• APS-C 368.2mm2
  • 16.2 megapixels
  • ISO 100 - 6400
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Nikon D5100
  • Pentax K-S2
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Nikon D5000
D5000 vs D5100
 
Successor: Nikon D5200
D5100 vs D5200
 
General
Model Number: D5100 K-S2
Alternate Model Number(s):    
Camera Format: SLR SLR
Currently Manufactured: No No
Retail Price: $899.95 $799.95
Street Price: $649.99 $499.00
Date Available: 2011-04-17 2015-02-15
Tripod Mount: Yes Yes
Weight: 29.2 oz (829 g)
includes batteries, kit lens
30.3 oz (859 g)
includes batteries, kit lens
Size: 5.0 x 3.8 x 3.1 in.
(128 x 97 x 79 mm)
4.8 x 3.6 x 2.6 in.
(122 x 91 x 65 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 16.2 20.1
Sensor Format: APS-C APS-C
Sensor size: 368.16mm2 (23.60mm x 15.60mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.79 microns 4.29 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 80  
DxO Color Depth Score (bits): 23.5  
DxO Dynamic Range Score (evs): 13.6  
DxO Maximum Effective ISO Score (iso): 1,183  
Image Capture
Image Resolution: 4928 x 3264 (16.1 MP, Other),
3696 x 2448 (9.0 MP, Other),
2464 x 1632 (4.0 MP, Other)
5472 x 3648 (20.0 MP, 3:2),
4224 x 2816 (11.9 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
Image File Format: JPEG (EXIF 2.3), NEF (RAW) 14-bits, RAW+JPEG JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG)
Continuous-mode frames/second: 3.9 5.2
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30/​25/​24)
1280x720 (30/​25/​24)
640x424 (30/​25)
1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: MOV H.264/MPEG-4 MPEG-4 AVC/H.264 (MOV)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: Yes n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Nikon F Pentax K (KA/KAF/KAF2/3)
Lens: NIKKOR AF-S 18-55mm f/3.5-5.6G DX VR smc Pentax-D AL 18-50mm f/4-5.6 DC WR RE; 11 elements in 8 groups
Focal Length (35mm equivalent): 27 - 83mm 27 - 75mm
Focal Length (actual): 18 - 55mm 18 - 50mm
Zoom Ratio: 3.00x 2.78x
Aperture Range: f/3.5 -22 (W), f/5.6 -36 (T) f/4 - f/22 (wide) / f/5.6 - f/32 (tele)
Integrated ND Filter: No No
Normal Focus Range: 28 cm to Infinity
11.0 in to Infinity
30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:    
Filter Thread: 52.0mm 58.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 11 point TTL phase detection with 3D focus tracking by Nikon Multi-CAM 1000; Single-point, Dynamic and Auto Area modes. One cross-type sensor. SAFOX 11 TTL phase-matching: 11 points (9 cross type focus points in the center)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / LCD
Viewfinder Type: SLR type; eye-level pentamirror, ~95% coverage, ~0.78x magnification (50mm f/1.4 lens and infinity, -1.0m^1), 17.9mm eyepoint (-1.0m^1), -1.7 to +0.7 diopter SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., 20.5mm eyepoint, -2.5 to +1.5 diopter
Focus Peaking: No Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.52x 0.63x
Viewfinder Magnification (nominal/claimed): 0.78x 0.95x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots 921,600 dots (230,400 px)
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes Yes
Selfie Screen: Yes Yes
Max Playback Zoom: 31.0x 16.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 6400 51200
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-6400, Hi-1=12800, Hi-2=25600 Auto, 100-51200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Manual Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten Light, Flash, CTE, Manual, Color Temperature
Shutter Speed Range: 1/4000 - 30 sec 1/6000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 3D Color Matrix Metering II (420-pixel RGB), Center-weighted (75% given to 8mm circle in the center), Spot (3.5mm circle (2.5%) centered on selected focus point) TTL open-aperture: 77 segment Multi, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Landscape, Child, Sports, Close up, Scene (Party/indoor, Beach/snow, Sunset, Dusk/dawn, Pet portrait, Candlelight, Blossom, Autumn colors, Food, Night portrait, Night landscape), Special Effects (Stills or D-movies: Silhouette, Selective Color, Night Vision, High Key, Low Key, Miniature Effect, Color Sketch). Shutter & Aperture Priority (TAv), Sensitivity Priority, Advanced HDR, Scene Mode (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR*, Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum); Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; Dynamic range adjustment: Highlight, shadow
Self Timer: 2, 5, 10, 20 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, auto with red-eye reduction, auto slow sync, auto slow sync with red-eye reduction, fill-flash, red-eye reduction, slow sync, slow sync with red-eye reduction, rear-curtain with slow sync, rear-curtain sync, off; 18-300mm coveraqge Auto Flash Discharge, Auto Flash + Red-eye Reduction (Auto Picture, Scene) Flash On, Flash On+ Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, Manual Flash Discharge (Full-1/128)
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 12.0 m / 39.4 ft.
