• APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • APS-C 366.6mm2
  • 24.1 megapixels
  • ISO 100 - 6400
  • Detailed specifications
  • Sony Alpha SLT-A55V
  • Nikon D7100
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Nikon D7100 webpage
Predecessor:   Nikon D7000
D7000 vs D7100
Successor:   Nikon D7200
D7100 vs D7200
General
Model Number: A55 D7100
Alternate Model Number(s): SLT-A55 (w/o GPS)  
Camera Format: SLR Pro SLR
Currently Manufactured: No No
Retail Price: $849.99 $1599.95
Street Price: $733.99 $744.95
Date Available: 2010-10-15 2013-03-30
Tripod Mount: Yes Yes
Weight: 25.6 oz (727 g)
includes batteries, kit lens
43.1 oz (1,222 g)
includes batteries, kit lens
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
5.3 x 4.2 x 3.0 in.
(136 x 107 x 76 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Toshiba
Effective Megapixels: 16.2 24.1
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.82 microns 3.92 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2, 16:9 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 73 83
DxO Color Depth Score (bits): 23.0 24.2
DxO Dynamic Range Score (evs): 12.4 13.7
DxO Maximum Effective ISO Score (iso): 818 1,256
Image Capture
Image Resolution: 4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other),
7152 x 1080 (7.7 MP, Other),
4912 x 1080 (5.3 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
6000 x 4000 (24.0 MP, 3:2),
4494 x 3000 (13.5 MP, 3:2),
2992 x 2000 (6.0 MP, 3:2),
4800 x 3200 (15.4 MP, 3:2),
3600 x 2400 (8.6 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2)
Image File Format: JPEG, RAW (ARW 2.2), RAW+JPEG JPEG (EXIF 2.3), NEF (RAW), 12 or 14 bit, RAW+JPEG
Continuous-mode frames/second: 9.0 5.9
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
1920x1080 (30p/​25p/​24p)
1920x1080 (60i/​50i (1.3x crop))
1280x720 (60p/​50p)
640x424 (30p/​25p)
Movie File Format: AVCHD, MP4 MOV (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM)
Composite Video Out: No Yes
NTSC/PAL Switchable Video: n/a Yes
Video Usable as Viewfinder: n/a Yes
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Nikon F
Lens: Sony 18-55mm f/3.5-5.6 DT SAM Nikkor AF-S 18-105mm f/3.5 -5.6G ED VR
Focal Length (35mm equivalent): 27 - 83mm 27 - 158mm
Focal Length (actual): 18 - 55mm 18 - 105mm
Zoom Ratio: 3.00x 5.80x
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T) f/3.5 -22 (W), f/5.6 -38 (T)
Integrated ND Filter: No No
Normal Focus Range:   45 cm to Infinity
17.7 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 67.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. 51 point (15 cross-type sensors, center f/8 compatible) TTL phase detection with 3D focus tracking by Nikon Multi-CAM 3500 DX; Contrast-detect AF in Live View & Movie modes
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF type; 1.1cm (0.43") 1,152Kdots, 100% coverage, 1.10x mag., 19mm eyepoint, -4 to +4 diopter SLR type: eye-level pentaprism, 100% coverage, 0.94x mag., 19.5mm eyepoint, -2 to +1 diopter, OLED overlay display
Focus Peaking: No No
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent): 0.73x 0.63x
Viewfinder Magnification (nominal/claimed): 1.10x 0.94x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 921,600 dots 1,228,800 dots (307,200 px)
Touchscreen: No No
Articulating Screen: Yes No
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 11.8x  
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 12800 6400
Minimum ISO (native): 100 100
ISO Settings: Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600) Auto, 100-6400, Hi-1=12800, Hi-2=25600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation) Auto, Cloudy, Shade, Direct Sunlight, Flash, Fluorescent (7 types), Incandescent, Kelvin Color Temperature, Preset manual (up to 3); Fine tuning available.
