• 35mm 861.6mm2
  • 24.6 megapixels
  • ISO 200 - 3200
  • APS-C 369.0mm2
  • 28.2 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Sony Alpha DSLR-A900
  • Samsung NX1
Links
Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A900 NX1
Alternate Model Number(s):    
Camera Format: Pro SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $2999.99 $2799.99
Street Price:   $1,797.00
Date Available: 2008-11-15 2014-11-28
Tripod Mount: Yes Yes
Weight: 33.1 oz (939 g)
includes batteries
45.5 oz (1,290 g)
includes batteries, kit lens
Size: 6.2 x 4.6 x 3.2 in.
(156 x 117 x 82 mm)
5.5 x 4.0 x 2.6 in.
(139 x 102 x 66 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Samsung
Effective Megapixels: 24.6 28.2
Sensor Format: 35mm APS-C
Sensor size: 861.6mm2 (35.90mm x 24.00mm) 368.95mm2 (23.50mm x 15.70mm)
Approximate Pixel Pitch: 5.94 microns 3.63 microns
Focal Length Multiplier: 1.0x 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 Yes
DxO Sensor Score: 79 83
DxO Color Depth Score (bits): 23.7 24.2
DxO Dynamic Range Score (evs): 12.3 13.2
DxO Maximum Effective ISO Score (iso): 1,431 1,363
Image Capture
Image Resolution: 6048 x 4032 (24.4 MP, 3:2),
6048 x 3408 (20.6 MP, Other),
4400 x 2936 (12.9 MP, 3:2),
4400 x 2472 (10.9 MP, 16:9),
3984 x 2656 (10.6 MP, 3:2),
3024 x 2016 (6.1 MP, 3:2),
2896 x 1928 (5.6 MP, 3:2),
3024 x 1704 (5.2 MP, Other),
1984 x 1320 (2.6 MP, 3:2)
6480 x 4320 (28.0 MP, 3:2),
4560 x 3040 (13.9 MP, 3:2),
3264 x 2176 (7.1 MP, 3:2),
2112 x 1408 (3.0 MP, 3:2),
6480 x 3648 (23.6 MP, 16:9),
4608 x 2592 (11.9 MP, 16:9),
3328 x 1872 (6.2 MP, 16:9),
2048 x 1152 (2.4 MP, 16:9),
4320 x 4320 (18.7 MP, 1:1),
3088 x 3088 (9.5 MP, 1:1),
2160 x 2160 (4.7 MP, 1:1),
1408 x 1408 (2.0 MP, 1:1)
Image File Format: JPEG (EXIF 2.21), RAW, cRAW, RAW+JPEG; (ARW 2.0) JPEG, MPO, RAW (.SRW), RAW+JPEG
Continuous-mode frames/second: 5.0 15.2
Video Capture
Can take movies: No Yes
Movie Resolution: 4096x2160 (24p)
3840x2160 (30p/​24p)
1920x1080 (60p/​30p/​24p)
1280x720 (60p/​30p)
640x480 (60p/​30p)
1920x1080 (120p)
1280x720 (120p)
640x480 (120p)
Movie File Format:   MP4 (Video: HEVC (H.265) / Sound: AAC)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: No n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Samsung NX
Lens: n/a Samsung 16-50mm f/2-2.8 S ED OIS NX
Focal Length (35mm equivalent):   25 - 77mm
Focal Length (actual):   16 - 50mm
Zoom Ratio:   3.13x
Aperture Range:   f/2.0 - 22 (W), f/2.8 - 22 (T); 9-blade (rounded) aperture
Integrated ND Filter: No No
Normal Focus Range:   30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 72.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No Yes
Digital Zoom Values: n/a Up to 2x Intelli-Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL phase detection with 10 assist points, center dual-cross at f/2.8. Hybrid contrast/phase-detect AF: 205-point PDAF (153 cross-point type) + 209-point CDAF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD (playback only) EVF / OLED
Viewfinder Type: SLR type; eye-level pentaprism with 100% coverage, 0.74x mag., 20mm eyepoint, -3 to +1 diopter OLED EVF with eye sensor; XGA (1024x768) 2,359K dots; 100% Field of view; 1.04x Magnification (50mm eq. lens); 21.0mm eyepoint; -4 to +2 diopter
Focus Peaking: No Yes
EVF Resolution: n/a 2,359,296 dots (786,432 pixels)
Viewfinder Magnification (35mm equivalent): 0.74x 0.69x
Viewfinder Magnification (nominal/claimed): 0.74x 1.04x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots 1,036,800 dots (345,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 19.0x  
Top Deck Display: Yes Yes
Exposure
Maximum ISO (native): 3200 25600
Minimum ISO (native): 200 100
ISO Settings: Auto, 200-3200, Extensions to 100 and 6400 Auto, 100 - 25600 (1 or 1/3EV steps); 51200 (extended)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Color Temperature from 2,500K to 9,900K, Custom (3) Auto, Daylight, Cloudy, Fluorescent (W, N, D), Tungsten, Auto+Tungsten, Flash, Custom, K (Manual); Micro Adjustment each 7 steps in Amber/Blue and Green/Magenta axes
Shutter Speed Range: 1/8000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 40-segment Honeycomb Pattern, Center-weighted, Spot Multi (221 segments), Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes:   Action Freeze, Beauty Face, Fireworks, Landscape, Light Trace, Multi-Exposure, Night, Panorama (Live), Rich Tone (HDR), Samsung Auto Shutter, Silhouette, Sunset, Waterfall; Smart Range+, HDR (Auto)
Self Timer: 2 or 10 seconds 2-30 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: No Yes
Flash Modes: n/a Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off
Flash Guide Number (ISO 100): n/a 11.0 m / 36.1 ft.
