• APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • 35mm 861.6mm2
  • 36.3 megapixels
  • ISO 64 - 12,800
  • Detailed specifications
  • Sony Alpha SLT-A55V
  • Nikon D810
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Nikon D800E
D800E vs D810
Successor:   Nikon D850
D810 vs D850
General
Model Number: A55 D810
Alternate Model Number(s): SLT-A55 (w/o GPS)  
Camera Format: SLR Pro SLR
Currently Manufactured: No Yes
Retail Price: $849.99 $3299.95
Street Price: $733.99 $2,290.95
Date Available: 2010-10-15 2014-07-31
Tripod Mount: Yes Yes
Weight: 25.6 oz (727 g)
includes batteries, kit lens
34.9 oz (988 g)
includes batteries
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
5.7 x 4.8 x 3.2 in.
(146 x 123 x 82 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Sony
Effective Megapixels: 16.2 36.3
Sensor Format: APS-C 35mm
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 4.82 microns 4.88 microns
Focal Length Multiplier: 1.5x 1.0x
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 97
DxO Color Depth Score (bits): 23.0 25.7
DxO Dynamic Range Score (evs): 12.4 14.8
DxO Maximum Effective ISO Score (iso): 818 2,853
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)
7360 x 4912 (36.2 MP, 3:2),
5520 x 3680 (20.3 MP, 3:2),
3680 x 2456 (9.0 MP, 3:2),
6114 x 4080 (24.9 MP, 3:2),
4608 x 3056 (14.1 MP, Other),
3072 x 2040 (6.3 MP, Other),
4800 x 3200 (15.4 MP, 3:2),
3600 x 2400 (8.6 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6144 x 4912 (30.2 MP, 5:4),
4608 x 3680 (17.0 MP, 5:4),
3072 x 2456 (7.5 MP, 5:4)
Image File Format: JPEG, RAW (ARW 2.2), RAW+JPEG JPEG (EXIF 2.3), NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; small size available (12-bit uncompressed only); TIFF
Continuous-mode frames/second: 9.0 5.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: AVCHD, MP4 MOV (H.265/MPEG-4 AVC, Linear PCM stereo audio)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
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 n/a
Focal Length (35mm equivalent): 27 - 83mm  
Focal Length (actual): 18 - 55mm  
Zoom Ratio: 3.00x  
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T)  
Integrated ND Filter: No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: 55.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No Yes
Digital Zoom Values: n/a 1.2x, 1.5x (DX), 5:4 crop modes
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. OVF: 51-point TTL phase detection via Nikon Advanced Multi-CAM 3500FX including 15 cross-type sensors; f/8 supported by 11 central sensors; Contrast detection AF in Live View mode
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; eye-level pentaprism, 100% coverage, 0.7x magnification, 17mm eyepoint, -3 to +1 diopter
Focus Peaking: No No
EVF Resolution:   n/a
Viewfinder Magnification (35mm equivalent): 0.73x 0.70x
Viewfinder Magnification (nominal/claimed): 1.10x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 921,600 dots 1,229,000 dots (307,250 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 12800
Minimum ISO (native): 100 64
ISO Settings: Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600) Auto, 64 - 12800 in 1/3, 1/2 or 1EV steps, plus down to 32 in Lo-1, up to 51,200 in Hi-2
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 (2), Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual (6) (Spot WB available in Live View), Color Temperature (2,500K-10,000K); Fine-tuning available for all options.
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 91K-pixel 3D Color Matrix Metering III, Center-weighted (weight of 75% given to 12-mm circle in center of frame; diameter of circle can be changed to 8, 15 or 20 mm, or weighting can be based on average of entire frame), Spot (4mm circle or about 1.5% frame, centered on selected focus area)
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) None
Self Timer: 2 or 10 seconds 2/5/10/20 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, Slow sync, Rear-curtain sync, Red-eye reduction, Red-eye reduction with slow 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 aperture dependent; GN = 12m or 39 ft (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 ISO-type hot-shoe, PC Sync terminal
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC CF1 / SD / SDHC / SDXC
UHS Support:   UHS-I
Other Memory:   UHS-I/UDMA compliant
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (ARW 2.2), RAW+JPEG NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; small size available (12-bit uncompressed only); TIFF
Movie File Format: AVCHD, MP4 MOV (H.265/MPEG-4 AVC, Linear PCM stereo audio)
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 3.0 Super 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 Mini HDMI (Type C), USB 3.0 Micro-B, 10-pin Expansion Terminal (GP-1 GPS compatible), Stereo Mic Mini Jack (3.5mm), Stereo Audio Out (3.5mm)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.52 <0.3
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.52 <0.3
Buffer size for RAW shooting in single shot mode (frames): 28  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   <0.3
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 9.0 5.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): 32 57
RAW shooting speed in burst mode (fps):   5.1
Buffer size for RAW shooting in burst mode (frames):   23
RAW+JPEG shooting speed in burst mode (fps):   5.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   18
Shutter lag (full AF, wide/mid): 0.22 seconds 0.21 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   0.88 seconds
Shutter lag (prefocused, live view - DSLR):   0.158 seconds
Shutter Lag (manual focus): 0.214 seconds 0.056 seconds
Shutter lag (full AF, with flash): 0.48 seconds 0.24 seconds
Shutter Lag (prefocused): 0.103 seconds 0.054 seconds
Shutter Lag (notes): Full AF, wide-area mode = 0.218s OVF, Full Autofocus, 51-point Auto Area = 0.302s Live View, Full Autofocus = 0.875s Live View, Prefocused = 0.158s
Startup Time: 0.9 seconds 0.5 seconds
Play -> Record Time: 0.6 seconds 0.8 seconds
Flash cycle time, full power: 3.7 seconds 2.2 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 330 shots 1200 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FW50 Proprietary
Usable Battery Types: Lithium-ion rechargeable EN-EL15 Lithium-ion rechargeable or MB-D12 battery grip
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 Vista/7/8; Mac OS 10.7.5+
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. Brand-new, 36.3-megapixel FX-format (full-frame) AA-filterless CMOS sensor, expanded sensitivity range (ISO 32-51200), EXPEED 4 processor, Group-area AF mode, 5fps full-res burst mode, electronic front curtain shutter option, Full HD 60p video, Small RAW option, USB 3.0, dual CF/SD slots.