| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: | ||
| Successor: | ||
| General | ||
| Model Number: | A55 | NX1 |
| Alternate Model Number(s): | SLT-A55 (w/o GPS) | |
| Camera Format: | SLR | Compact System Camera |
| Currently Manufactured: | No | No |
| Retail Price: | $849.99 | $2799.99 |
| Street Price: | $733.99 | $1,797.00 |
| Date Available: | 2010-10-15 | 2014-11-28 |
| Tripod Mount: | Yes | Yes |
| Weight: |
25.6 oz
(727 g)
includes batteries, kit lens |
45.5 oz
(1,290 g)
includes batteries, kit lens |
| Size: |
4.9 x
3.6 x
3.3 in. (124 x 92 x 85 mm) |
5.5 x
4.0 x
2.6 in. (139 x 102 x 66 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | Samsung |
| Effective Megapixels: | 16.2 | 28.2 |
| Sensor Format: | APS-C | APS-C |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 368.95mm2 (23.50mm x 15.70mm) |
| Approximate Pixel Pitch: | 4.82 microns | 3.63 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 | None |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | No |
| On-Sensor Phase Detect: | No | Yes |
| DxO Sensor Score: | 73 | 83 |
| DxO Color Depth Score (bits): | 23.0 | 24.2 |
| DxO Dynamic Range Score (evs): | 12.4 | 13.2 |
| DxO Maximum Effective ISO Score (iso): | 818 | 1,363 |
| 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) |
6480 x 4320
(28.0 MP,
3:2), 4560 x 3040 (13.9 MP, 3:2), 3264 x 2176 (7.1 MP, 3:2), 2112 x 1408 (3.0 MP, 3:2), 6480 x 3648 (23.6 MP, 16:9), 4608 x 2592 (11.9 MP, 16:9), 3328 x 1872 (6.2 MP, 16:9), 2048 x 1152 (2.4 MP, 16:9), 4320 x 4320 (18.7 MP, 1:1), 3088 x 3088 (9.5 MP, 1:1), 2160 x 2160 (4.7 MP, 1:1), 1408 x 1408 (2.0 MP, 1:1) |
| Image File Format: | JPEG, RAW (ARW 2.2), RAW+JPEG | JPEG, MPO, RAW (.SRW), RAW+JPEG |
| Continuous-mode frames/second: | 9.0 | 15.2 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (60i/50i)
1440x1080 (30/25) 640x480 (30/25) |
4096x2160 (24p)
3840x2160 (30p/24p) 1920x1080 (60p/30p/24p) 1280x720 (60p/30p) 640x480 (60p/30p) 1920x1080 (120p) 1280x720 (120p) 640x480 (120p) |
| Movie File Format: | AVCHD, MP4 | MP4 (Video: HEVC (H.265) / Sound: AAC) |
| 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) | Samsung NX |
| Lens: | Sony 18-55mm f/3.5-5.6 DT SAM | Samsung 16-50mm f/2-2.8 S ED OIS NX |
| Focal Length (35mm equivalent): | 27 - 83mm | 25 - 77mm |
| Focal Length (actual): | 18 - 55mm | 16 - 50mm |
| Zoom Ratio: | 3.00x | 3.13x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - ?? (T) | f/2.0 - 22 (W), f/2.8 - 22 (T); 9-blade (rounded) aperture |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
30 cm to Infinity 11.8 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | 55.0mm | 72.0mm |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | Yes |
| Digital Zoom: | No | Yes |
| Digital Zoom Values: | n/a | Up to 2x Intelli-Zoom |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. | Hybrid contrast/phase-detect AF: 205-point PDAF (153 cross-point type) + 209-point CDAF |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | EVF / LCD | EVF / OLED |
| Viewfinder Type: | EVF type; 1.1cm (0.43") 1,152Kdots, 100% coverage, 1.10x mag., 19mm eyepoint, -4 to +4 diopter | OLED EVF with eye sensor; XGA (1024x768) 2,359K dots; 100% Field of view; 1.04x Magnification (50mm eq. lens); 21.0mm eyepoint; -4 to +2 diopter |
| Focus Peaking: | No | Yes |
| EVF Resolution: | 2,359,296 dots (786,432 pixels) | |
| Viewfinder Magnification (35mm equivalent): | 0.73x | 0.69x |
| Viewfinder Magnification (nominal/claimed): | 1.10x | 1.04x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.0 |
| Rear Display Resolution: | 921,600 dots | 1,036,800 dots (345,600 px) |
| Touchscreen: | No | Yes |
| Articulating Screen: | Yes | Yes |
| Tilt Swivel Screen: | No | |
| Selfie Screen: | No | |
| Max Playback Zoom: | 11.8x | |
| Top Deck Display: | No | Yes |
| Exposure | ||
| Maximum ISO (native): | 12800 | 25600 |
| 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 - 25600 (1 or 1/3EV steps); 51200 (extended) |
| 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, Cloudy, Fluorescent (W, N, D), Tungsten, Auto+Tungsten, Flash, Custom, K (Manual); Micro Adjustment each 7 steps in Amber/Blue and Green/Magenta axes |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/8000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 2.0EV in 0.3EV steps | +/- 5.0EV in 0.3EV steps |
