| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: | ||
| Successor: | ||
| General | ||
| Model Number: | A55 | MX-1 |
| Alternate Model Number(s): | SLT-A55 (w/o GPS) | |
| Camera Format: | SLR | Mid-Sized |
| Currently Manufactured: | No | No |
| Retail Price: | $849.99 | $499.95 |
| Street Price: | $733.99 | $399.00 |
| Date Available: | 2010-10-15 | 2013-02-15 |
| Tripod Mount: | Yes | Yes |
| Weight: |
25.6 oz
(727 g)
includes batteries, kit lens |
14.1 oz
(399 g)
includes batteries |
| Size: |
4.9 x
3.6 x
3.3 in. (124 x 92 x 85 mm) |
4.8 x
2.4 x
2.0 in. (122 x 61 x 51 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | BSI CMOS |
| Effective Megapixels: | 16.2 | 12.0 |
| Sensor Format: | APS-C | 1/1.7 inch |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 43.32mm2 (7.6mm x 5.7mm) |
| Approximate Pixel Pitch: | 4.82 microns | 1.90 microns |
| Focal Length Multiplier: | 1.5x | n/a |
| Aspect Ratio: | 3:2, 16:9 | 4:3 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | Yes |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 73 | 49 |
| DxO Color Depth Score (bits): | 23.0 | 20.4 |
| DxO Dynamic Range Score (evs): | 12.4 | 11.3 |
| DxO Maximum Effective ISO Score (iso): | 818 | 208 |
| 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), 8192 x 1856 (15.2 MP, Other), 2160 x 5536 (12.0 MP, Other), 2160 x 3872 (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) |
4000 x 3000
(12.0 MP,
4:3), 3984 x 2656 (10.6 MP, 3:2), 3968 x 2232 (8.9 MP, 16:9), 3072 x 2304 (7.1 MP, 4:3), 3072 x 2048 (6.3 MP, 3:2), 3072 x 1728 (5.3 MP, 16:9), 2592 x 1728 (4.5 MP, 3:2), 2560 x 1440 (3.7 MP, 16:9), 2048 x 1152 (2.4 MP, 16:9) |
| Image File Format: | JPEG, RAW (ARW 2.2), RAW+JPEG | JPEG (Exif 2.3), 12-bit DNG RAW |
| Continuous-mode frames/second: | 9.0 | 4.0 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (60i/50i)
1440x1080 (30/25) 640x480 (30/25) |
1920x1080 (30p)
1280x720 (60p/30p) 640x480 (120p) |
| Movie File Format: | AVCHD, MP4 | MOV (MPEG－4 AVC/H.264) with stereo sound |
| Composite Video Out: | No | Yes |
| NTSC/PAL Switchable Video: | n/a | Yes |
| Video Usable as Viewfinder: | n/a | |
| HD Video Out: | Yes | Yes |
| HD Video Connection: | HDMI | HDMI |
| Lens & Optics | ||
| Lens Mount: | Sony Alpha (Minolta A) | n/a |
| Lens: | Sony 18-55mm f/3.5-5.6 DT SAM | smc Pentax Lens, 11 elements in 8 groups (4 aspherical elements) |
| Focal Length (35mm equivalent): | 27 - 83mm | 28 - 112mm |
| Focal Length (actual): | 18 - 55mm | 6 - 24mm |
| Zoom Ratio: | 3.00x | 4.00x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - ?? (T) | f/1.8 (W) / f/2.5 (T) - f/8 |
| Integrated ND Filter: | No | Yes |
| Normal Focus Range: |
40 cm to Infinity 15.6 in to Infinity |
|
| Macro Focus Range: |
1 -
20 cm 0.4 - 7.9 in |
|
| Filter Thread: | 55.0mm | n/a |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| Digital Zoom: | No | Yes |
| Digital Zoom Values: | n/a | Up to 1.95x |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. | Contrast Detection: Auto, Spot, Tracking , AF Select (25 Points), Infinity Landscape, Manual Focus, Pan Focus, AF Point Switching |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | EVF / LCD | No / LCD |
| Viewfinder Type: | EVF type; 1.1cm (0.43") 1,152Kdots, 100% coverage, 1.10x mag., 19mm eyepoint, -4 to +4 diopter | |
| Focus Peaking: | No | No |
| EVF Resolution: | n/a | |
| Viewfinder Magnification (35mm equivalent): | 0.73x | |
| Viewfinder Magnification (nominal/claimed): | 1.10x | |
| Display | ||
| Eye-level Viewfinder: | Yes | No |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.0 |
| Rear Display Resolution: | 921,600 dots | 921,000 dots (307,000 px) |
| Touchscreen: | No | No |
| Articulating Screen: | Yes | Yes |
| Tilt Swivel Screen: | ||
| Selfie Screen: | ||
| Max Playback Zoom: | 11.8x | 10.0x |
| Top Deck Display: | No | |
| Exposure | ||
| Maximum ISO (native): | 12800 | 12800 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600) | Auto (100-12800 with selectable upper limit), 100-12800 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation) | Auto, Daylight, Shade, Cloudy, Fluorescent light (D:Daylight Color, N:Daylight White, W:Cool White, L:Warm White),Tungsten, Flash |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/8000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 2.0EV in 0.3EV steps | +/- 2.0EV in 0.3EV steps |
