• 1/2.3 inch 28.1mm2
  • 10.0 megapixels
  • 36.00mm - 180.00mm (35mm eq.)
  • 35mm 861.6mm2
  • 50.1 megapixels
  • ISO 100 - 32,000
  • Detailed specifications
  • Nikon Coolpix S550
  • Sony Alpha ILCE-A1
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Prices:   Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: S550 A1
Alternate Model Number(s):   ILCE-1
Camera Format: Ultra Compact Compact System Camera
Currently Manufactured: No Yes
Retail Price: $229.95 $6500.00
Street Price: $194.99 $5,498.00
Date Available: 2008-03-15 2021-03-01
Tripod Mount: Yes Yes
Weight: 4.2 oz (120 g) 26.0 oz (737 g)
includes batteries
Size: 3.5 x 2.1 x 0.9 in.
(90 x 54 x 22 mm)
5.1 x 3.8 x 3.2 in.
(129 x 97 x 81 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 10.0 50.1
Sensor Format: 1/2.3 inch 35mm
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 1.69 microns 4.16 microns
Focal Length Multiplier: n/a 1.0x
Aspect Ratio: 4:3, 16:9 3:2
Color Filter Type:   RGBG
Anti Aliasing Filter:   None
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 3648 x 2736 (10.0 MP, 4:3),
3072 x 2304 (7.1 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1024 x 768 (0.8 MP, 4:3),
640 x 480 (0.3 MP, 4:3)
8640 x 5760 (49.8 MP, 3:2),
5616 x 3744 (21.0 MP, 3:2),
4320 x 2880 (12.4 MP, 3:2),
7680 x 5760 (44.2 MP, 4:3),
4992 x 3744 (18.7 MP, 4:3),
3840 x 2880 (11.1 MP, 4:3),
8760 x 4864 (42.6 MP, Other),
5616 x 3160 (17.7 MP, 16:9),
4320 x 2432 (10.5 MP, 16:9),
5760 x 5760 (33.2 MP, 1:1),
3744 x 3744 (14.0 MP, 1:1),
2880 x 2880 (8.3 MP, 1:1)
Image File Format: JPEG, HEIF, Compressed RAW, Lo, RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: n/a 30.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 7680x4320 (30p/​25p/​24p)
3840x2160 (120p/​100p/​60p/​50p/​30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1920x1080 (1p/​2p/​3p/​4p/​6p/​8p/​12p/​15p/​25p/​30p/​50p/​60p/​100p/​120p/​200p/​240p)
Movie File Format:   XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Sony E
Lens: Nikkor lens, 8 elements in 6 groups n/a
Focal Length (35mm equivalent): 36 - 180mm  
Focal Length (actual): 6.3 - 31.5mm  
Zoom Ratio: 5.00x  
Aperture Range: f/3.5 (wide) / f/5.6 (tele) - ???  
Integrated ND Filter: No No
Normal Focus Range: 35 cm to Infinity
13.8 in to Infinity
 
Macro Focus Range: 10 cm to Infinity
3.9 in to Infinity
 
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x Up to 4x; up to 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect: Auto (9-area automatic selection), Manual (99-area manual selection) Fast Hybrid 4D AF: 759 points (PDAF), 425 points (contrast-detection AF); Wide (759 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF
Auto Focus Assist Light? Yes Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: LCD EVF / LCD
Viewfinder Type:   EVF: 0.64" 9.44M-dot QXGA color OLED, 100% coverage, 0.90x magnification, 60/120/240fps refresh rates, -4.0 to +3.0 diopter, 25mm eyepoint from the eyepiece lens
Focus Peaking: No Yes
EVF Resolution: n/a 9,437,184 dots (3,145,728 pixels)
Viewfinder Magnification (35mm equivalent):   0.90x
Viewfinder Magnification (nominal/claimed):   0.90x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 3.0
Rear Display Resolution: 230,000 dots 1,440,000 dots (360,000 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom:    
Top Deck Display: No
Exposure
Maximum ISO (native):   32000
Minimum ISO (native):   100
ISO Settings: Auto (64 - 800), 100, 200, 400, 800, 1600, 2000; (high sensitivity mode: 64-1600) AUTO, ISO 100 - 32000, expandable to ISO 50 - 102400
Auto ISO Mode: Yes Yes
White Balance Settings: Daylight, Cloudy, Fluorescent, Incandescent, Flash, White Balance Preset Auto (with Priority), Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Underwater, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation)
Shutter Speed Range:   1/32000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes:   1200-zone Evaluative Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight
Program Auto Exposure: No Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Face-Priority AF, Portrait, Landscape, Sports, Night Portrait, Party/Indoor, Beach/Snow, Sunset, Dusk/Dawn, Night Landscape, Close Up, Museum, Fireworks Show, Copy, Back Light, Panorama Assist, Smile Picture Effect: Posterization (Color), Posterization (B/W), Pop Color, Retro Photo, Partial Color (R/G/B/Y), High Contrast Monochrome, Toy Camera (Normal / Cool / Warm / Green / Magenta), Soft High-key; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step)
Self Timer: 10 or 2 seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto, Auto with red-eye reduction, Anytime flash, Flash cancel, Slow sync. Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync:   1/400s (1/500s APS-C crop mode)
Flash Exposure Compensation:   +/- 3.0 EV in 0.3EV steps
External Flash Connection: n/a Multi Interface Hot Shoe with Digital Audio Interface, Sync Terminal
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC / CFexpress
UHS Support:   UHS-II
Other Memory:   2x CFexpress Type A+SD UHS-II
Dual Card Slots: No Yes
RAW Capture Support: No Yes
Uncompressed Format:   RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Movie File Format:   XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
Included Memory: 52.0 MB No memory included
Included Memory Type: Internal  
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 2.0 Full (LOW) Speed USB 2.0 High Speed,USB 3.0 Super Speed,Ethernet,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: No Yes
Remote Control Type:   Optional via IR, USB, Ethernet or Wi-Fi/Bluetooth
Connections (extended):   USB-C (USB 3.2 10Gbps), Type-D Micro HDMI, 1000Base-T Ethernet, 3.5mm Microphone and Headphone Jacks, Sync Terminal
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press?
JPEG shooting speed in burst mode (fps, max resolution):   30.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   165
RAW shooting speed in burst mode (fps):   20.0
Buffer size for RAW shooting in burst mode (frames):   155
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid):    
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 200 shots 530 shots
Battery Life, Still (CIPA Rating OVF/EVF):   430 shots
Battery Life, Video:   150 minutes
Battery Form Factor: Proprietary EN-EL11 Proprietary
Usable Battery Types: Lithium Ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary EN-EL11 Lithium Ion rechargeable 1 x Proprietary NP-FZ100 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: Software Suite CD-ROM Capture One Express (for Sony) free download; Sony Imaging Edge Remote, Viewer and Edit
OS Compatibility:   Windows, macOS
Miscellaneous
Notes & Features: