Olympus E-M5 III vs Sony A7S
80 Imaging
62 Features
88 Overall
72
77 Imaging
60 Features
73 Overall
65
Olympus E-M5 III vs Sony A7S Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- 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
- Released October 2019
- Previous Model is Olympus E-M5 II
- Updated by OM System OM-5
(Full Review)
- 12MP - Full frame Sensor
- 3" Tilting Screen
- ISO 100 - 409600
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 489g - 127 x 94 x 48mm
- Launched April 2014
- Replacement is Sony A7S II
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Here is a in-depth review of the Olympus E-M5 III vs Sony A7S, former being a Advanced Mirrorless while the latter is a Pro Mirrorless by competitors Olympus and Sony. There exists a large gap among the image resolutions of the E-M5 III (20MP) and A7S (12MP) and the E-M5 III (Four Thirds) and A7S (Full frame) possess totally different sensor dimensions.
Meta to Introduce 'AI-Generated' Labels for Media starting next monthThe E-M5 III was brought out 5 years later than the A7S and that is a fairly serious difference as far as camera technology is concerned. The two cameras come with the identical body type (SLR-style mirrorless).
Before delving straight into a thorough comparison, below is a short highlight of how the E-M5 III grades versus the A7S in terms of portability, imaging, features and an overall rating.
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Here is a preview of the gallery photos for Olympus OM-D E-M5 III & Sony Alpha A7S. The entire galleries are viewable at Olympus E-M5 III Gallery & Sony A7S Gallery.
Reasons to pick Olympus E-M5 III over the Sony A7S
| E-M5 III | A7S | |||
|---|---|---|---|---|
| Launched | October 2019 |  | April 2014 | Fresher by 68 months |
| Screen type | Fully Articulated |  | Tilting | Fully Articulating screen |
| Selfie screen |  | Easy selfies | ||
| Touch friendly screen |  | Quickly navigate |
Reasons to pick Sony A7S over the Olympus E-M5 III
| A7S | E-M5 III | |||
|---|---|---|---|---|
| Screen resolution | 1230k |  | 1040k | Sharper screen (+190k dot) |
Common features in the Olympus E-M5 III and Sony A7S
| E-M5 III | A7S | |||
|---|---|---|---|---|
| Focus manually |  | More accurate focusing | ||
| Screen dimension | 3" |  | 3" | Identical screen sizing |
Olympus E-M5 III vs Sony A7S Physical Comparison
For anybody who is planning to carry your camera regularly, you have to take into account its weight and dimensions. The Olympus E-M5 III offers physical dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) and the Sony A7S has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") having a weight of 489 grams (1.08 lbs).
Analyze the Olympus E-M5 III vs Sony A7S in our brand new Camera plus Lens Size Comparison Tool.
Always remember, the weight of an ILC will vary based on the lens you have at that time. Here is the front view measurement comparison of the E-M5 III vs the A7S.
Taking into consideration dimensions and weight, the portability rating of the E-M5 III and A7S is 80 and 77 respectively.
Olympus E-M5 III vs Sony A7S Sensor Comparison
Sometimes, it is difficult to see the difference in sensor sizing simply by going through a spec sheet. The graphic here may give you a clearer sense of the sensor dimensions in the E-M5 III and A7S.
Clearly, both the cameras have got different megapixel count and different sensor sizing. The E-M5 III due to its smaller sensor will make achieving shallower depth of field more challenging and the Olympus E-M5 III will show greater detail having its extra 8MP. Higher resolution will help you crop photographs much more aggressively. The fresher E-M5 III is going to have a benefit with regard to sensor tech.
Olympus E-M5 III vs Sony A7S Screen and ViewFinder
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Olympus E-M5 III vs Sony A7S Specifications
| Olympus OM-D E-M5 III | Sony Alpha A7S | |
|---|---|---|
| General Information | ||
| Make | Olympus | Sony |
| Model | Olympus OM-D E-M5 III | Sony Alpha A7S |
| Type | Advanced Mirrorless | Pro Mirrorless |
| Released | 2019-10-17 | 2014-04-06 |
| Physical type | SLR-style mirrorless | SLR-style mirrorless |
| Sensor Information | ||
| Processor Chip | 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 area | 226.2mm² | 855.6mm² |
| Sensor resolution | 20 megapixels | 12 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Peak resolution | 5184 x 3888 | 4240 x 2832 |
| Highest native ISO | 25600 | 409600 |
| Minimum native ISO | 200 | 100 |
| RAW data | ||
| Minimum enhanced ISO | 64 | - |
| Autofocusing | ||
| Manual focus | ||
| Touch to focus | ||
| Continuous AF | ||
| Single AF | ||
| AF tracking | ||
| Selective AF | ||
| AF center weighted | ||
| AF multi area | ||
| AF live view | ||
| Face detection AF | ||
| Contract detection AF | ||
| Phase detection AF | ||
| Number of focus points | 121 | 25 |
| Lens | ||
| Lens mount | Micro Four Thirds | Sony E |
| Total lenses | 107 | 121 |
| Focal length multiplier | 2.1 | 1 |
| Screen | ||
| Screen type | Fully Articulated | Tilting |
| Screen diagonal | 3 inch | 3 inch |
| Screen resolution | 1,040k dots | 1,230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch capability | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Electronic |
| Viewfinder resolution | 2,360k dots | 2,359k dots |
| Viewfinder coverage | 100 percent | 100 percent |
| Viewfinder magnification | 0.68x | 0.71x |
| Features | ||
| Min shutter speed | 60s | 30s |
| Max shutter speed | 1/8000s | 1/8000s |
| Max silent shutter speed | 1/32000s | - |
| Continuous shutter rate | 30.0 frames per second | 5.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | no built-in flash | no built-in flash |
| Flash options | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual | no built-in flash |
| External flash | ||
| AEB | ||
| White balance bracketing | ||
| Max flash synchronize | 1/250s | - |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM | 3840 x 2160, XAVC S 1080 60p(50Mbps), 30p (50Mbps), 24p (50Mbps). 720 120p (50Mbps). AVCHD 60p (28Mbps), 60i (24Mbps/17Mbps), 24p (24Mbps/17Mbps) |
| Highest video resolution | 4096x2160 | 3840x2160 |
| Video format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC |
| Mic port | ||
| Headphone port | ||
| 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 proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 414 grams (0.91 lb) | 489 grams (1.08 lb) |
| 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 Overall score | not tested | 87 |
| DXO Color Depth score | not tested | 23.9 |
| DXO Dynamic range score | not tested | 13.2 |
| DXO Low light score | not tested | 3702 |
| Other | ||
| Battery life | 310 photographs | 360 photographs |
| Battery type | Battery Pack | Battery Pack |
| Battery model | BLN-1 | NP-FW50 |
| Self timer | Yes (2 or 10 secs, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse recording | With downloadable app | |
| Type of storage | SD/SDHC/SDXC (UHS-II supported) | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Card slots | Single | Single |
| Launch cost | $1,199 | $1,998 |