• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 200 - 12,800
  • 35mm 864.0mm2
  • 61.0 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Sony Alpha DSLR-A550
  • Sigma fp L
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: DSLR-A550 fp L
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $1049.99 $2499.00
Street Price: $859.40  
Date Available: 2009-10-08 2021-04-14
Tripod Mount: Yes Yes
Weight: 32.2 oz (912 g)
includes batteries, kit lens
15.1 oz (427 g)
includes batteries
Size: 5.4 x 4.1 x 3.3 in.
(137 x 104 x 84 mm)
4.4 x 2.8 x 1.8 in.
(113 x 70 x 45 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 14.2 61.0
Sensor Format: APS-C 35mm
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 864mm2 (36.00mm x 24.00mm)
Approximate Pixel Pitch: 5.16 microns 3.78 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2, 16:9 3:2
Color Filter Type: RGBG Bayer
Anti Aliasing Filter: Fixed 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)
9520 x 6328 (60.2 MP, 3:2),
6240 x 4144 (25.9 MP, Other),
4768 x 3168 (15.1 MP, Other),
3840 x 2552 (9.8 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2),
8944 x 6328 (56.6 MP, Other),
5856 x 4144 (24.3 MP, Other),
4480 x 3168 (14.2 MP, Other),
3616 x 2552 (9.2 MP, Other),
1808 x 1280 (2.3 MP, Other),
8432 x 6328 (53.4 MP, 4:3),
5520 x 4144 (22.9 MP, 4:3),
4224 x 3168 (13.4 MP, 4:3),
3408 x 2552 (8.7 MP, Other),
1696 x 1280 (2.2 MP, 4:3),
9520 x 5352 (51.0 MP, 16:9),
6240 x 3512 (21.9 MP, 16:9),
4768 x 2680 (12.8 MP, 16:9),
3840 x 2160 (8.3 MP, 16:9),
1920 x 1080 (2.1 MP, 16:9),
7856 x 6328 (49.7 MP, Other),
5152 x 4144 (21.3 MP, Other),
3920 x 3168 (12.4 MP, Other),
3168 x 2552 (8.1 MP, Other)
Image File Format: JPEG, RAW JPEG (EXIF 2.3), RAW (lossless compressed DNG (12 or 14 bit)), RAW+JPEG
Continuous-mode frames/second: 6.7 10.0
Video Capture
Can take movies: No Yes
Movie Resolution: 3840x2160 (30p/​25p/​24p)
1920x1080 (120p/​100p/​60p/​50p/​30p/​25p/​24p)
Movie File Format:   CinemaDNG (8/10/12-bit) / MOV H.264( ALL-I /GOP) with Linear PCM stereo audio (48KHz, 16-bit)
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) L Mount
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 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
Digital Zoom Values: n/a  
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 Hybrid Image plane phase-difference AF + Contrast detect AF: Auto, 49-points selection mode, Free Movement mode, Face / Eye Detection AF mode, Tracking AF mode
Auto Focus Assist Light? Yes No
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD No / LCD
Viewfinder Type: SLR type; eye-level pentamirror, 95% coverage, 0.80x mag., 19mm eyepoint, -2.5 to +1.0 diopter Optional Electronic Viewfinder EVF-11 can be attached to side of camera (0.5 inch OLED panel, approx. 3.68 M dots; 0.83x mag. ratio; 21mm eyepoint; -4 to +3 diopter) / LCD View Finder LVF-11 can be attached to rear LCD
Focus Peaking: No Yes
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.53x  
Viewfinder Magnification (nominal/claimed): 0.80x  
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.2
Rear Display Resolution: 921,600 dots 2,100,000 dots
Touchscreen: No Yes
Articulating Screen: Yes No
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 14.0x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800 25600
Minimum ISO (native): 200 100
ISO Settings: Auto (200-1600), 200, 400, 800, 1600, 3200, 6400, 12800 Auto, 100-25600, expandable to ISO 6, 12, 25, 50, 51200, 102400
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom 1/2/3
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: 40-segment Multi Segment, Center-weighted, Spot; (1200 zone evaluative metering in Live View) Evaluative, center-weighted average, spot
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 Color modes: Standard, Vivid, Neutral, Portrait, Landscape, Cinema, Teal & Orange, Sunset Red, Forest Green,FOV Classic Blue, FOV Classic Yellow, Monochrome; Fill Light, Shading Correction, HDR shooting
Self Timer: 2 or 10 seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off S-TTL automatic light control, Manual, Wireless flash, Multi-emission; Red-eye effect reduction, Slow synchronization, 2nd Curtain Synchronization
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. n/a
Flash Range Description: Lens dependent n/a
Max Flash Sync: 1/160 1/15 (1/10 or less in 14-bit RAW mode)
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot shoe Hot Shoe Unit HU-11 (supplied)
Built-In Wireless Flash Control: Full TTL exposure No
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC SD / SDHC / SDXC
UHS Support:   UHS-II
Other Memory:   Supports Portable SSD storage
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW RAW (lossless compressed DNG (12 or 14 bit)), RAW+JPEG
Movie File Format:   CinemaDNG (8/10/12-bit) / MOV H.264( ALL-I /GOP) with Linear PCM stereo audio (48KHz, 16-bit)
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 3.0 Super Speed
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired Optional wired (Cable Release CR-41)
Connections (extended): DC input, mini-HDMI, Wired Remote USB Type-C (USB3.1 Gen1, with Power Delivery), Micro HDMI (Type D), 3.5mm stereo mic/remote jack, Headphone jack available on optional EVF-11 accessory
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 10.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 15 12
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):   240 shots
Battery Life, Still (CIPA Rating OVF/EVF): 950 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary BP-51
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H 1 x Proprietary BP-51 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes No
Dedicated Battery Charger Included: No
Internal Charging Supported: Yes
Software
Included Software: Software/USB Driver 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). The SIGMA fp L supports USB charging while the camera is powered on. You can shoot without interruption while charging the camera using a mobile battery. Functions as a webcam with PC powering camera via the USB connection.