| Metering Modes: | 1200-zone Evaluative, Center-weighted, Spot | Multi (221 segments), 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) | Action Freeze, Beauty Face, Fireworks, Landscape, Light Trace, Multi-Exposure, Night, Panorama (Live), Rich Tone (HDR), Samsung Auto Shutter, Silhouette, Sunset, Waterfall; Smart Range+, HDR (Auto) |
| Self Timer: | 2 or 10 seconds | 2-30 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 | Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off |
| Flash Guide Number (ISO 100): | 10.0 m / 32.8 ft. | 11.0 m / 36.1 ft. |
| Flash Range Description: | Lens dependent | Lens dependent; GN=11 (ISO 100, m) |
| Max Flash Sync: | 1/160 | 1/250 |
| Flash Exposure Compensation: | +/- 2.0 EV in 0.3EV steps | +/- 3.0 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: | MS PRO Duo / SD / SDHC / SDXC | SD / SDHC / SDXC |
| UHS Support: | UHS-II | |
| Other Memory: | ||
| Dual Card Slots: | No | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW (ARW 2.2), RAW+JPEG | RAW (.SRW), RAW+JPEG |
| Movie File Format: | AVCHD, MP4 | MP4 (Video: HEVC (H.265) / Sound: AAC) |
| Included Memory: | No memory included | |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | Yes |
| NFC: | Yes | |
| Bluetooth: | No | Yes |
| Built-In GPS: | Yes | No |
| Microphone Jack: | Yes | Yes |
| Headphone Jack: | No | Yes |
| External Connections: | USB 2.0 High Speed | USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi |
| PictBridge Compliant: | Yes | No |
| DPOF Compliant: | Yes | No |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional Wireless or Wired | Wi-Fi live view; optional wired |
| Connections (extended): | Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack | Wi-Fi (IEEE 802.11b/g/n/ac) with NFC; Bluetooth; Expansion port for grip; Mult-function USB port compatible with wired remote |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.52 | 0.41 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.52 | |
| Buffer size for RAW shooting in single shot mode (frames): | 28 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | 0.42 | |
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 9.0 | 15.2 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 32 | 53 |
| RAW shooting speed in burst mode (fps): | 15.1 | |
| Buffer size for RAW shooting in burst mode (frames): | 22 | |
| RAW+JPEG shooting speed in burst mode (fps): | 15.2 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 20 | |
| Shutter lag (full AF, wide/mid): | 0.22 seconds | 0.20 seconds |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.214 seconds | 0.079 seconds |
| Shutter lag (full AF, with flash): | 0.48 seconds | 0.29 seconds |
| Shutter Lag (prefocused): | 0.103 seconds | 0.055 seconds |
| Shutter Lag (notes): | Full AF, wide-area mode = 0.218s | Full AF lag, Single-area AF mode, EFC shutter enabled = 0.202s |
| Startup Time: | 0.9 seconds | 0.7 seconds |
| Play -> Record Time: | 0.6 seconds | 0.7 seconds |
| Flash cycle time, full power: | 3.7 seconds | 3.7 seconds |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | 500 shots | |
| Battery Life, Still (CIPA Rating OVF/EVF): | 330 shots | 500 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary NP-FW50 | Proprietary BP-1900 |
| Usable Battery Types: | Lithium-ion rechargeable | 1410mAh Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary NP-FW50 Lithium-ion rechargeable | 2 x Proprietary BP-1900 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | Yes | |
| Software | ||
| Included Software: | Software CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) | i-Launcher (web version), Power Media Player, Samsung Movie Converter, Samsung Raw Converter, Samsung DNG Converter, Adobe Photoshop Lightroom 5 |
| 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. | Available body-only, bundled with 16-50 f/3.5-5.6 PZ OIS lens, or bundled with 16-50mm f/2-2.8 S OIS lens with battery grip, dedicated battery charger and second battery. |
