Olympus E-M10 IV vs Sony A7S II
81 Imaging
62 Features
83 Overall
70
68 Imaging
61 Features
76 Overall
67
Olympus E-M10 IV vs Sony A7S II Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Tilting Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 3840 x 2160 video
- Micro Four Thirds Mount
- 383g - 122 x 84 x 49mm
- Launched August 2020
- Older Model is Olympus E-M10 III
(Full Review)
- 12MP - Full frame Sensor
- 3" Tilting Screen
- ISO 100 - 102400 (Bump to 409600)
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 627g - 127 x 96 x 60mm
- Released October 2015
- Superseded the Sony A7S
- New Model is Sony A7S III
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Below, we will be comparing the Olympus E-M10 IV and Sony A7S II, one is a Entry-Level Mirrorless and the latter is a Pro Mirrorless by companies Olympus and Sony. There exists a crucial gap between the resolutions of the E-M10 IV (20MP) and A7S II (12MP) and the E-M10 IV (Four Thirds) and A7S II (Full frame) come with totally different sensor sizes.
Sora from OpenAI releases its first ever music videoThe E-M10 IV was introduced 4 years after the A7S II which is quite a serious gap as far as technology is concerned. Both the cameras come with the identical body type (SLR-style mirrorless).
Before getting in to a complete comparison, below is a concise summary of how the E-M10 IV scores vs the A7S II with regard to portability, imaging, features and an overall score.
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This is a preview of the gallery images for Olympus OM-D E-M10 IV and Sony Alpha A7S II. The whole galleries are provided at Olympus E-M10 IV Gallery and Sony A7S II Gallery.
Reasons to pick Olympus E-M10 IV over the Sony A7S II
| E-M10 IV | A7S II | |||
|---|---|---|---|---|
| Released | August 2020 |  | October 2015 | More modern by 59 months |
| Selfie screen |  | Easy selfies | ||
| Touch friendly screen |  | Quickly navigate |
Reasons to pick Sony A7S II over the Olympus E-M10 IV
| A7S II | E-M10 IV | |||
|---|---|---|---|---|
| Screen resolution | 1229k |  | 1040k | Clearer screen (+189k dot) |
Common features in the Olympus E-M10 IV and Sony A7S II
| E-M10 IV | A7S II | |||
|---|---|---|---|---|
| Manual focus |  | Dial accurate focus | ||
| Screen type | Tilting |  | Tilting | Tilting screen |
| Screen dimension | 3" |  | 3" | Identical screen dimensions |
Olympus E-M10 IV vs Sony A7S II Physical Comparison
For anyone who is intending to carry around your camera often, you'll need to factor in its weight and dimensions. The Olympus E-M10 IV features physical measurements of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") along with a weight of 383 grams (0.84 lbs) while the Sony A7S II has dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") accompanied by a weight of 627 grams (1.38 lbs).
Check out the Olympus E-M10 IV and Sony A7S II in the latest Camera with Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you select at that moment. Below is the front view sizing comparison of the E-M10 IV vs the A7S II.
Taking into account dimensions and weight, the portability score of the E-M10 IV and A7S II is 81 and 68 respectively.
Olympus E-M10 IV vs Sony A7S II Sensor Comparison
More often than not, its tough to see the contrast between sensor sizes simply by looking at a spec sheet. The pic below may provide you a better sense of the sensor sizing in the E-M10 IV and A7S II.
As you can see, the 2 cameras have got different megapixels and different sensor sizes. The E-M10 IV having a tinier sensor will make shooting shallow DOF more challenging and the Olympus E-M10 IV will give extra detail using its extra 8MP. Higher resolution can also enable you to crop pictures much more aggressively. The fresher E-M10 IV is going to have a benefit in sensor tech.
Olympus E-M10 IV vs Sony A7S II Screen and ViewFinder
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Olympus E-M10 IV vs Sony A7S II Specifications
| Olympus OM-D E-M10 IV | Sony Alpha A7S II | |
|---|---|---|
| General Information | ||
| Brand Name | Olympus | Sony |
| Model type | Olympus OM-D E-M10 IV | Sony Alpha A7S II |
| Category | Entry-Level Mirrorless | Pro Mirrorless |
| Launched | 2020-08-04 | 2015-10-12 |
| Body design | SLR-style mirrorless | SLR-style mirrorless |
| Sensor Information | ||
| Chip | TruePic VIII | Bionz X |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | Full frame |
| Sensor dimensions | 17.4 x 13mm | 35.6 x 23.8mm |
| Sensor area | 226.2mm² | 847.3mm² |
| Sensor resolution | 20 megapixels | 12 megapixels |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Max resolution | 5184 x 3888 | 4240 x 2832 |
| Max native ISO | 25600 | 102400 |
| Max enhanced ISO | - | 409600 |
| Min native ISO | 200 | 100 |
| RAW format | ||
| Min enhanced ISO | 100 | 50 |
| Autofocusing | ||
| Manual focusing | ||
| Touch focus | ||
| Continuous autofocus | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Total focus points | 121 | 169 |
| Lens | ||
| Lens support | Micro Four Thirds | Sony E |
| Amount of lenses | 107 | 121 |
| Crop factor | 2.1 | 1 |
| Screen | ||
| Display type | Tilting | Tilting |
| Display sizing | 3 inch | 3 inch |
| Display resolution | 1,040 thousand dot | 1,229 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder | Electronic | Electronic |
| Viewfinder resolution | 2,360 thousand dot | 2,359 thousand dot |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.62x | 0.78x |
| Features | ||
| Min shutter speed | 60 seconds | 30 seconds |
| Max shutter speed | 1/4000 seconds | 1/8000 seconds |
| Max quiet shutter speed | 1/16000 seconds | - |
| Continuous shutter speed | 8.7 frames/s | 5.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Set white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 7.20 m (at ISO 200) | no built-in flash |
| Flash options | Redeye, fill-in, off, redeye slow-sync (1st-curtain), slow sync (1st-curtain), slow sync (2nd-curtain), manual | no built-in flash |
| Hot shoe | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Max flash sync | 1/250 seconds | - |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 24p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 50p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 30p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 25p / 52 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 24p / 52 Mbps, MOV, H.264, Linear PCM | 4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps]) |
| Max video resolution | 3840x2160 | 3840x2160 |
| Video data format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC S |
| Mic jack | ||
| Headphone jack | ||
| 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 | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 383g (0.84 lb) | 627g (1.38 lb) |
| Dimensions | 122 x 84 x 49mm (4.8" x 3.3" x 1.9") | 127 x 96 x 60mm (5.0" x 3.8" x 2.4") |
| DXO scores | ||
| DXO Overall 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 | 360 pictures | 370 pictures |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | BLS-50 | NP-FW50 |
| Self timer | Yes (2 or 12 sec, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse shooting | With downloadable app | |
| Storage media | SD/SDHC/SDXC (UHS-II supported) | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Storage slots | Single | Single |
| Price at release | $699 | $2,767 |