Flash Range Description: n/a Lens dependent; GN=11 (ISO 100, m)
Max Flash Sync: 1/250 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.5EV steps
External Flash Connection: Hot shoe, PC-sync Hot shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: CF1 / CF2 / MS Duo / MS PRO Duo / Microdrive SD / SDHC / SDXC
UHS Support:   UHS-II
Other Memory:    
Dual Card Slots: Yes No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW, cRAW, RAW+JPEG; (ARW 2.0) RAW (.SRW), RAW+JPEG
Movie File Format:   MP4 (Video: HEVC (H.265) / Sound: AAC)
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: Yes
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes No
Remote Control: Yes Yes
Remote Control Type: Wired or wireless Wi-Fi live view; optional wired
Connections (extended): DC input, Multi-connector, Sync termimal, Remote terminal, HDMI Type-C minijack Wi-Fi (IEEE 802.11b/g/n/ac) with NFC; Bluetooth; Expansion port for grip; Mult-function USB port compatible with wired remote
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.40 0.41
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.41  
Buffer size for RAW shooting in single shot mode (frames): 15  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.42
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 5.0 15.2
Buffer size for JPEG shooting in burst mode (frames, max resolution): 11 53
RAW shooting speed in burst mode (fps):   15.1
Buffer size for RAW shooting in burst mode (frames):   22
RAW+JPEG shooting speed in burst mode (fps):   15.2
Buffer Size for RAW+JPEG shooting in burst mode (frames):   20
Shutter lag (full AF, wide/mid): 0.18 seconds 0.20 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.153 seconds 0.079 seconds
Shutter lag (full AF, with flash):   0.29 seconds
Shutter Lag (prefocused): 0.072 seconds 0.055 seconds
Shutter Lag (notes):   Full AF lag, Single-area AF mode, EFC shutter enabled = 0.202s
Startup Time: 0.5 seconds 0.7 seconds
Play -> Record Time: 0.3 seconds 0.7 seconds
Flash cycle time, full power:   3.7 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   500 shots
Battery Life, Still (CIPA Rating OVF/EVF): 880 shots 500 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary BP-1900
Usable Battery Types: NP-FM500H Lithium-ion rechargeable 1410mAh Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H Lithium-ion rechargeable 2 x Proprietary BP-1900 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: Yes
Software
Included Software: Image Data Converter SR, Image Data Lightbox SR, Remote Camera Control (all Windows & Macintosh), Picture Motion Browser (Windows only). i-Launcher (web version), Power Media Player, Samsung Movie Converter, Samsung Raw Converter, Samsung DNG Converter, Adobe Photoshop Lightroom 5
OS Compatibility: Windows 2000Pro/XP/Vista; Mac OS X (v 10.1.3+)  
Miscellaneous
Notes & Features: 24.6MP Full-frame CMOS sensor, In-body SteadyShot Image Stabilization, Intelligent Preview, Enhanced DRO, Magnesium-alloy Body, Dust/Moisture Resistance, 100K Shutter, 3 User Programmable Memory Modes, AF Micro-adjustment, Top Mounted LCD, Quick Navigation system, Custom button, PhotoTV HD output via HDMI optimized for Sony Bravia TVs. Available body-only, bundled with 16-50 f/3.5-5.6 PZ OIS lens, or bundled with 16-50mm f/2-2.8 S OIS lens with battery grip, dedicated battery charger and second battery.