| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K-30
K-30 vs K-50 |
|
| Successor: |
Pentax K-70
K-50 vs K-70 |
|
| General | ||
| Model Number: | A57 | K-50 |
| Alternate Model Number(s): | ||
| Camera Format: | SLR | SLR |
| Currently Manufactured: | No | No |
| Retail Price: | $799.99 | $779.95 |
| Street Price: | $149.00 | |
| Date Available: | 2012-04-15 | 2013-07-15 |
| Tripod Mount: | Yes | Yes |
| Weight: |
29.2 oz
(828 g)
includes batteries, kit lens |
31.9 oz
(904 g)
includes batteries, kit lens |
| Size: |
5.2 x
3.8 x
3.2 in. (132 x 98 x 81 mm) |
5.1 x
3.8 x
2.8 in. (130 x 97 x 71 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | Sony |
| Effective Megapixels: | 16.1 | 16.3 |
| Sensor Format: | APS-C | APS-C |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 372.09mm2 (23.70mm x 15.70mm) |
| Approximate Pixel Pitch: | 4.82 microns | 4.81 microns |
| Focal Length Multiplier: | 1.5x | 1.5x |
| Aspect Ratio: | 3:2 | 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: | 75 | 79 |
| DxO Color Depth Score (bits): | 23.4 | 23.7 |
| DxO Dynamic Range Score (evs): | 13.0 | 13.0 |
| DxO Maximum Effective ISO Score (iso): | 785 | 1,120 |
| Image Capture | ||
| Image Resolution: |
4912 x 3264
(16.0 MP,
3:2), 4912 x 2760 (13.6 MP, 16:9), 3568 x 2368 (8.4 MP, Other), 3568 x 2000 (7.1 MP, 16:9), 2448 x 1624 (4.0 MP, Other), 2448 x 1376 (3.4 MP, 16:9), 12416 x 1856 (23.0 MP, Other), 5536 x 2160 (12.0 MP, Other), 8192 x 1856 (15.2 MP, Other), 3872 x 2160 (8.4 MP, Other), 7152 x 1080 (7.7 MP, Other), 4912 x 1080 (5.3 MP, Other), 1920 x 1080 (2.1 MP, 16:9) |
4928 x 3264
(16.1 MP,
Other), 4224 x 2816 (11.9 MP, 3:2), 3456 x 2304 (8.0 MP, 3:2), 2688 x 1792 (4.8 MP, 3:2) |
| Image File Format: | JPEG, MPO, RAW (12-bit ARW 2.3), RAW+JPEG | JPEG (EXIF 2.3), 12-bit RAW (.DNG), RAW+JPEG |
| Continuous-mode frames/second: | 10.0 | 6.0 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (60p(PS)/60i(FX)/60i(FH)/24p(FX)/24p(FH))
1440x1080 (30p) 640x480 (30p) |
1920x1080 (30p/25p/24p)
1280x720 (60p/50p/30p/25p/24p) 640x480 (30p/25p/24p) |
| Movie File Format: | AVCHD 2.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) | MOV MPEG-4 AVC (H.264) with monaural audio |
| Composite Video Out: | No | Yes |
| NTSC/PAL Switchable Video: | n/a | Yes |
| Video Usable as Viewfinder: | n/a | No |
| HD Video Out: | Yes | No |
| HD Video Connection: | 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-DA L 18-55mm f/3.5-5.6 AL WR; 11 elements in 8 groups, 6 bladed diaphragm |
| Focal Length (35mm equivalent): | 27 - 83mm | 27 - 83mm |
| Focal Length (actual): | 18 - 55mm | 18 - 55mm |
| Zoom Ratio: | 3.06x | 3.06x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - 36 (T) | f/3.5 - f/22 (wide) / f/5.6 - f/38 (tele) |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
25 cm to Infinity 9.8 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: | Yes | No |
| Digital Zoom Values: | Up to 2x Precision, Up to 2x Clear Image Zoom, 1.4x (8.4MP) or 2.0x (4MP) Smart Zoom | n/a |
| 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 | Phase Detect:: SAFOX IXi+, 11 point (9 cross type focus point in the center), with light wavelength sensor and diffraction lens; Live View: Contrast detection AF (face detection, tracking, select, spot) |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | EVF / LCD | Optical / LCD |
| Viewfinder Type: | EVF type; 1.1cm (0.43") 1.44M/1.25M-dot LCD (480K/418K-dot time-multiplexed RGB), 100% coverage, 1.04x/0.97x magnification, 23.1/25.2mm eyepoint, -4 to +3 diopter | SLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to +1.5 diopter, Natural-Bright-Matte III focusing screen (interchangeable) |
| Focus Peaking: | Yes | Yes |
| EVF Resolution: | n/a | |
| Viewfinder Magnification (35mm equivalent): | 0.69x | 0.61x |
| Viewfinder Magnification (nominal/claimed): | 1.04x | 0.92x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.0 |
