Olympus E-M1 vs Sony A7S
Portability
71 Imaging
53 Features
85 Overall
65
71 Imaging
53 Features
85 Overall
65
Portability
77 Imaging
60 Features
73 Overall
65
77 Imaging
60 Features
73 Overall
65
Olympus E-M1 vs Sony A7S Key Specs
Olympus E-M1
(Full Review)
(Full Review)
- 16MP - Four Thirds Sensor
- 3" Tilting Screen
- ISO 100 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 1920 x 1080 video
- Micro Four Thirds Mount
- 497g - 130 x 94 x 63mm
- Announced October 2013
- Later Model is Olympus E-M1 II
Sony A7S
(Full Review)
(Full Review)
- 12MP - Full frame Sensor
- 3" Tilting Screen
- ISO 100 - 409600
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 489g - 127 x 94 x 48mm
- Released April 2014
- Newer Model is Sony A7S II
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Below is a extensive overview of the Olympus E-M1 and Sony A7S, both Pro Mirrorless digital cameras by brands Olympus and Sony. There exists a crucial gap between the sensor resolutions of the E-M1 (16MP) and A7S (12MP) and the E-M1 (Four Thirds) and A7S (Full frame) feature different sensor dimensions.
President Biden pushes bill mandating TikTok sale or banThe E-M1 was brought out 5 months prior to the A7S and they are both of a similar generation. Each of the cameras offer the identical body type (SLR-style mirrorless).
Before going in to a step-by-step comparison, below is a brief synopsis of how the E-M1 scores against the A7S when it comes to portability, imaging, features and an overall grade.
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Following is a preview of the gallery images for Olympus OM-D E-M1 and Sony Alpha A7S. The entire galleries are viewable at Olympus E-M1 Gallery and Sony A7S Gallery.
Reasons to pick Olympus E-M1 over the Sony A7S
| E-M1 | A7S | |||
|---|---|---|---|---|
| Touch friendly screen |  | Quickly navigate |
Reasons to pick Sony A7S over the Olympus E-M1
| A7S | E-M1 | |||
|---|---|---|---|---|
| Screen resolution | 1230k |  | 1037k | Crisper screen (+193k dot) |
Common features in the Olympus E-M1 and Sony A7S
| E-M1 | A7S | |||
|---|---|---|---|---|
| Released | October 2013 |  | April 2014 | Similar generation |
| Manually focus |  | More accurate focusing | ||
| Screen type | Tilting |  | Tilting | Tilting screen |
| Screen sizing | 3" |  | 3" | Equivalent screen sizing |
| Selfie screen |  | Absent selfie screen |
Olympus E-M1 vs Sony A7S Physical Comparison
If you are aiming to lug around your camera, you need to factor in its weight and volume. The Olympus E-M1 offers physical measurements of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") with a weight of 497 grams (1.10 lbs) and the Sony A7S has sizing of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") along with a weight of 489 grams (1.08 lbs).
Take a look at the Olympus E-M1 and Sony A7S in the latest Camera and Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising at the time. Here is the front view overall size comparison of the E-M1 versus the A7S.
Using dimensions and weight, the portability score of the E-M1 and A7S is 71 and 77 respectively.
Olympus E-M1 vs Sony A7S Sensor Comparison
Quite often, it is difficult to picture the contrast between sensor measurements merely by checking specs. The photograph here will provide you a better sense of the sensor measurements in the E-M1 and A7S.
As you can plainly see, the 2 cameras enjoy different resolutions and different sensor measurements. The E-M1 because of its tinier sensor is going to make getting shallow DOF harder and the Olympus E-M1 will give you greater detail having its extra 4MP. Higher resolution will also make it easier to crop shots far more aggressively.
