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Compare 4 products

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Nikon D3100 Digital Camera
Nikon D3100
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Nikon D40 Digital Camera
Nikon D40
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Nikon D5100 Digital Camera
Nikon D5100
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Sony SLT-A55 Digital Camera
Sony SLT-A55
Available colors
Editiorial reviews
33
4.0 out of 5
19 user ratings
5 stars
47 %
4 stars
36 %
3 stars
5 %
2 stars
10 %
1 stars
0 %
Read editorial reviews
25
4.1 out of 5
10 user ratings
5 stars
30 %
4 stars
60 %
3 stars
0 %
2 stars
10 %
1 stars
0 %
Read editorial reviews
34
4.1 out of 5
17 user ratings
5 stars
41 %
4 stars
41 %
3 stars
11 %
2 stars
5 %
1 stars
0 %
Read editorial reviews
20
4.0 out of 5
12 user ratings
5 stars
50 %
4 stars
25 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
72
3.8 out of 5
72 user ratings
5 stars
34 %
4 stars
23 %
3 stars
26 %
2 stars
15 %
1 stars
0 %
42
4.3 out of 5
42 user ratings
5 stars
50 %
4 stars
30 %
3 stars
19 %
2 stars
0 %
1 stars
0 %
51
3.9 out of 5
51 user ratings
5 stars
37 %
4 stars
29 %
3 stars
23 %
2 stars
7 %
1 stars
1 %
46
4.1 out of 5
46 user ratings
5 stars
39 %
4 stars
34 %
3 stars
23 %
2 stars
2 %
1 stars
0 %

Sensor

Sensor typeCMOSCCDCMOSCMOS
Image sensor formatDXDXDXAPS-C
Sensor size0.91 in0.93 in0.93 in0.93 in
Sensor photo detectors15.0 Mpx6.0 Mpx
N/A
17.0 Mpx
Effective pixels14.0 Mpx6.0 Mpx16.0 Mpx16.0 Mpx
Image ratio w:h3:23:23:2
  • 3:2
  • 16:9
Max resolution4608 x 3072 px3008 x 2000 px4928 x 3264 px4912 x 3264 px
Other resolutions
  • 3456x2304
  • 2304x1536
  • 2256x1496
  • 1504x1000
  • 3696x2448
  • 2464x1632
  • 3568x2368
  • 2448x1624
  • 2448x1376
ProcessorExpeed 2
N/A
Expeed 2BIONZ

Image

ISO
  • 100
  • 200
  • 400
  • 800
  • 1600
  • 3200
  • Auto
  • 200
  • 1600
  • 100
  • 6400
  • 12800
  • 25600
  • 100
  • 125
  • 160
  • 200
  • 250
  • 320
  • 400
  • 500
  • 640
  • 800
  • 1000
  • 1250
  • 1600
  • 2000
  • 2250
  • 3200
  • 6400
  • Auto
ISO Autoyesyesyesyes
ISO minimum100200100100
ISO maximum1280016002560012800
Boosted ISO maximum1280032002560025600
Maximum image resolution4608 x 3072 px3008 x 2000 px4928 x 3264 px4592 x 3056 px
White balance presets126126
White balance modes
  • Auto
  • Manual
Auto
  • Auto
  • Cloudy
  • Direct sunlight
  • Flash
  • Fluorescent
  • Incandescent
  • Manual
  • Shade
  • Auto
  • Cloudy
  • Custom modes
  • Daylight
  • Flash
  • Fluorescent
  • Incandescent
  • Shade
Custom white balanceyesyesyesyes
Supported image file formats
  • JPG
  • RAW
  • JPEG XR
  • RAW
  • JPG
  • RAW
JPG
Photo effectsBlack&White
  • Black&White
  • Vivid
  • Black&White
  • Neutral
  • Vivid
  • Black&White
  • Vivid
Image stabilizernononono
Image stabilization typeNoNoNoSensor-shift
Supported aspect ratios16:9
N/A
16:916:9
Uncompressed formatRAWRAWRAWRAW
AEB/HDR supportnonoyesyes
HDR
N/A
N/A
yesyes