| Rear Display Resolution: | 921,600 dots (307,200 px) | 921,600 dots (307,200 px) |
| Touchscreen: | No | No |
| Articulating Screen: | Yes | No |
| Tilt Swivel Screen: | No | |
| Selfie Screen: | No | |
| Max Playback Zoom: | 13.6x | 16.0x |
| Top Deck Display: | No | No |
| Exposure | ||
| Maximum ISO (native): | 16000 | 51200 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto (100-3200), 100 - 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 (4), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation) | Auto, Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, CTE, 3 Manual and 3 Kelvin temperature presets |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/6000 - 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: 77-segment, 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, SportsAction, Macro, Landscape, Sunset, Night scene, Hand-held Twilight (6 shot layering), Night Portrait; Sweep Panorama, 3D Sweep Panorama, Auto Portrait Framing, Picture Effect (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), Dynamic Range Optimizer (Off/Auto/Level), | Sensitivity Priority, Shutter and Aperture Priority, Scene (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR (JPG), Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum); Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Color; Dynamic range adjustment (Highlight, Shadow); HDR: Auto, HDR 1, HDR 2, HDR 3 |
| 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, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off | P-TTL: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync |
| Flash Guide Number (ISO 100): | 10.0 m / 32.8 ft. | 12.0 m / 39.4 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: | Hot shoe | Hot Shoe |
| Built-In Wireless Flash Control: | Full TTL exposure | |
| Image Storage | ||
| Usable Memory Types: | MS PRO Duo / SD / SDHC / SDXC | SD / SDHC / SDXC |
| UHS Support: | ||
| Other Memory: | ||
| Dual Card Slots: | No | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW (12-bit ARW 2.3), RAW+JPEG | 12-bit RAW (.DNG), RAW+JPEG |
| Movie File Format: | AVCHD 2.0/MP4 (Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC) | MOV MPEG-4 AVC (H.264) with monaural audio |
| Included Memory: | 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: | No | No |
| 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 Wireless or Wired | Optional Wired or IR |
| Connections (extended): | Type-C Mini HDMI (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack, DC Input | Wired remote port |
| 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): | 10.0 | 6.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 25 | 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): | ||
| 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): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 550 shots | 480 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary | Proprietary; optional D-BH109 AA Battery Holder |
| Usable Battery Types: | NP-FM500H Lithium-ion rechargeable | D-LI109 Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary NP-FM500H Lithium-ion rechargeable | 1 x Proprietary D-LI109 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | No | |
| Software | ||
| Included Software: | Sony Software CD-ROM | Software CDROM (SILKYPIX Developer Studio for PENTAX included) |
| OS Compatibility: | Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +) | |
| Miscellaneous | ||
| Notes & Features: | SteadyShot INSIDE Sensor-shift Image Stabilization (up to 4.5 EV correction), Full HD 1080p60 Video, Up to 12 fps Burst Mode (Tele-zoom Continuous Advance Priority AE), Enhanced Object Tracking AF, 2x Clear Image Digital Zoom, New Auto Portrait Framing, Tilting 921K-dot LCD, 1.44M-dot EVF. | Replaces K-30: tweaked 16MP sensor, tweaked PRIME M processor, maximum ISO now 51,200, controllable Eye-Fi connection, new WR L kit lenses. Available in 120 colors (20 base colors, 6 grip colors). |
