• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 16,000
  • APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Sony Alpha SLT-A58
  • Pentax K-3
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor: Sony A68
A58 vs A68
Pentax K-3 II
K-3 vs K-3 II
General
Model Number: A58 K-3
Alternate Model Number(s):    
Camera Format: SLR Pro SLR
Currently Manufactured: No No
Retail Price: $600.00 $1149.95
Street Price: $598.00 $699.00
Date Available: 2013-04-15 2013-11-01
Tripod Mount: Yes Yes
Weight: 25.8 oz (731 g)
includes batteries, kit lens
43.7 oz (1,240 g)
includes batteries, kit lens
Size: 5.1 x 3.8 x 3.1 in.
(129 x 96 x 78 mm)
5.2 x 3.9 x 3.1 in.
(132 x 100 x 77 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 20.1 24.4
Sensor Format: APS-C APS-C
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.31 microns 3.91 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 74 80
DxO Color Depth Score (bits): 23.3 23.7
DxO Dynamic Range Score (evs): 12.5 13.4
DxO Maximum Effective ISO Score (iso): 753 1,216
Image Capture
Image Resolution: 5456 x 3632 (19.8 MP, 3:2),
5456 x 3064 (16.7 MP, 16:9),
3872 x 2576 (10.0 MP, 3:2),
3872 x 2176 (8.4 MP, 16:9),
2736 x 1824 (5.0 MP, 3:2),
2736 x 1536 (4.2 MP, 16:9),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other)
6016 x 4000 (24.1 MP, 3:2),
4608 x 3072 (14.2 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
Image File Format: JPEG, RAW (12-bit ARW 2.3), RAW+JPEG JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG
Continuous-mode frames/second: 4.9 7.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i or 24p (24/​17Mbps))
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
1920x1080 (60i/​50i/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
Movie File Format: AVCHD / MP4; Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC, stereo MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record
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) Pentax K (KA/KAF/KAF2/3)
Lens: Sony 18-55mm f/3.5-5.6 DT SAM smc Pentax 18-135mm f/3.5-5.6 ED AL [IF] DC DA WR
Focal Length (35mm equivalent): 27 - 83mm 27 - 203mm
Focal Length (actual): 18 - 55mm 18 - 135mm
Zoom Ratio: 3.06x 7.50x
Aperture Range: f/3.5 - 22 (W), f/5.6 - 36 (T) f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele)
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
40 cm to Infinity
15.7 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 62.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values: Up to 4x; up to 2x Clear Image Digital Zoom  
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide (auto, 15 points), Zone, Spot, Local; Enhanced Object Tracking; Eye Start AF SAFOX 11 TTL phase-matching - 27 point (25 cross type focus points in the center)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF type; 1/2-inch, 1.44M-dot OLED Tru-Finder, 100% coverage, 0.88x magnification (0.57x 35mm eq.), 26.5mm from the eyepiece lens / 23mm from the eyepiece frame eye point, -4.0 to +4.0 diopter SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., TBDmm eyepoint, -2.5 to +1.5 diopter
Focus Peaking: Yes Yes
EVF Resolution: 1,440,000 dots n/a
Viewfinder Magnification (35mm equivalent): 0.57x 0.63x
Viewfinder Magnification (nominal/claimed): 0.88x 0.95x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.2
Rear Display Resolution: 460,800 dots (153,600 px) 1,036,800 dots (345,600 px)
Touchscreen: No No
Articulating Screen: Yes No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 15.0x 16.0x
Top Deck Display: No Yes
Exposure
Maximum ISO (native): 16000 51200
Minimum ISO (native): 100 100
ISO Settings: Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800, 16000; (Multi-frame NR mode up to ISO 25600) Auto, 100-51200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation) Auto, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings)
Shutter Speed Range: 1/4000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot TTL open-aperture: Multi-segment with 86K-pixel RGB sensor, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Scene Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night View, Handheld Twilight; Picture Effects: Posterization (Color, B/W), Pop Color, Retro Photo, Partial Color (R,G,B,Y), High Contrast Monochrome, Toy Camera, Soft High-key, Soft Focus, HDR Painting, Rich-tone Monochrome, Miniature; Sweep Panorama, Anti Motion Blur, Multi Frame Noise Reduction Sensitivity Priority, Shutter and Aperture Priority; Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3.
