Olympus E-M10 vs Sony A77 II

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Olympus E-M10 vs Sony A77 II

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4/3 224.9mm²
16.1 megapixels
ISO 200 - 25,600

Go in depth with our full Olympus E-M10 Review.
How does it shoot? Olympus E-M10 in the real world.
See real-world photos taken with the E-M10.
Compare Olympus E-M10 image quality against competitors.
What’s the bottom line? Read our Olympus E-M10 conclusion.

APS-C 366.6mm²
24.3 megapixels
ISO 100 - 25,600

Go in depth with our full Sony A77 II Review.
How does it shoot? Sony A77 II in the real world.
See real-world photos taken with the A77 II.
Compare Sony A77 II image quality against competitors.
What’s the bottom line? Read our Sony A77 II conclusion.

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Differences

Olympus E-M10 advantages over Sony A77 II

Lens selection
Excellent vs Good
Better lens selection gives you more options
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Thinner
45 mm vs 80 mm
Thinner
Lighter weight
515g vs 1351g
Lighter weight
Lacks anti-aliasing filter
No Filter vs Filter
Enjoy sharper photos
Longer exposure
60 vs 30 sec
Long exposures for night shots

Sony A77 II advantages over Olympus E-M10

Tilt-swivel screen
Tilt-swivel vs tilt-only
Tilt and swivel the screen for maximum shooting flexibility
Larger sensor
APS-C vs 4/3
More sensor area. Bigger is (generally) better.
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
Fast startup
~0.80 vs 1.3 sec
Faster startup lets you catch the moment
NFC
Yes vs No
Simplifies pairing your camera with supported phones
Longer stills battery life
More info

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

480 vs 320 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Shoots 24p video
Yes vs No
Gives your movies a big-screen feel
Less shutter lag
0.09 vs 0.23 sec
Focus and take a photo quickly (wide angle)
More viewfinder magnification
0.73x vs 0.58x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
24.3 vs 16.1 megapixels
Higher resolution photos
Shoots 60p video
Yes vs No
A faster framerate can give you more editing options
Has anti-aliasing filter
Filter vs No Filter
Reduces unsightly moiré in photos
Wider angle kit lens
24 mm vs 28 mm
Capture more of the scene with the included lens
Faster JPEG shooting
11.5 fps vs 8.1 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
12.0 fps vs 8.1 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
28 vs 15 shots
Larger buffer for RAW shots (burst mode)
Faster shutter
1/8000 vs 1/4000 sec
Shoot wide open in bright light
Higher extended ISO
51200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Focus peaking
Both provide
Your camera will highlight what's in focus
Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
Built-in Wi-Fi
Both provide
Share your photos wirelessly
Internal flash
Both provide
Useful in a pinch for fill flash
HDMI out
Both provide
Use HDMI output to monitor or review video
Hot shoe
Both provide
Off-camera flashes open new possibilities
Bulb shutter
Both provide
Hold the shutter open manually for long exposures

Common Weaknesses

Built-in Bluetooth
Neither provide
Always-on wireless connectivity
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Dual card slots
Neither provide
Gives you more storage flexibility
Headphone jack
Neither provide
Monitor audio recording while you shoot video
Slow-motion videos
Neither provide
Shoot slow-motion videos

User reviews

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Adorama
Read E-M10 User Reviews

Amazon
Adorama
Read A77 II User Reviews

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Buy the Olympus E-M10

Body Only

Body Only
Kit with 14-42mm Lens

All E-M10 Deals

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Buy the Sony A77 II

Body Only

Body Only
Kit with 16-50mm Lens

All A77 II Deals

Review Excerpt

Great image quality especially from RAW files; Excellent dynamic range for a Four Thirds sensor; Very good high ISO performance; Realistic colors and excellent hue accuracy; Built-in Wi-Fi with remote control and sharing features; Improved HD video; Lightweight and very portable; Built-in pop-up flash; Minimal EVF lag time.
Contrast-Detect AF struggles with small and low-contrast subjects; Mediocre battery life; No external microphone or headphone jack; Mediocre burst speed with continuous AF; No weather sealing; Heavy-handed high ISO noise reduction.
Read our Olympus E-M10 Review

Excellent image quality, especially lower ISOs; Improved high ISO performance when using RAW; Very good dynamic range; High-resolution images; Very fast single-shot autofocus; 12fps burst mode with C-AF; Good value for its class.
Lackluster continuous AF performance; Strong NR processing in high ISO JPEGs; Sluggish buffer clearing; Short battery life compared to most DSLRs; Joystick control easy to press accidentally.
Read our Sony A77 II Review

The Competition

Compared to Panasonic GX7

Olympus E-M10

Panasonic GX7

$399
4/3

Less expensive
Higher effective ISO

$648
4/3

In-camera panoramas
Fast startup

Compare Olympus E-M10 vs Panasonic GX7

Sony A77 II

Panasonic GX7

$1198
APS-C

Tilt-swivel screen
Larger sensor

$648
4/3

Lens selection
Touchscreen

Compare Sony A77 II vs Panasonic GX7

Compared to Canon 7D Mark II

Olympus E-M10

Canon 7D Mark II

$399
4/3

Focus peaking
In-Camera Image Stabilization

$1597
APS-C

Larger sensor
Fast startup

Compare Olympus E-M10 vs Canon 7D Mark II

Sony A77 II

Canon 7D Mark II

$1198
APS-C

Focus peaking
Tilt-swivel screen

$1597
APS-C

Lens selection
Fast startup

Compare Sony A77 II vs Canon 7D Mark II

Compared to Nikon D7200

Olympus E-M10

Nikon D7200

$399
4/3

Focus peaking
In-Camera Image Stabilization

$1016
APS-C

Larger sensor
Fast startup

Compare Olympus E-M10 vs Nikon D7200

Sony A77 II

Nikon D7200

$1198
APS-C

Tilt-swivel screen
Focus peaking

$1016
APS-C

Lens selection
Less expensive

Compare Sony A77 II vs Nikon D7200

Compared to Olympus E-M10 II

Olympus E-M10

Olympus E-M10 II

$399
4/3

$349
4/3

Fast startup
Shoots 24p video

Compare Olympus E-M10 vs Olympus E-M10 II

Sony A77 II

Olympus E-M10 II

$1198
APS-C

Larger sensor
Tilt-swivel screen

$349
4/3

Lens selection
Less expensive

Compare Sony A77 II vs Olympus E-M10 II

Compared to Panasonic GX85

Olympus E-M10

Panasonic GX85

$399
4/3

Higher effective ISO
More telephoto lens reach

$598
4/3

Shoot 4K video
In-camera panoramas

Compare Olympus E-M10 vs Panasonic GX85

Sony A77 II

Panasonic GX85

$1198
APS-C

Tilt-swivel screen
Larger sensor

$598
4/3

Lens selection
Less expensive

Compare Sony A77 II vs Panasonic GX85

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