Optics and focus

Lens mountNikon-AFNikon FNikon F
  • Sony Alpha DT
  • Sony Alpha
Optical zoom3.0 x3.0 x3.0 x
N/A
Magnification (Crop factor)1.5 x1.5 x1.5 x1.5 x
Minimum aperture3.5
N/A
N/A
N/A
Maximum aperture3.5222.8
N/A
AF assist (auto-focus assist light)LampLampLampLamp
Focus adjustmentAuto
N/A
AutoAuto
Contrast autofocusyesnoyesno
Brightness adjustmentyes
N/A
yes
N/A
Autofocus in recording modeyes
N/A
yesyes
Focal length multiplier1.5x1.5x1.5x1.5x
AutofocusSingle Auto Focus
  • Selective single-point
  • Single
  • Continuous Auto Focus
  • Servo Auto Focus
  • Single Auto Focus
  • Continuous Auto Focus
  • Single Auto Focus
Auto Focus (AF) lockyesyesyesyes
Manual focusyesyesyesyes
Auto Focus (AF) points selection
  • Auto
  • Manual
  • Auto
  • Manual
Auto
N/A
Auto Focus (AF) assist beamyes
N/A
yesyes
Number of focus points1131115
Max number of AF points (incl. assistant)1131115
Image stabiliserLens based onlyLens based onlyLens based onlyBuilt-in
Filter diameter2.05 in2.05 in2.83 in2.17 in
Phase detection autofocusyesyesyesyes
Digital zoom
N/A
3.0 x
N/A
N/A

Screen and viewfinder

Screen size3.0 in2.5 in3.0 in3.0 in
Articulated LCDnonoyesyes
Screen technologyLCDLCDLCDLCD
Screen dots230000230000921000921000
Touch screennononono
Field of view95.0 %
N/A
100.0 %100.0 %
Live viewyesnoyesyes
ViewfinderOpticalElectronicOpticalElectronic
Viewfinder coverage95.0 %95.0 %95.0 %100.0 %
Viewfinder magnification0.8 x0.8 x0.78 x1.1 x
Dioptre correctionyes
N/A
yes
N/A
Diopter adjustment (D-D)-1.7 - 0.51.7 - 0.51.7 - 0.7
N/A
Eye relief0.71 in0.71 in0.7 in
N/A
Separate info displaynononono
Flip-out screenno
N/A
N/A
N/A
Viewfinder resolution
N/A
N/A
N/A
1150000.0 px

