x 3.3" x 2.0") | 127 x 94 x 48mm (5.0" x 3.7" x 1.9") |
| DXO scores | ||
| DXO All around rating | not tested | 90 |
| DXO Color Depth rating | not tested | 24.8 |
| DXO Dynamic range rating | not tested | 14.2 |
| DXO Low light rating | not tested | 2248 |
| Other | ||
| Battery life | 310 shots | 340 shots |
| Form of battery | Battery Pack | Battery Pack |
| Battery ID | BLN-1 | NP-FW50 |
| Self timer | Yes (2 or 10 secs, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse feature | With downloadable app | |
| Storage type | SD/SDHC/SDXC (UHS-II supported) | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Card slots | One | One |
| Cost at launch | $1,199 | $798 |