General

Canon Rebel T3i Nikon D5100
Brand
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Canon Nikon
Lowest price
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$199.95 $378.00
Announced
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February, 2011 April, 2011

Sensor

Type
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CMOS CMOS
Size
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APS-C 22.3x14.9mm APS-C 23.6x15.6mm
Crop factor
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1.6x 1.5x
Megapixels
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17.9 MP 16.1 MP
Light sensitivity
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6,400 ISO 6,400 ISO
Light sensitivity (boost)
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12,800 ISO 25,600 ISO
Sensor cleaning
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Yes Yes

Sensor (Advanced)

True resolution
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17.9 MP 16.1 MP
Native resolution
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5184 x 3456 4928 x 3264
Pixel size
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18.5 µm² 22.9 µm²

Screen

Type
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LCD LCD
Size
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3.0" 3.0"
Resolution
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1,040k dots 920k dots
Touch screen
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No No
Flips out
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Yes Yes
Live view
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Yes Yes

Lenses

Lens availability
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197 lenses 205 lenses
Lens mount
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Canon EF Nikon F

Form factor

Size
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133x99x79 mm 127x96x78 mm
Depth
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3.1" 3.1"
Weight
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570 g 560 g
Interchangeable lenses
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Yes Yes
Waterproof
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No No
Weather sealed
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No No
Built-in focus motor
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No No

Viewfinder

Type
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Pentamirror Pentamirror
Viewfinder size
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0.53x 0.51x
Coverage
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95% 95%

Movies

Format
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1080p @ 30fps 1080p @ 30fps
Supports 24p
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Yes Yes
High-speed framerate
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None None
External mic jack
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Yes Yes
Autofocus
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None Contrast detection
Continuous focus
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n/a Yes
All formats
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1080p @ 25fps
720p @ 30fps
720p @ 60fps
1080p @ 30fps
480p @ 60fps
1080p @ 24fps
720p @ 50fps
480p @ 30fps
480p @ 50fps
720p @ 24fps
1080p @ 30fps
640 x 424 @ 24fps
1080p @ 24fps
720p @ 30fps

Features

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

Performance

Startup delay
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1500 ms 500 ms
Shutter lag
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283 ms 273 ms
Battery life
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440 shots 660 shots
Continuous shooting
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3.7 fps 4 fps

Focus system

Autofocus
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Phase detection Phase detection
Focus points
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9 11
Cross type focus points
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1 1

Shutter

Max
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1/4000s 1/4000s
Min
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30s 30s

Flash

Built-in flash
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Yes Yes
Popup
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Yes Yes
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
SDHC
SDXC
SD

DXO Mark Scores

Image quality
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65.0 80.0
Color depth
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22.1 bits 23.5 bits
Dynamic range
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11.5 EV 13 EV
Low light performance
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793 ISO 1,183 ISO
Canon Rebel T3i
Rebel T3i
Canon

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Nikon D5100
D5100
Nikon

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