Photography features

Shooting modes
  • Auto
  • Manual
  • Movie
N/A
  • Aperture priority
  • Auto
  • Manual
  • Movie
  • Program
  • Scene
  • Shutter priority
N/A
Camera shutter type
  • Electronic
  • Mechanical
N/A
ElectronicElectronic
Minimum shutter speed30.0 s30.0 s30.0 s30.0 s
Maximum shutter speed1.0 s1.0 s1.0 s1.0 s
Shutter priorityyesyesyesyes
Aperture priorityyesyesyesyes
Manual exposure modeyes
N/A
yesyes
Exposure compensation plus5552
Exposure compensation minus-5-5-5-2
Expousure compensation steps1/31/3
  • 1/3
  • 1/2
1/3
Auto exposure lockyesyesyesyes
Continuous shootingyesyesyesyes
Self-timer delay10.0 s
  • 2
  • 5
  • 10
  • 20
  • 2
  • 5
  • 10
  • 20
  • 2
  • 10
Histogramyes
N/A
yesyes
WB BracketingNo
N/A
Yes
Yes
Subject / scene modesyes
N/A
yesyes
Flash sync speed1/200s1/500s1/200s1/160s
Built-in flashyesyesyesyes
Flash range12171210
Flash modes
  • Auto
  • Flash OFF
  • Redeye Reduction
  • Slow Sync
  • Auto
  • Redeye Reduction
  • Flash OFF
  • Redeye Reduction
  • Slow Sync
  • Auto
  • Fill-in
  • Flash OFF
  • Redeye Reduction
  • Slow Sync
External flash connectionHot shoeHot shoeHot shoeHot shoe
Flash metering systemi-TTL
N/A
N/A
N/A
External flashyesyesyesyes
Continuous drive3.0 fps2.5 fps4.0 fps10.0 fps
Scene modes
  • Children
  • Close-up
  • Portrait
  • Children
  • Close-up
  • Portrait
  • Sports
  • Landscape
  • Backlight
  • Beach
  • Candlelight
  • Children
  • Close-up
  • Dawn
  • Dusk
  • Food
  • Landscape
  • Night landscape
  • Night portrait
  • Party
  • Pet
  • Portrait
  • Snow
  • Sports
  • Sunset
  • Panorama
  • Portrait
  • Sunset
  • Landscape
Self-timeryesyesyesyes
Metering modes
  • Multi
  • Center-weighted
  • Average
N/A
  • Multi
  • Center-weighted
  • Spot
  • Multi
  • Center-weighted
  • Spot
Manual settingsyesyesyesyes
Speed (JPEG)3.0 fps2.5 fps4.0 fps10.0 fps
Speed (RAW)3.0 fps2.6 fps4.0 fps10.0 fps
Self-timer options
N/A
custom
  • 2
  • 5
  • 10
  • 20
  • 2
  • 10
Number of exposures
N/A
N/A
33
AE EV steps
N/A
N/A
  • 1/3
  • 1/2
  • 1/3
  • 2/3
AE frames
N/A
N/A
33
Exposure bracketing
N/A
N/A
0.3 - 0.5±EV0.3 - 0.7±EV
3D support
N/A
N/A
N/A
yes

Videography features

Maximum resolution1920 x 1080 px
N/A
1920 x 1080 px1920 x 1080 px
Video recordingyesyesyesyes
Recording resolutions1280.0 px
N/A
  • 640 x 424
  • 1280 x 720
  • 1920 x 1080
  • 640 x 480
  • 1440 x 1080
  • 1920 x 1080
HD typeFull HDNot supportedFull HDFull HD
Supported video file formats
  • AVC
  • H.264
  • MOV
  • MPEG-4
N/A
  • H.264
  • MOV
  • MPEG-4
  • AVCHD
  • H.264
  • MPEG-4
Analog signal format system
  • NTSC
  • PAL
N/A
NTSC
N/A
Camera playback
  • Highlights
  • Movie
  • Single image
  • Slide show
  • Thumbnails
N/A
  • Highlights
  • Movie
  • Single image
  • Slide show
  • Thumbnails
  • Movie
  • Single image
Max resolution (highest frame rate)1280 x 720
N/A
1920 x 10801920 x 1080
Max frame rate (highest resolution)24.0 fps
N/A
30.0 fps50.0 fps
Max frame rate (regardless of res.)30.0 fps
N/A
30.0 fps50.0 fps
Motion JPEG frame rate30.0 fps
N/A
30.0 fps25.0 fps

Design

Body typeSLRSLRSLRCompact
Body materialPlasticPlasticPlasticPlastic
Colour of product
  • Black
  • Red
  • Black
  • Silver
BlackBlack
Anti-dust systemyesnoyesyes
Environmentally sealednononono

Dimensions

Weight16.05 oz16.76 oz17.99 oz21.13 oz
Width4.88 in4.96 in5.0 in5.39 in
Height2.93 in3.7 in3.8 in4.09 in
Depth3.78 in2.52 in3.1 in3.31 in