Flash Range Description: Lens dependent GN=12 (m, ISO 100); range depends on lens aperture
Max Flash Sync: 1/200 1/180
Flash Exposure Compensation: -3 to +1 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Hot shoe Hot Shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: NEF (RAW) 14-bits, RAW+JPEG 12-bit RAW (.PEF, .DNG)
Movie File Format: MOV H.264/MPEG-4 MPEG-4 AVC/H.264 (MOV)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional ML-L3 IR Remote or MC-DC2 Remote Cord Optional IR or Wi-Fi
Connections (extended): HDMI Out (with CEC), Accessory Terminal for Wired Remote (MC-DC2) or GPS (GP-1), 3.5mm Stereo Mic Jack; DC-input via dummy battery AC adapter. Micro (Type D) HMDI
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.73 0.35
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.77  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.77 0.35
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 3.9 5.2
Buffer size for JPEG shooting in burst mode (frames, max resolution): 100 28
RAW shooting speed in burst mode (fps): 4.0 5.2
Buffer size for RAW shooting in burst mode (frames): 13 9
RAW+JPEG shooting speed in burst mode (fps): 3.9 5.2
Buffer Size for RAW+JPEG shooting in burst mode (frames): 9 6
Shutter lag (full AF, wide/mid): 0.27 seconds 0.12 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR): 1.28 seconds 0.75 seconds
Shutter lag (prefocused, live view - DSLR): 0.488 seconds 0.214 seconds
Shutter Lag (manual focus): 0.248 seconds 0.098 seconds
Shutter lag (full AF, with flash): 0.29 seconds 0.15 seconds
Shutter Lag (prefocused): 0.114 seconds 0.077 seconds
Shutter Lag (notes): Optical Viewfinder: Wide-area AF: 0.408s Live View: Full AF lag: 1.28s Prefocused: 0.49s  
Startup Time: 0.5 seconds 1.0 seconds
Play -> Record Time: 0.4 seconds 0.2 seconds
Flash cycle time, full power: 4.0 seconds 2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 660 shots 410 shots
Battery Life, Video:    
Battery Form Factor: Proprietary EN-EL14 Proprietary D-LI109
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary EN-EL14 Lithium-ion rechargeable 1 x Proprietary D-LI109 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No No
Software
Included Software: ViewNX 2 CD-ROM Digital Camera Utility 5 Software CD-ROM
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: 3" Vari-angle 921K-dot LCD, Full HD Videos (up to 1920x1080@30fps), In-camera Special Effects, Night Vision mode, HDR, Active D-Lighting, 3.5mm External Stereo Mic socket. 20 megapixel AA Filter-less CMOS sensor with Prime MII processor, built-in Wi-Fi with NFC, weather-resistant body, all-new retractable kit zoom lens. The K-S2 will be available in 3 standard colors: black, white, and graphite with an orange accent. RICOH IMAGING is also pleased to announce the color order service for the PENTAX K-S2. The PENTAX K-S2 offers a choice of seven color options in two outdoor-themed collections: three in the Nature Collection; Forest Green, Desert Beige, and Stone Gray as well as four in the Sports Collection: White and Lime, Black and Pink, White with a Racing Stripe, and Black with a Racing Stripe.