Olympus E-M1 vs Sony A7S Screen and ViewFinder
Photography Glossary Photography Type Scores
Portrait Comparison
Olympus E-M1 Portrait photography features
Sony A7S Portrait photography features
you can focus manually
high flash sync (1/320s)
MP count decent (16 megapixels)
decent sensor size (Four Thirds)
comes with face detection focusing
saves RAW formats
focusing manually
great sensor size (Full frame)
comes with face detection focus
exports RAW formats
megapixel count low (12MP)
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Olympus E-M1 as a Street photography camera
Sony A7S as a Street photography camera
screen tilts up and down
image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
saves RAW formats
features touch to focus
weather sealing
lighter than competition (497g)
very good high ISO (25,600)
has a tilting screen
great sensor size (Full frame)
exports RAW formats
weather sealing
lighter than competition in class (489g)
very good high ISO (409,600)
lack of image stabilization
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Olympus E-M1 Sports photography information
Sony A7S Sports photography information
great max shutter speed (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
MP count decent (16MP)
decent sensor size (Four Thirds)
comes with tracking autofocus
weather sealing
supports phase detect AF
not so great battery (350 shots)
high shutter speed (1/8,000 seconds)
great sensor size (Full frame)
comes with tracking autofocus
weather sealing
very slow continuous shooting (5.0 frames/s)
lack of image stabilization
megapixel count low (12 megapixels)
terrible battery power (360 per charge)
lack of phase detect auto focus
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Travel photography with Olympus E-M1
Travel photography with Sony A7S
lighter than competition (497g)
weather sealing
features touch to focus
MP count decent (16MP)
not so great battery (350 per charge)
screen is not selfie friendly
lighter than competition in class (489 grams)
weather sealing
terrible battery power (360 per charge)
megapixel count low (12 megapixels)
doesn't feature selfie friendly screen
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Olympus E-M1 Landscape photography advice
Sony A7S Landscape photography advice
you can focus manually
swap lenses (Micro Four Thirds mount)
screen is a decent size (3")
image stabilization (Sensor based 5-axis)
MP count decent (16 megapixels)
decent sensor size (Four Thirds)
very good high ISO (25,600)
saves RAW formats
weather sealing
not so great battery (350 per charge)
focusing manually
change lenses (Sony E mount)
nice screen size (3")
great sensor size (Full frame)
very good high ISO (409,600)
exports RAW formats
weather sealing
lack of image stabilization
megapixel count low (12MP)
terrible battery power (360 shots)
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Olympus E-M1 Vlogging details
Sony A7S Vlogging details
touchscreen capability
image stabilization (Sensor based 5-axis)
comes with face detection focusing
high res video (1920 x 1080 pixels)
comes with external microphone port
lighter than competition (497g)
screen is not selfie friendly
comes with face detection focus
video resolution high (3840 x 2160 pixels)
comes with external microphone port
lighter than competition in class (489 grams)
doesn't feature selfie friendly screen
lack of image stabilization
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Olympus E-M1 vs Sony A7S Specifications
| Olympus OM-D E-M1 | Sony Alpha A7S | |
|---|---|---|
| General Information | ||
| Company | Olympus | Sony |
| Model type | Olympus OM-D E-M1 | Sony Alpha A7S |
| Type | Pro Mirrorless | Pro Mirrorless |
| Announced | 2013-10-28 | 2014-04-06 |
| Body design | SLR-style mirrorless | SLR-style mirrorless |
| Sensor Information | ||
| Powered by | TruePIC VII | Bionz X |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | Full frame |
| Sensor measurements | 17.3 x 13mm | 35.8 x 23.9mm |
| Sensor surface area | 224.9mm² | 855.6mm² |
| Sensor resolution | 16 megapixel | 12 megapixel |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Highest resolution | 4608 x 3456 | 4240 x 2832 |
| Highest native ISO | 25600 | 409600 |
| Minimum native ISO | 100 | 100 |
| RAW data | ||
| Autofocusing | ||
| Manual focusing | ||
| AF touch | ||
| Continuous AF | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| Center weighted AF | ||
| AF multi area | ||
| Live view AF | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Total focus points | 81 | 25 |
| Lens | ||
| Lens support | Micro Four Thirds | Sony E |
| Number of lenses | 107 | 121 |
| Crop factor | 2.1 | 1 |
| Screen | ||
| Range of screen | Tilting | Tilting |
| Screen diagonal | 3 inches | 3 inches |
| Screen resolution | 1,037 thousand dot | 1,230 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch friendly | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Electronic |
| Viewfinder resolution | 2,360 thousand dot | 2,359 thousand dot |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.74x | 0.71x |
| Features | ||
| Lowest shutter speed | 60 seconds | 30 seconds |
| Highest shutter speed | 1/8000 seconds | 1/8000 seconds |
| Continuous shooting speed | 10.0 frames/s | 5.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Set WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash modes | Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync (1st curtain), Slow sync (2nd curtain), Manual | no built-in flash |
| Hot shoe | ||
| AE bracketing | ||
| White balance bracketing | ||
| Highest flash sync | 1/320 seconds | - |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) | 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 | 1920x1080 | 3840x2160 |
| Video data format | H.264, Motion JPEG | MPEG-4, AVCHD, XAVC |
| Microphone 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 | 497g (1.10 pounds) | 489g (1.08 pounds) |
| Dimensions | 130 x 94 x 63mm (5.1" x 3.7" x 2.5") | 127 x 94 x 48mm (5.0" x 3.7" x 1.9") |
| DXO scores | ||
| DXO All around rating | 73 | 87 |
| DXO Color Depth rating | 23.0 | 23.9 |
| DXO Dynamic range rating | 12.7 | 13.2 |
| DXO Low light rating | 757 | 3702 |
| Other | ||
| Battery life | 350 photos | 360 photos |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | BLN-1 | NP-FW50 |
| Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse feature | With downloadable app | |
| Storage media | SD/SDHC/SDXC | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Storage slots | One | One |
| Cost at launch | $799 | $1,998 |