Storage

Internal storage4098.0 mB
N/A
4098.0 mB
N/A
Compatible memory cards
  • SD
  • SDHC
  • SDXC
SD
  • SD
  • SDHC
  • SDXC
  • MS Pro Duo
  • MS Pro-HG
  • SD
  • SDHC
  • SDXC
Maximum memory card size64.0 GB
N/A
N/A
N/A
Dual memory card slotsyes
N/A
yesyes
Memory slots1
N/A
12
Storage types
  • SD
  • SDHC
  • SDXC
  • SD
  • SDHC
  • SD
  • SDHC
  • SDXC
  • SD
  • SDHC
  • SDXC
  • Memory Stick Pro Duo
  • Memory Stick Pro-HG Duo
Camera file system
  • DCF 2.0
  • DPOF 1.1
  • Exif 2.21
  • DCF
  • DCF 2.0
  • Exif 2.21
  • DCF 2.0
  • DPOF
  • Exif 2.3
DPOF 1.1

Power

Power source type
  • AC
  • Battery
BatteryBatteryBattery
Battery life (CIPA)550470660480
Battery technology
Lithium-Ion
Lithium-Ion
Lithium-Ion
Lithium-Ion
Number of batteries supported1111
AC adapter includedyes
N/A
yesyes
Battery level indicator
N/A
N/A
yes
N/A
Battery capacity
N/A
N/A
N/A
1080.0 mAh

Connectivity

HDMIyesnoyesyes
HDMI ports quantity1
N/A
11
HDMI connector typeMini
N/A
Mini
N/A
USB portyes
N/A
N/A
N/A
USB version2.02.02.02.0
Microphone portyes
N/A
yes
N/A
WirelessEye-Fi Connected
N/A
Eye-Fi ConnectedEye-Fi Connected
DC-in jackyesyesyesyes
Remote controlyesyesyesyes
PictBridgeyes
N/A
yesno
NFCnononono
Wireless network (Wi-Fi)nonoyesno
Bluetoothno
N/A
nono
Firewirenononono

Other features

GPSyesnonoyes
Orientation sensoryesyesyesyes
Calendaryes
N/A
yesyes
Energy Star certifiedno
N/A
nono
Languages support
  • CHI
  • CHI
  • CZE
  • DAN
  • DEU
  • DUT
  • ENG
  • ESP
  • FIN
  • FRE
  • ITA
  • JPN
  • KOR
  • NOR
  • POL
  • POR
  • RUS
  • SWE
  • TUR
  • CHI
  • CHI
  • DEU
  • DUT
  • ENG
  • FIN
  • FRE
  • ITA
  • JPN
  • KOR
  • POL
  • POR
  • RUS
  • SWE
Multi
N/A
Tripod mounting supportedyes
N/A
yes
N/A
Tripod thread1.0 in
N/A
N/A
N/A
On Screen Display (OSD) languages
  • CHI
  • CZE
  • DAN
  • DEU
  • DUT
  • ENG
  • ESP
  • FIN
  • FRE
  • ITA
  • JPN
  • KOR
  • NOR
  • POL
  • POR
  • RUS
  • SWE
  • TUR
N/A
  • ARA
  • CHI
  • CHI
  • CZE
  • DAN
  • DEU
  • DUT
  • ENG
  • ESP
  • FIN
  • FRE
  • IND
  • ITA
  • JPN
  • KOR
  • NOR
  • POL
  • POR
  • RUS
  • SWE
  • THA
  • TUR
  • CZE
  • DAN
  • DEU
  • DUT
  • ENG
  • ESP
  • FIN
  • FRE
  • GRE
  • HUN
  • ITA
  • NOR
  • POL
  • POR
  • RUS
  • SWE
  • TUR
Image editing modes
  • Rotating
  • Trimming
N/A
  • Resizing
  • Trimming
N/A
Timelapse recording
N/A
yesyes
N/A
Frame
N/A
N/A
yes
N/A
Date imprinting
N/A
N/A
N/A
yes

Often compared with Nikon D3100

Often compared with Nikon D40

Often compared with Nikon D5100