| Metering Modes: | 1200-zone Evaluative, Center-weighted, Spot | Multi-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, Landscape, Macro, Sports action, Sunset, Night portrait, Night view, Hand-held Twilight, Sweep Panorama (2D/3D) | Natural Skin Tone, Handheld Night Snap (5M), Night Scene Portrait, Night Scene, Digital Panorama (2M per frame), High Speed Movie (VGA, 120 FPS capture, 30 FPS playback), Time Lapse Movie, Landscape, Blue Sky, Sunset, Flower, Digital SR (ISO 3200-6400 5M), Kids, Pet, Portrait, Food, Fireworks, Surf & Snow, Sport, Fisheye, Sketch, Miniature Filter, Text, Frame Composite (3M); Digital filters (capture): Movie (B&W, Sepia, Fisheye, Miniature, Sketch); Dynamic Range adjustment: Yes (shadow, highlight) |
| Self Timer: | 2 or 10 seconds | 2 or 10; 3 shots after 10 seconds |
| Time Lapse (intervalometer): | No | |
| 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 | Auto, Flash Off, Flash On, Red-eye, Slow-speed synchro, Slow-speed+Red-eye, Trailing Curtain Sync |
| Flash Guide Number (ISO 100): | 10.0 m / 32.8 ft. | n/a |
| Flash Range Description: | Lens dependent | 1.31 - 40’ (wide, auto ISO), 1.31 - 29’ (tele, auto ISO) |
| Max Flash Sync: | 1/160 | |
| Flash Exposure Compensation: | +/- 2.0 EV in 0.3EV steps | -2 to +1 EV in 0.3EV steps |
| External Flash Connection: | Hot shoe | n/a |
| 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 (ARW 2.2), RAW+JPEG | 12-bit DNG RAW |
| Movie File Format: | AVCHD, MP4 | MOV (MPEG－4 AVC/H.264) with stereo sound |
| Included Memory: | 75.3 MB | |
| Included Memory Type: | Internal | |
| Connectivity | ||
| Built-In Wi-Fi: | No | No |
| NFC: | No | |
| Bluetooth: | No | No |
| Built-In GPS: | Yes | No |
| Microphone Jack: | Yes | 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 IR |
| Connections (extended): | Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack | Micro (Type D) HDMI |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.52 | 1.43 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.52 | 1.91 |
| Buffer size for RAW shooting in single shot mode (frames): | 28 | 7 |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | ||
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 9.0 | 4.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 32 | 10 |
| 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): | 0.22 seconds | 0.24 seconds |
| Shutter lag (full AF, tele): | 0.25 seconds | |
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.214 seconds | 0.178 seconds |
| Shutter lag (full AF, with flash): | 0.48 seconds | 0.30 seconds |
| Shutter Lag (prefocused): | 0.103 seconds | 0.016 seconds |
| Shutter Lag (notes): | Full AF, wide-area mode = 0.218s | |
| Startup Time: | 0.9 seconds | 2.2 seconds |
| Play -> Record Time: | 0.6 seconds | 1.4 seconds |
| Flash cycle time, full power: | 3.7 seconds | 4.8 seconds |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | 290 shots | |
| Battery Life, Still (CIPA Rating OVF/EVF): | 330 shots | |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary NP-FW50 | Proprietary D-Li106 |
| Usable Battery Types: | Lithium-ion rechargeable | Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary NP-FW50 Lithium-ion rechargeable | 1 x Proprietary D-Li106 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 (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) | Software CD-ROM including SILKYPIX Developer Studio 3.0 LE for PENTAX RICOH IMAGING RAW development software |
| OS Compatibility: | Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +) | |
| Miscellaneous | ||
| Notes & Features: | SteadyShot INSIDE Image Stabilization, Articulating LCD, 1080i HD Video, Multi-frame NR, Hand-held Twilight, Auto HDR, D-Range Optimizer, 2D/3D Sweep Panorama, Smile Shutter, DOF Preview, 10fps Burst Mode, Built-in GPS. SLT-A55 is identical but without GPS. | Image Stabilization: Still: Sensor-Shift SR, Digital SR (ISO 100-12800), Dual (SR & Pixel Track SR); Movie: Movie Shake Reduction Mode (Movie SR); (Maximum effect of 3 stops using Sensor-Shift SR); 12-bit RAW (DNG) support, Dual-axial digital level, Dual remote control sensors. Available in black or two-tone silver and black. |
