• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 200 - 12,800
  • 2/3 inch 58.1mm2
  • 12.0 megapixels
  • 24.00mm - 624.00mm (35mm eq.)
  • Detailed specifications
  • Sony Alpha DSLR-A550
  • Fujifilm X-S1
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: DSLR-A550 X-S1
Alternate Model Number(s):    
Camera Format: SLR EVF
Currently Manufactured: No No
Retail Price: $1049.99 $799.95
Street Price: $859.40 $699.00
Date Available: 2009-10-08 2012-01-15
Tripod Mount: Yes Yes
Weight: 32.2 oz (912 g)
includes batteries, kit lens
33.3 oz (945 g)
includes batteries
Size: 5.4 x 4.1 x 3.3 in.
(137 x 104 x 84 mm)
5.3 x 4.2 x 5.9 in.
(135 x 107 x 149 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 14.2 12.0
Sensor Format: APS-C 2/3 inch
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 58.08mm2 (8.8mm x 6.6mm)
Approximate Pixel Pitch: 5.16 microns 2.20 microns
Focal Length Multiplier: 1.5x n/a
Aspect Ratio: 3:2, 16:9 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed  
Self-Cleaning: Yes No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 66  
DxO Color Depth Score (bits): 21.9  
DxO Dynamic Range Score (evs): 11.8  
DxO Maximum Effective ISO Score (iso): 807  
Image Capture
Image Resolution: 4592 x 3056 (14.0 MP, 3:2),
4592 x 2576 (11.8 MP, 16:9),
3344 x 2224 (7.4 MP, 3:2),
3344 x 1872 (6.3 MP, Other),
2288 x 1520 (3.5 MP, Other),
2288 x 1280 (2.9 MP, Other)
4000 x 3000 (12.0 MP, 4:3),
4000 x 2664 (10.7 MP, 3:2),
4000 x 2248 (9.0 MP, 16:9),
2992 x 2992 (9.0 MP, 1:1),
2816 x 2112 (5.9 MP, 4:3),
2816 x 1864 (5.2 MP, Other),
2816 x 1584 (4.5 MP, 16:9),
2112 x 2112 (4.5 MP, 1:1),
2048 x 1536 (3.1 MP, 4:3),
2048 x 1360 (2.8 MP, Other),
1920 x 1080 (2.1 MP, 16:9),
1536 x 1536 (2.4 MP, 1:1),
11520 x 1624 (18.7 MP, Other),
11520 x 1080 (12.4 MP, Other),
5760 x 1624 (9.4 MP, Other),
5760 x 1080 (6.2 MP, Other),
3840 x 1624 (6.2 MP, Other),
3840 x 1080 (4.1 MP, Other)
Image File Format: JPEG, RAW JPEG (Exif Ver 2.3), RAW (RAF format), RAW + JPEG
Continuous-mode frames/second: 6.7 7.0
Video Capture
Can take movies: No Yes
Movie Resolution: 1920x1080 (30p)
1280x720 (30p)
640x480 (30p)
Movie File Format:   H.264 (MOV) with stereo sound
Composite Video Out: No Yes
NTSC/PAL Switchable Video: n/a Yes
Video Usable as Viewfinder: n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) n/a
Lens: Sony 18-55mm f/3.5-5.6 DT SAM Fujinon optical zoom lens;17 elements in 12 groups (4 aspherical glass molded lenses, 2 ED lenses included)
Focal Length (35mm equivalent): 27 - 83mm 24 - 624mm
Focal Length (actual): 18 - 55mm 6.1 - 158.6mm
Zoom Ratio: 3.00x 26.00x
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T) f/2.8 (W) / f/5.6 (T) - f/11 (9-blade aperture diaphragm)
Integrated ND Filter: No No
Normal Focus Range:   30 cm to Infinity
11.8 in to Infinity
Macro Focus Range:   1 - 100 cm
0.4 - 39.4 in
Filter Thread: 55.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No Yes
Digital Zoom Values: n/a Up to 2x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL phase detection (one cross-type sensor) with eye-start AF; Wide, Spot, Local modes Contrast Detection AF: Multi, Area, Tracking
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; eye-level pentamirror, 95% coverage, 0.80x mag., 19mm eyepoint, -2.5 to +1.0 diopter EVF type; 0.47", 1440k-dot color TFT LCD, 100% coverage, -5 to +3 diopter adjustment
Focus Peaking: No No
EVF Resolution: n/a  
Viewfinder Magnification (35mm equivalent): 0.53x  
Viewfinder Magnification (nominal/claimed): 0.80x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots 460,000 dots
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen:
Selfie Screen:
Max Playback Zoom: 14.0x  
Top Deck Display: No
Exposure
Maximum ISO (native): 12800  
Minimum ISO (native): 200  
