• 1/2.33 inch 28.2mm2
  • 10.1 megapixels
  • 32.00mm - 96.00mm (35mm eq.)
  • APS-C 355.7mm2
  • 14.2 megapixels
  • ISO 100 - 3200
  • Detailed specifications
  • Pentax Optio E70
  • Nikon D3100
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Nikon D3100 webpage
Predecessor:    
Successor:   Nikon D3200
D3100 vs D3200
General
Model Number: E70 D3100
Alternate Model Number(s):    
Camera Format: Ultra Compact SLR
Currently Manufactured: No No
Retail Price: $139.95 $699.95
Street Price: $139.95  
Date Available: 2009-02-15 2010-09-15
Tripod Mount: Yes Yes
Weight: 5.6 oz (160 g)
includes batteries 		27.4 oz (777 g)
includes batteries, kit lens
Size: 3.8 x 2.1 x 0.9 in.
(97 x 54 x 22 mm) 		4.9 x 3.8 x 2.9 in.
(125 x 97 x 74 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:    
Effective Megapixels: 10.1 14.2
Sensor Format: 1/2.33 inch APS-C
Sensor size: 28.198mm2 (6.13mm x 4.6mm) 355.74mm2 (23.10mm x 15.40mm)
Approximate Pixel Pitch: 1.68 microns 5.01 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score:   67
DxO Color Depth Score (bits):   22.5
DxO Dynamic Range Score (evs):   11.3
DxO Maximum Effective ISO Score (iso):   919
Image Capture
Image Resolution: 3648 x 2736 (10.0 MP, 4:3),
3072 x 2304 (7.1 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		4608 x 3072 (14.2 MP, 3:2),
3456 x 2304 (8.0 MP, 3:2),
2304 x 1536 (3.5 MP, 3:2)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF 2.21), RAW (12-bit .NEF), RAW+JPEG
Continuous-mode frames/second: n/a 2.9
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30/​15)
320x240 (30/​15) 		1920x1080 (24)
1280x720 (30/​25/​24)
640x424 (24)
Movie File Format: AVI (Motion JPEG) MOV H.264/MPEG-4
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Nikon F
Lens: Pentax zoom lens, 6 elements, 5 groups (4 aspherical elements) Nikkor AF-S DX 18-55mm f/3.5-5.6G VR
Focal Length (35mm equivalent): 32 - 96mm 27 - 83mm
Focal Length (actual): 6.3 - 18.9mm 18 - 55mm
Zoom Ratio: 3.00x 3.00x
Aperture Range:   f/3.5 - 22 (W), f/5.6 - 38 (T)
Integrated ND Filter: No No
Normal Focus Range: 40 cm to Infinity
15.7 in to Infinity 		28 cm to Infinity
11.0 in to Infinity
Macro Focus Range: 10 - 100 cm
3.9 - 39.4 in 		 
Filter Thread: n/a 52.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes No
Digital Zoom Values: n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL contrast detection, Spot AF, Auto Tracking AF Nikon Multi-CAM 1000 11-Area Phase Detection, 1 cross-type, 9 line-type
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: LCD Optical / LCD
Viewfinder Type:   SLR type; eye-level pentamirror, 95% coverage, 0.80x mag., 18mm eyepoint, -1.7 to +0.5 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.53x
Viewfinder Magnification (nominal/claimed):   0.80x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.4 3.0
Rear Display Resolution: 112,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 10.0x 27.0x
Top Deck Display: No
Exposure
Maximum ISO (native):   3200
Minimum ISO (native):   100
ISO Settings: Auto / Manual ISO 64 - 6400; ISO 3200 or above is at reduced 5 megapixel resolution 100 - 3,200; expandable to 12800
Auto ISO Mode: Yes Yes
White Balance Settings: TBD, Manual Auto, Incandescent, Fluorescent (7 types), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual;all except Preset Manual with fine tuning
Shutter Speed Range: 1/2000 - 4 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL Multi-Segment, Center-weighted, Spot 420 segment 3D color matrix metering II, color matrix metering II, center-weighted, spot (3.5mm)
Program Auto Exposure: No Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Auto Picture (7 modes) Portrait, Landscape, Child, Sports, Close up, Night portrait
Self Timer: 2 or 10 seconds 10 or 2 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, On, Off, Red-Eye Reduction Red-Eye Reduction, Red-Eye Reduction with Slow Sync, Slow Sync, Rear-Curtain Sync.
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: Wide: 0.2 - 4.6m, Tele: 0.5 - 2.1m (ISO Auto) Lens dependent
Max Flash Sync:   1/200
Flash Exposure Compensation:   -3 to +1 EV in 0.3EV steps
External Flash Connection: n/a ISO hot shoe
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   RAW (12-bit .NEF), RAW+JPEG
Movie File Format: AVI (Motion JPEG) MOV H.264/MPEG-4
Included Memory: 34.8 MB No memory included
Included Memory Type: Internal  
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes
Remote Control Type:   Optional, MC-DC2 corded
Connections (extended): DC Input Type C mini-HDMI with CEC, Accessory Terminal (MC-DC2 remote cord or GP-1 GPS unit)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.55
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.54
Buffer size for RAW shooting in single shot mode (frames):   Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   2.9
Buffer size for JPEG shooting in burst mode (frames, max resolution):   100
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid):   0.28 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.200 seconds
Shutter lag (full AF, with flash):   0.30 seconds
Shutter Lag (prefocused):   0.117 seconds
Shutter Lag (notes):   Live View: Full AF lag (AF-S or AF-F) = 1.5s Prefocused lag = 0.479s
Startup Time:   0.4 seconds
Play -> Record Time:   0.3 seconds
Flash cycle time, full power:   3.5 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 620 shots (Lithium AA)  
Battery Life, Still (CIPA Rating OVF/EVF):   550 shots
Battery Life, Video:    
Battery Form Factor: 2 x AA Proprietary EN-EL14
Usable Battery Types: Alkaline or Lithium disposable, NiMH rechargeable Lithium-ion rechargeable
Batteries Included: 2 x AA (type TBD) 1 x Proprietary EN-EL14 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software CD-ROM S-SW87 Nikon Software Suite CD-ROM
OS Compatibility:   Windows, Mac OS
Miscellaneous
Notes & Features: Pixel Track SR, High-Sensitivity SR, Movie SR mode. Available colors: Champagne Gold, Wine Red, Deep Blue. 1080p HD movies, Quiet Shutter mode, new full-time AF in Movie mode.