Olympus E-400 vs Sony A7S III
77 Imaging
43 Features
31 Overall
38
61 Imaging
64 Features
92 Overall
75
Olympus E-400 vs Sony A7S III Key Specs
(Full Review)
- 10MP - Four Thirds Sensor
- 2.5" Fixed Display
- ISO 100 - 1600
- No Video
- Micro Four Thirds Mount
- 435g - 130 x 91 x 53mm
- Revealed September 2006
- Successor is Olympus E-410
(Full Review)
- 12MP - Full frame Sensor
- 3" Fully Articulated Display
- ISO 80 - 102400 (Push to 409600)
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 699g - 129 x 97 x 81mm
- Introduced July 2020
- Superseded the Sony A7S II
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Following is a comprehensive comparison of the Olympus E-400 vs Sony A7S III, one is a Entry-Level DSLR and the other is a Pro Mirrorless by brands Olympus and Sony. The resolution of the E-400 (10MP) and the A7S III (12MP) is fairly similar but the E-400 (Four Thirds) and A7S III (Full frame) possess different sensor sizing.
President Biden pushes bill mandating TikTok sale or banThe E-400 was unveiled 15 years earlier than the A7S III which is quite a large gap as far as technology is concerned. The two cameras offer different body type with the Olympus E-400 being a Compact SLR camera and the Sony A7S III being a SLR-style mirrorless camera.
Before we go in to a detailed comparison, below is a short synopsis of how the E-400 matches up vs the A7S III when it comes to portability, imaging, features and an overall score.
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Below is a sample of the gallery pictures for Olympus E-400 and Sony Alpha A7S III. The full galleries are viewable at Olympus E-400 Gallery and Sony A7S III Gallery.
Reasons to pick Olympus E-400 over the Sony A7S III
| E-400 | A7S III |
|---|
Reasons to pick Sony A7S III over the Olympus E-400
| A7S III | E-400 | |||
|---|---|---|---|---|
| Introduced | July 2020 | September 2006 | More modern by 168 months | |
| Display type | Fully articulated | Fixed | Fully Articulating display | |
| Display sizing | 3" | 2.5" | Larger display (+0.5") | |
| Display resolution | 1440k | 215k | Clearer display (+1225k dot) | |
| Selfie screen | Easy selfies | |||
| Touch friendly display | Easily navigate |
Common features in the Olympus E-400 and Sony A7S III
| E-400 | A7S III | |||
|---|---|---|---|---|
| Focus manually | Dial exact focus |
Olympus E-400 vs Sony A7S III Physical Comparison
If you are looking to carry around your camera frequently, you will want to factor in its weight and measurements. The Olympus E-400 features outside measurements of 130mm x 91mm x 53mm (5.1" x 3.6" x 2.1") with a weight of 435 grams (0.96 lbs) whilst the Sony A7S III has proportions 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 Olympus E-400 vs Sony A7S III in the new Camera and Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at the time. Underneath is the front view proportions comparison of the E-400 and the A7S III.

Looking at dimensions and weight, the portability score of the E-400 and A7S III is 77 and 61 respectively.
Olympus E-400 vs Sony A7S III Sensor Comparison
Sometimes, it can be tough to picture the contrast between sensor sizes merely by reviewing specs. The pic underneath may provide you a stronger sense of the sensor measurements in the E-400 and A7S III.
All in all, both the cameras enjoy different megapixel count and different sensor sizes. The E-400 with its tinier sensor is going to make shooting shallow DOF more challenging and the Sony A7S III will offer extra detail having an extra 2MP. Greater resolution can also help you crop images far more aggressively. The more aged E-400 is going to be behind when it comes to sensor tech.
Olympus E-400 vs Sony A7S III Screen and ViewFinder
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Olympus E-400 vs Sony A7S III Specifications
| Olympus E-400 | Sony Alpha A7S III | |
|---|---|---|
| General Information | ||
| Make | Olympus | Sony |
| Model | Olympus E-400 | Sony Alpha A7S III |
| Type | Entry-Level DSLR | Pro Mirrorless |
| Revealed | 2006-09-14 | 2020-07-21 |
| Body design | Compact SLR | SLR-style mirrorless |
| Sensor Information | ||
| Processor | - | Bionz XR |
| Sensor type | CCD | BSI-CMOS |
| Sensor size | Four Thirds | Full frame |
| Sensor measurements | 17.3 x 13mm | 35.6 x 23.8mm |
| Sensor area | 224.9mm² | 847.3mm² |
| Sensor resolution | 10MP | 12MP |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 3:2 and 16:9 |
| Max resolution | 3648 x 2736 | 4240 x 2832 |
| Max native ISO | 1600 | 102400 |
| Max enhanced ISO | - | 409600 |
| Min native ISO | 100 | 80 |
| RAW data | ||
| Min enhanced ISO | - | 50 |
| Autofocusing | ||
| Manual focus | ||
| AF touch | ||
| Continuous AF | ||
| Single AF | ||
| AF tracking | ||
| Selective AF | ||
| Center weighted AF | ||
| AF multi area | ||
| AF live view | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Number of focus points | 3 | 759 |
| Lens | ||
| Lens mount | Micro Four Thirds | Sony E |
| Available lenses | 45 | 121 |
| Focal length multiplier | 2.1 | 1 |
| Screen | ||
| Range of display | Fixed Type | Fully articulated |
| Display diagonal | 2.5" | 3" |
| Display resolution | 215k dot | 1,440k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentamirror) | Electronic |
| Viewfinder resolution | - | 9,440k dot |
| Viewfinder coverage | 95 percent | 100 percent |
| Viewfinder magnification | 0.46x | 0.91x |
| Features | ||
| Min shutter speed | 60 secs | 30 secs |
| Max shutter speed | 1/4000 secs | 1/8000 secs |
| Continuous shutter speed | 3.0 frames/s | 10.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | - | Yes |
| Set WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | 10.00 m (at ISO 100) | no built-in flash |
| Flash modes | Auto, Auto FP, Manual, Red-Eye | no built-in flash |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Video resolutions | - | 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 |
| Max video resolution | None | 3840x2160 |
| Video file format | - | MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 |
| Microphone input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | None | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 3.2 Gen 1 (5 GBit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 435 gr (0.96 pounds) | 699 gr (1.54 pounds) |
| Dimensions | 130 x 91 x 53mm (5.1" x 3.6" x 2.1") | 129 x 97 x 81mm (5.1" x 3.8" x 3.2") |
| DXO scores | ||
| DXO Overall score | not tested | 85 |
| DXO Color Depth score | not tested | 23.6 |
| DXO Dynamic range score | not tested | 13.3 |
| DXO Low light score | not tested | 2993 |
| Other | ||
| Battery life | - | 600 images |
| Type of battery | - | Battery Pack |
| Battery model | - | NP-FZ100 |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse feature | With downloadable app | |
| Type of storage | Compact Flash (Type I or II), xD Picture Card | Dual SD/CFexpress Type A slots |
| Storage slots | 1 | Dual |
| Retail price | $599 | $3,499 |