• 0.98 inch 285.7mm2
  • 4.6 megapixels
  • 28.00mm (35mm eq.)
  • APS-C 369.7mm2
  • 10.2 megapixels
  • ISO 100 - 3200
  • Detailed specifications
  • Sigma DP1
  • Sony Alpha DSLR-A300
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: DP1 DSLR-A300
Alternate Model Number(s):    
Camera Format: Mid-Sized SLR
Currently Manufactured: No No
Retail Price: $999.00 $800.00
Street Price:   $562.64
Date Available: 2008-03-31 2008-04-15
Tripod Mount: Yes Yes
Weight: 9.8 oz (278 g)
includes batteries 		20.5 oz (582 g)
Size: 4.5 x 2.3 x 2.0 in.
(113 x 60 x 50 mm) 		5.1 x 3.9 x 2.9 in.
(131 x 99 x 75 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CCD
Sensor Manufacturer: Foveon X3 Sony
Effective Megapixels: 4.6 10.2
Sensor Format: 0.98 inch APS-C
Sensor size: 285.66mm2 (20.70mm x 13.80mm) 369.72mm2 (23.7mm x 15.6mm)
Approximate Pixel Pitch: 7.84 microns 6.12 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 3:2, 16:9 3:2, 16:9
Color Filter Type: Full Color RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:   64
DxO Color Depth Score (bits):   22.5
DxO Dynamic Range Score (evs):   11.4
DxO Maximum Effective ISO Score (iso):   538
Image Capture
Image Resolution: 2640 x 1760 (4.6 MP, 3:2),
2640 x 1485 (3.9 MP, 16:9),
1872 x 1248 (2.3 MP, 3:2),
1312 x 880 (1.2 MP, Other) 		3872 x 2592 (10.0 MP, Other),
3872 x 2176 (8.4 MP, 16:9),
2896 x 1936 (5.6 MP, 3:2),
2896 x 1632 (4.7 MP, Other),
1920 x 1280 (2.5 MP, 3:2),
1920 x 1088 (2.1 MP, Other)
Image File Format: JPEG (EXIF 2.21), 12-bit RAW (.X3F) JPEG (EXIF 2.21), RAW, RAW+JPEG; (.ARW)
Continuous-mode frames/second: 3.8 3.0
Video Capture
Can take movies: Yes No
Movie Resolution: 320x240 (30)
Movie File Format: AVI  
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: n/a Sony Alpha (Minolta A)
Lens: Sigma Lens (6 Elements in 5 Groups) Sony 18-70mm f/3.5-5.6 DT SAL-1870
Focal Length (35mm equivalent): 28mm 27 - 105mm
Focal Length (actual): 16.6mm 18 - 70mm
Zoom Ratio: Non-Zoom 3.88x
Aperture Range: f/4.0 - 11 f/3.5 - 22 (W), f/5.6 - 36 (T)
Integrated ND Filter: No No
Normal Focus Range: 50 cm to Infinity
19.7 in to Infinity 		38 cm to Infinity
15.0 in to Infinity
Macro Focus Range: 30 cm to Infinity
11.8 in to Infinity 		 
Filter Thread: n/a 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes No
Digital Zoom Values: 3.0x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point contrast detection 9-point, center cross TTL phase detection with eye-start and "Quick AF" for Live View
Auto Focus Assist Light? No Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: LCD Optical / LCD
Viewfinder Type: Optional add-on type. SLR type; eye-level pentamirror, 95% coverage, 0.74x magnification
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.49x
Viewfinder Magnification (nominal/claimed):   0.74x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 2.7
Rear Display Resolution: 230,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom:    
Top Deck Display: No
Exposure
Maximum ISO (native):   3200
Minimum ISO (native):   100
ISO Settings: Auto (100 - 200), Flash (100 - 400), 100, 200, 400, 800 Auto, 100, 200, 400, 800, 1600, 3200
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Sunlight, Shade, Overcast, Incandescent, Fluorescent, Flash, Custom Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Color Temperature/Color Filter, Custom
Shutter Speed Range: 1/2000 - 15 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: Evaluative, center-weighted average, spot 40-segment Honeycomb Pattern, Center-weighted, Spot; (1200 zone metering in Live View mode)
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
Self Timer: 2 or 10 seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Anti red-eye, Auto, Fill-in, Slow Sync, Off Built-in Auto Popup: Auto, Fill-flash, Rear flash sync, Slow Sync, High Speed, Sync, Wireless off camera flash (with Flash HVL-F56AM, F36AM)
Flash Guide Number (ISO 100): 6.0 12.0 m / 39.4 ft.
Flash Range Description: ISO 200: 30cm to 2.1m Lens dependent
Max Flash Sync:    
Flash Exposure Compensation:   +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe (X Sync. Contact) Hot shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC CF1 / CF2 / Microdrive
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.X3F) RAW, RAW+JPEG; (.ARW)
Movie File Format: AVI  
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 No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: No Yes
Remote Control Type:   Optional Wired
Connections (extended): Audio out (monaural)  
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 5.70  
Cycle time for RAW shooting in single shot mode (seconds per frame): 6.47  
Buffer size for RAW shooting in single shot mode (frames): 7  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? Yes
JPEG shooting speed in burst mode (fps, max resolution): 3.8 3.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 3 Unlimited
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): 1.53 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.160 seconds  
Shutter lag (full AF, with flash): 1.71 seconds  
Shutter Lag (prefocused): 0.132 seconds  
Shutter Lag (notes): "Full AF" mode used.  
Startup Time: 3.9 seconds  
Play -> Record Time: 0.2 seconds  
Flash cycle time, full power: 8.2 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 250 shots  
Battery Life, Still (CIPA Rating OVF/EVF):   730 shots
Battery Life, Video:    
Battery Form Factor: Proprietary BP-31 Proprietary NP-FM500H
Usable Battery Types: Lithium-ion rechargeable Lithium Ion rechargeable
Batteries Included: 1 x Proprietary BP-31 Lithium-ion rechargeable 1 x Proprietary NP-FM500H Lithium Ion rechargeabl
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: SIGMA Photo Pro  
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: Optional accessories include: Optical View Finder VF-11, Hood Adapter HA-11, SAC-3 AC Adapter, Electronic Flash EF-140 DG 10MP version of the A350: Tilting 2.7" LCD with Live View; Quick AF during Live View (pentamirror Tilt mechanism directs light to a dedicated live view image sensor, enabling fast and responsive TTL phase-detection auto-focusing, even during live view.); Super SteadyShot IS; Anti-Dust; Dynamic Range Optimizer. $800 bundled with DT 18-70mm kit lens.