Nikon
D5100
 vs
Olympus OM-D
E-M5

General

 Nikon D5100 Olympus OM-D E-M5
Brand
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 Nikon Olympus
Lowest price
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 $370.00 $999.00
Announced
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 April, 2011 February, 2012

Sensor
Type
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 CMOS LIVEMOS
Size
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 APS-C 23.6x15.6mm Four thirds 17.3x13.0mm
Crop factor
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 1.5x 2.1x
Megapixels
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 16.1 MP 15.9 MP
Light sensitivity
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 6,400 ISO 25,600 ISO
Light sensitivity (boost)
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 25,600 ISO Unknown
Sensor cleaning
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 Yes Yes

Sensor (Advanced)
True resolution
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 16.1 MP 15.9 MP
Native resolution
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 4928 x 3264 4608 x 3456
Pixel size
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 22.9 µm² 14.1 µm²

Screen
Type
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 LCD OLED
Size
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 3.0" 3.0"
Resolution
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 920k dots 610k dots
Touch screen
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 No Yes
Flips out
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 Yes Yes
Live view
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 Yes Yes

Lenses
Lens availability
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 205 lenses 40 lenses
Lens mount
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 Nikon F Micro Four Thirds

Form factor
Size
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 127x96x78 mm 122x89x43 mm
Depth
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 3.1" 1.7"
Weight
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 560 g 425 g
Interchangeable lenses
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 Yes Yes
Waterproof
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 No No
Weather sealed
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 No Yes
Built-in focus motor
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 No No

Viewfinder
Type
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 Pentamirror Digital
Viewfinder size
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 0.51x 0.44x
Coverage
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 95% 100%

Movies
Format
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 1080p @ 30fps 1080p @ 60fps
Supports 24p
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 Yes No
High-speed framerate
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 None None
External mic jack
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 Yes Yes
Autofocus
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 Contrast detection Contrast detection
Continuous focus
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 Yes Yes
All formats
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 640 x 424 @ 24fps
1080p @ 30fps
720p @ 30fps
720p @ 24fps
1080p @ 24fps		 720p @ 30fps
1080p @ 60fps
720p @ 60fps
480p @ 30fps

Features
Panorama
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 No No
HDR
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 Yes No
3D
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 No Yes
Image stabilization
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 None Sensor shift
Supports RAW
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 Yes Yes
GPS
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 No No

Performance
Startup delay
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 500 ms 1100 ms
Shutter lag
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 273 ms 277 ms
Battery life
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 660 shots 500 shots
Continuous shooting
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 4 fps 9 fps

Focus system
Autofocus
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 Phase detection Contrast detection
Focus points
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 11 35
Cross type focus points
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 1 Unknown

Shutter
Max
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 1/4000s 1/4000s
Min
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 30s 60s

Flash
Built-in flash
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 Yes No
Popup
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 Yes n/a
External connection
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 Yes Yes

Storage
Storage slots
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 1 1
Supported formats
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 SDXC
SDHC
SD		 SDXC
SD
SDHC

DXO Mark Scores
Image quality
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 80.0 71.0
Color depth
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 23.5 bits 22.8 bits
Dynamic range
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 13 EV 12.3 EV
Low light performance
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 1,183 ISO 826 ISO
Nikon D5100
D5100
Nikon

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Olympus OM-D E-M5
OM-D E-M5
Olympus

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