Shutter Speed Range: 1/4000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot 3D Color Matrix Metering II, Center-weighted, Spot (2.5%), with 2016-pixel RGB sensor
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, Night view, Hand-held Twilight, Sweep Panorama (2D/3D) Scene: Portrait, landscape, child, sports, close-up, night portrait, night landscape, party/indoor, beach/snow, sunset, dusk/dawn, pet portrait, candlelight, blossom, autumn colors, food; Effects: silhouette, high key, low key, night vision, color sketch, miniature effect, selective color; Active D-Lighting; HDR.
Self Timer: 2 or 10 seconds 2 to 20 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Front-Curtain Sync, Red-Eye Reduction, Red-Eye Reduction with Slow Sync, Slow Sync, and Rear-Curtain Sync; supports Advanced Wireless Lighting system
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 12.0 m / 39.4 ft.
Flash Range Description: Lens dependent Lens dependent (GN=12m/39ft at ISO 100)
Max Flash Sync: 1/160 1/250 (up to 1/320s with lower flash range)
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps -3 to +1 EV in 0.3EV steps
External Flash Connection: Hot shoe Hot Shoe
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:   Dual slots, UHS-I compatible
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (ARW 2.2), RAW+JPEG NEF (RAW), 12 or 14 bit, RAW+JPEG
Movie File Format: AVCHD, MP4 MOV (Video: H.264/MPEG-4 AVC; Audio: Stereo Linear PCM)
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No
Bluetooth: No No
Built-In GPS: Yes No
Microphone Jack: Yes Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired Optional: wired or wireless
Connections (extended): Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack Type-C Mini HDMI, Accessory Terminal, Stereo Microphone Jack, Stereo Headphone Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.52 0.54
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.52 0.53
Buffer size for RAW shooting in single shot mode (frames): 28 Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.52
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 9.0 5.9
Buffer size for JPEG shooting in burst mode (frames, max resolution): 32 12
RAW shooting speed in burst mode (fps):   5.3
Buffer size for RAW shooting in burst mode (frames):   5
RAW+JPEG shooting speed in burst mode (fps):   4.9
Buffer Size for RAW+JPEG shooting in burst mode (frames):   5
Shutter lag (full AF, wide/mid): 0.22 seconds 0.25 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   1.94 seconds
Shutter lag (prefocused, live view - DSLR):   0.248 seconds
Shutter Lag (manual focus): 0.214 seconds 0.055 seconds
Shutter lag (full AF, with flash): 0.48 seconds 0.30 seconds
Shutter Lag (prefocused): 0.103 seconds 0.054 seconds
Shutter Lag (notes): Full AF, wide-area mode = 0.218s OVF: Full AF shutter lag, Wide-area mode = 0.522s Live View: Full AF shutter lag (AF-S) = 1.935s Full AF shutter lag (AF-F) = 1.823s Prefocused = 0.248
Startup Time: 0.9 seconds 0.3 seconds
Play -> Record Time: 0.6 seconds 0.3 seconds
Flash cycle time, full power: 3.7 seconds 4.0 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 330 shots 950 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FW50 Proprietary EN-EL15, optional MB-D15 battery grip
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary EN-EL15 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Software CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) Nikon ViewNX 2 CD-ROM
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +) Windows, Mac OS X
Miscellaneous
Notes & Features: SteadyShot INSIDE Image Stabilization, Articulating LCD, 1080i HD Video, Multi-frame NR, Hand-held Twilight, Auto HDR, D-Range Optimizer, 2D/3D Sweep Panorama, Smile Shutter, DOF Preview, 10fps Burst Mode, Built-in GPS. SLT-A55 is identical but without GPS. 24MP DX sensor with no optical low-pass filter, EXPEED 3 processor, new 51-point AF system (15 cross-type, center compatible with f/8), 6fps full-resolution burst mode, 7fps in new 1.3x crop mode, 1080p30 movies, 1080i60 movies in new 1.3x crop mode.