• APS-C 369.7mm2
  • 10.2 megapixels
  • ISO 100 - 3200
  • APS-C 369.7mm2
  • 12.4 megapixels
  • ISO 200 - 12,800
  • Detailed specifications
  • Sony Alpha DSLR-A300
  • Pentax K-r
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Pentax K-x
K-x vs K-r
Successor:    
General
Model Number: DSLR-A300 K-r
Alternate Model Number(s):    
Camera Format: SLR SLR
Currently Manufactured: No No
Retail Price: $800.00 $849.95
Street Price: $562.64  
Date Available: 2008-04-15 2010-10-15
Tripod Mount: Yes Yes
Weight: 20.5 oz (582 g) 30.1 oz (852 g)
includes batteries, kit lens
Size: 5.1 x 3.9 x 2.9 in.
(131 x 99 x 75 mm)
4.9 x 3.8 x 2.7 in.
(125 x 97 x 68 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 10.2 12.4
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 369.72mm2 (23.7mm x 15.6mm)
Approximate Pixel Pitch: 6.12 microns 5.53 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2, 16:9 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 64 72
DxO Color Depth Score (bits): 22.5 22.9
DxO Dynamic Range Score (evs): 11.4 12.4
DxO Maximum Effective ISO Score (iso): 538 750
Image Capture
Image Resolution: 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)
4288 x 2848 (12.2 MP, Other),
3936 x 2624 (10.3 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1728 x 1152 (2.0 MP, 3:2)
Image File Format: JPEG (EXIF 2.21), RAW, RAW+JPEG; (.ARW) JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG)
Continuous-mode frames/second: 3.0 5.6
Video Capture
Can take movies: No Yes
Movie Resolution: 1280x720 (25)
640x480 (25)
Movie File Format:   AVI (Motion JPEG)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No No
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Pentax K (KA/KAF/KAF2/3)
Lens: Sony 18-70mm f/3.5-5.6 DT SAL-1870 smc Pentax DA L 18-55mm f/3.5-5.6 AL
Focal Length (35mm equivalent): 27 - 105mm 27 - 84mm
Focal Length (actual): 18 - 70mm 18 - 55mm
Zoom Ratio: 3.88x 3.00x
Aperture Range: f/3.5 - 22 (W), f/5.6 - 36 (T) f/3.5 - 22 (W), f/5.6 - 38 (T)
Integrated ND Filter: No No
Normal Focus Range: 38 cm to Infinity
15.0 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 52.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point, center cross TTL phase detection with eye-start and "Quick AF" for Live View SAFOX IX TTL phase-detect 11-point (9 cross) AF: 11 pt auto, 5 pt auto, AF pt select, center/spot
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / LCD
Viewfinder Type: SLR type; eye-level pentamirror, 95% coverage, 0.74x magnification SLR type; eye-level pentamirror, ~96% coverage, ~0.85x mag., -2.5 to +1.5 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent): 0.49x 0.57x
Viewfinder Magnification (nominal/claimed): 0.74x 0.85x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 921,000 dots
Touchscreen: No No
Articulating Screen: Yes No
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom:   16.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 3200 12800
Minimum ISO (native): 100 200
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200 Auto: 200-12800 (1, 1/2, 1/3 EV steps), up to 1600 in Bulb, expandable to 100-25600; Manual: 200-12800 (1, 1/2, 1/3 EV steps), up to 1600 in Bulb, expandable to 100-25600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Color Temperature/Color Filter, Custom Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, CTE, Manual
Shutter Speed Range: 1/4000 - 30 sec 1/6000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 40-segment Honeycomb Pattern, Center-weighted, Spot; (1200 zone metering in Live View mode) 16-segment Multi, Center-weighted, 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 action, Sunset, Night portrait, Night view Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Standard Flash Off), Scene (Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage Lighting [JPG], Night Snap [JPG], Night Scene HDR [JPG]), Sensitivity Priority
Self Timer: 2 or 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Built-in Auto Popup: Auto, Fill-flash, Rear flash sync, Slow Sync, High Speed, Sync, Wireless off camera flash (with Flash HVL-F56AM, F36AM) On, off, redeye, slow sync, slow sync w redeye, slow sync w trailing curtain, wireless
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 12.0 m / 39.4 ft.
Flash Range Description: Lens dependent Depends on lens
Max Flash Sync:   1/180
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Hot shoe Hot Shoe
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: CF1 / CF2 / Microdrive SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW, RAW+JPEG; (.ARW) 12-bit RAW (.PEF, .DNG)
Movie File Format:   AVI (Motion JPEG)
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 2.0 High Speed
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wired Optional IR
Connections (extended):   IrSimple infrared data transfer
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.31
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.31
Buffer size for RAW shooting in single shot mode (frames):   17
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): 3.0 5.6
Buffer size for JPEG shooting in burst mode (frames, max resolution): Unlimited 30
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):   0.11 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.098 seconds
Shutter lag (full AF, with flash):   0.15 seconds
Shutter Lag (prefocused):   0.097 seconds
Shutter Lag (notes):   OVF: Full AF lag, Auto-Area: 0.118s Live View: Contrast-Detect AF: 1.049s Phased-Detect AF: 1.197s Prefocused: 0.335s
Startup Time:   0.3 seconds
Play -> Record Time:   0.3 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 730 shots 470 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary D-LI109
Usable Battery Types: Lithium Ion rechargeable Lithium-ion rechargeable or 4 AAs with D-BH109
Batteries Included: 1 x Proprietary NP-FM500H Lithium Ion rechargeabl 1 x Proprietary D-LI109 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 CD-ROM S-SW110
OS Compatibility:   Windows XP/Vista/7, MacOS-X 10.3+
Miscellaneous
Notes & Features: 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. Sensor-shift shake reduction, new 11-point SAFOX IX AF system with viewfinder focus indicators, 3-inch hi-res LCD, 6fps burst mode, 720p movies, dual power source (lithium-ion battery pack or 4 AAs with optional D-BH109 battery holder), improved in-camera HDR image capture including a Night Scene HDR mode. Available in Traditional Black, Classic White and Red.