Self Timer: 2 or 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Fill-flash, Slow Sync., Rear Sync., Hi-speed sync., Red-eye reduction (on/off selectable for Auto flash and fill-flash mode), Wireless, Off P-TTL, Red-eye reduction, Slow-speed sync, Rear Curtain Sync. High-Speed Sync and Wireless Sync also available with PENTAX dedicated external flash.
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 13.0 m / 42.7 ft.
Flash Range Description: Lens dependent Depends on lens
Max Flash Sync: 1/160 1/180
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Multi Interface Hot shoe Hot Shoe, PC Sync socket
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: No UHS support UHS-I
Other Memory:    
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (12-bit ARW 2.3), RAW+JPEG 14-bit RAW (.PEF, .DNG), RAW+JPEG
Movie File Format: AVCHD / MP4; Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC, stereo MPEG-4 AVC/H.264 (MOV), Motion JPEG (AVI) for interval movie record
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 3.0 Super Speed
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired RM-VPR1 Optional Wired or IR
Connections (extended): Type-D Micro HDMI, DC Input, 3.5mm Stereo Micophone Jack, Multi/Micro USB (remote) Micro (Type D) HMDI, USB 3.0 Micro B, DC input, wired remote jack, 3.5mm external stereo mic jack, 3.5mm stereo headphone jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.51 0.79
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.55 0.64
Buffer size for RAW shooting in single shot mode (frames): 2 Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.57 0.69
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 4.9 7.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): 8 75
RAW shooting speed in burst mode (fps): 4.9 7.1
Buffer size for RAW shooting in burst mode (frames): 6 24
RAW+JPEG shooting speed in burst mode (fps): 4.9 7.1
Buffer Size for RAW+JPEG shooting in burst mode (frames): 5 25
Shutter lag (full AF, wide/mid): 0.13 seconds 0.14 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):   1.01 seconds
Shutter lag (prefocused, live view - DSLR):   0.226 seconds
Shutter Lag (manual focus): 0.082 seconds 0.097 seconds
Shutter lag (full AF, with flash): 0.33 seconds 0.33 seconds
Shutter Lag (prefocused): 0.054 seconds 0.096 seconds
Shutter Lag (notes): Full Autofocus Shutter Lag, Wide-area Mode = 0.139s Full AF lag, Wide-area mode, OVF = 0.157s Live View: Center mode AF lag = 1.014s Wide-area mode AF lag = 1.005s Prefocused = 0.226s
Startup Time: 1.9 seconds 0.9 seconds
Play -> Record Time: 1.1 seconds 0.6 seconds
Flash cycle time, full power: 2.1 seconds 2.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 700 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 690 shots 560 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary D-LI90
Usable Battery Types: NP-FM500H Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H Lithium-ion rechargeable 1 x Proprietary D-LI90 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No No
Software
Included Software: PlayMemories Home, Image Data Converter 4 Software CD-ROM S-SW140
OS Compatibility: Windows XP SP3/Vista SP2/7 SP1/8; Mac OS X v10.5 or later. (Software is Windows only.)  
Miscellaneous
Notes & Features: New 20.1MP Exmor APS HD CMOS sensor, SteadyShot INSIDE image stabilization, 2.7" 406K-dot tilting LCD, OLED Tru-Finder EVF, 5fps full-resolution burst mode (up to 8fps in Tele-zoom Continuous Advance Priority AE mode), new Lock-on autofocus, Full HD 1080i60 movies, Multi Interface Hot Shoe, new area-specific noise reduction. U.S. availability and pricing TBD. Image stabilization system also acts as a selectable AA filter, 8.3 fps full-res burst mode, new 27-point AF system, new 86,000 pixel RGB metering system, Full HD video up to 60i with H.264 encoding, dual SD card slots, freeze-proof, dust-proof, weather-resistant magnesium alloy construction, USB 3.0 port.