Nikon D5100 vs Olympus E-M10 II

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Nikon D5100 vs Olympus E-M10 II

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APS-C 368.2mm²
16.2 megapixels
ISO 100 - 6400

Go in depth with our full Nikon D5100 Review.
See real-world photos taken with the D5100.

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

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

Succeeded by the Nikon D5200
Compare D5100 vs D5200

Succeeded by the Olympus E-M10 III
Compare E-M10 II vs E-M10 III

Compare NIKON D5200 vs OLYMPUS E-M10 III

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Differences

Nikon D5100 advantages over Olympus E-M10 II

Larger sensor
APS-C vs 4/3
More sensor area. Bigger is (generally) better.
Tilt-swivel screen
Tilt-swivel vs tilt-only
Tilt and swivel the screen for maximum shooting flexibility
Bigger pixels
~ 4.79 vs 3.75 microns
Better low-light and dynamic range (all else equal)
Fast startup
~0.50 vs 0.8 sec
Faster startup lets you catch the moment
Higher effective ISO

Higher effective ISO

Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

You can learn more at our glossary entry.

Maximum effective ISO test data courtesy of DxO Mark.
D5100 test data on DxO Mark E-M10 II test data on DxO Mark

1,183 vs 842 iso
Take photos in low light with less noise
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

660 vs 320 shots
Capture more photos
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Has anti-aliasing filter
Filter vs No Filter
Reduces unsightly moiré in photos
Bigger JPEG buffer
100 vs 28 shots
Take more JPEG shots before waiting (burst mode)

Olympus E-M10 II advantages over Nikon D5100

Less expensive
$550 vs $650*
Save money for lenses or accessories
Focus peaking
Peaker vs Non-peaker
Your camera will highlight what's in focus
In-Camera Image Stabilization
Yes vs No
Reduces the effects of camera shake at slower shutter speeds
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
Thinner
46 mm vs 79 mm
Thinner
Newer
9 years vs 14 years old
Newer cameras often support more advanced features
Lighter weight
488g vs 829g
Lighter weight
Less shutter lag
0.16 vs 0.27 sec
Focus and take a photo quickly (wide angle)
More viewfinder magnification
0.62x vs 0.52x
Get a bigger view of the scene through the eye-level viewfinder
Shoots 60p video
Yes vs No
A faster framerate can give you more editing options
Lacks anti-aliasing filter
No Filter vs Filter
Enjoy sharper photos
Longer exposure
60 vs 30 sec
Long exposures for night shots
Faster JPEG shooting
8.9 fps vs 3.9 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
8.9 fps vs 4.0 fps
Faster RAW shooting in burst mode
Slow-motion videos
Yes vs No
Shoot slow-motion videos
Faster shutter
1/16000 vs 1/4000 sec
Shoot wide open in bright light

Similarities

Common Strengths

Eye-level viewfinder
Both provide
You'll be able to frame photos even when the sun is out
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

In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
NFC
Neither provide
Simplifies pairing your camera with supported phones
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
Top deck display
Neither provide
Check settings with a screen on top of the camera
Dual card slots
Neither provide
Gives you more storage flexibility
Headphone jack
Neither provide
Monitor audio recording while you shoot video

User reviews

Amazon
Adorama
Read D5100 User Reviews

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Buy the Nikon D5100

Body Only

All D5100 Deals

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Buy the Olympus E-M10 II

Body Only (Black)

Body Only (Black)
Body Only (Silver)
Kit with 14-42mm EZ lens (Black)
Kit with 14-42mm EZ lens (Brown)
Kit with 14-42mm EZ lens (Silver)
Kit with 14-42mm II R lens

All E-M10 II Deals

Review Excerpt

Side-mounted tilt / swivel LCD screen; same sensor and processing as the Nikon D7000; good speed and battery life; in-camera HDR and filter effects; Full HD video capture with aperture control; audio levels control and external microphone jack.
AF-S lens mount doesn't offer autofocus with screw-drive lenses; popup flash isn't the greatest; no built-in wireless flash control; HDR function doesn't microalign source images.
Read our Nikon D5100 Full Review

Excellent value for the money; Professional-grade ergonomics; Incredibly good image quality for its class; Solid performance specs across the board; Loaded with features.
Kit lens may not be quite as sharp as previous kit lens from this line; Below average battery life; Somewhat confusing menu systems.
Read our Olympus E-M10 II Review

The Competition

Compared to Sony A55

Nikon D5100

Sony A55

$650
APS-C

Lens selection
Tilt-swivel screen

$734
APS-C

In-Camera Image Stabilization
In-camera panoramas

Compare Nikon D5100 vs Sony A55

Olympus E-M10 II

Sony A55

$349
4/3

Lens selection
Focus peaking

$734
APS-C

Larger sensor
Bigger pixels

Compare Olympus E-M10 II vs Sony A55

Compared to Sony A33

Nikon D5100

Sony A33

$650
APS-C

Lens selection
Tilt-swivel screen

$540
APS-C

In-Camera Image Stabilization
In-camera panoramas

Compare Nikon D5100 vs Sony A33

Olympus E-M10 II

Sony A33

$349
4/3

Lens selection
Focus peaking

$540
APS-C

Larger sensor
Bigger pixels

Compare Olympus E-M10 II vs Sony A33

Compared to Sony A57

Nikon D5100

Sony A57

$650
APS-C

Lens selection
Tilt-swivel screen

$800
APS-C

Focus peaking
In-Camera Image Stabilization

Compare Nikon D5100 vs Sony A57

Olympus E-M10 II

Sony A57

$349
4/3

Lens selection
Touchscreen

$800
APS-C

Larger sensor
Bigger pixels

Compare Olympus E-M10 II vs Sony A57

Compared to Olympus E-M10

Nikon D5100

Olympus E-M10

$650
APS-C

Larger sensor
Tilt-swivel screen

$399
4/3

Focus peaking
In-Camera Image Stabilization

Compare Nikon D5100 vs Olympus E-M10

Olympus E-M10 II

Olympus E-M10

$349
4/3

Fast startup
Shoots 24p video

$399
4/3

Compare Olympus E-M10 II vs Olympus E-M10

Compared to Panasonic GX85

Nikon D5100

Panasonic GX85

$650
APS-C

Larger sensor
Tilt-swivel screen

$598
4/3

Focus peaking
In-Camera Image Stabilization

Compare Nikon D5100 vs Panasonic GX85

Olympus E-M10 II

Panasonic GX85

$349
4/3

Higher effective ISO
More telephoto lens reach

$598
4/3

Shoot 4K video
In-camera panoramas

Compare Olympus E-M10 II vs Panasonic GX85

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