ISO Settings: Auto (200-1600), 200, 400, 800, 1600, 3200, 6400, 12800 Auto(400), Auto(800), Auto(1600), Auto(3200), ISO 100, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000*, 5000*, 6400*, 12800*; * ISO4000, 5000, 6400 : M mode or lower, ISO12800 : S mode
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom Automatic scene recognition, Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Custom, Color temperature selection (2,500K - 10,000K)
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: 40-segment Multi Segment, Center-weighted, Spot; (1200 zone evaluative metering in Live View) TTL 256-zones metering; Multi, Spot, Average
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, Sunset, Night Portrait/Night View EXR mode (EXR Auto / Resolution priority / High ISO & Low noise priority / Dynamic range priority), Natural Light & Flash, Natural Light, Portrait, Portrait Enhancer, Dog, Cat, Landscape, Sport, Night, Night (Tripod), Fireworks, Sunset, Snow, Beach, Party, Flower, Text; Film simulation, Best frame capture, Advanced mode (Motion panorama360, Pro focus, Pro low light), High Speed Movie (70/120/200 fps.)
Self Timer: 2 or 10 seconds 10 or 2; Auto seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Red-eye removal OFF : Auto, Forced Flash, Suppressed Flash, Slow Synchro. Red-eye removal ON : Red-eye Reduction Auto, Red-eye Reduction & Forced Flash, Suppressed Flash, Red-eye Reduction & Slow Synchro.
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. n/a
Flash Range Description: Lens dependent ISO AUTO (800): Wide : Approx. 30 cm - 8.0 m / 0.9 ft. - 26.2 ft.; Telephoto : Approx. 2.0 m - 4.0 m / 6.5 ft. - 13.1 ft.
Max Flash Sync: 1/160  
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps  
External Flash Connection: Hot shoe Hot Shoe
Built-In Wireless Flash Control: Full TTL exposure  
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW RAW (RAF format), RAW + JPEG
Movie File Format:   H.264 (MOV) with stereo sound
Included Memory:    
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC:
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
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 RR-80
Connections (extended): DC input, mini-HDMI, Wired Remote Mini HDMI (Type C), 3.5mm External Stereo Microphone Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 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): 19  
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): 6.7 7.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 15 8
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): 0.18 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.178 seconds  
Shutter lag (full AF, with flash): 0.22 seconds  
Shutter Lag (prefocused): 0.074 seconds  
Shutter Lag (notes): Quick AF Live View shutter lag: 0.188s  
Startup Time: 0.5 seconds  
Play -> Record Time: 0.4 seconds  
Flash cycle time, full power: 3.5 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   460 shots
Battery Life, Still (CIPA Rating OVF/EVF): 950 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary NP-95
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H 1 x Proprietary NP-95 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software/USB Driver CD-ROM Fujifilm CD-ROM
OS Compatibility: Windows 2000/XP/Vista, Mac OS X (v. 10.13+)  
Miscellaneous
Notes & Features: Exmore CMOS Sensor, Variable-angle LCD, SteadyShot In-body Sensor-shift Image Stabilization, Live View, Auto HDR, D-Range Optimizer (Auto, Level 1-5), HDMI Output, 7 fps (AF/AE Locked). Optical Image Stabilization, Articulating 3-inch LCD, EXR mode (EXR Auto / Resolution priority / High ISO & Low noise priority / Dynamic range priority), Face recognition, Face Detection, Auto red-eye removal, Film simulation, Framing guideline, Frame No. memory, Histogram display, Advanced mode (Motion panorama360, Pro focus, Pro low light), High Speed Movie (70/120/200 fps), Electronic level, One-touch RAW, Advanced Anti Blur, Focus check, Color space, UHS-I support.