| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Panasonic GX7
GX7 vs GX8 |
|
| Successor: |
Panasonic GX9
GX8 vs GX9 |
|
| General | ||
| Model Number: | A55 | GX8 |
| Alternate Model Number(s): | SLT-A55 (w/o GPS) | |
| Camera Format: | SLR | Compact System Camera |
| Currently Manufactured: | No | Yes |
| Retail Price: | $849.99 | $1199.99 |
| Street Price: | $733.99 | $997.99 |
| Date Available: | 2010-10-15 | 2015-08-15 |
| Tripod Mount: | Yes | Yes |
| Weight: |
25.6 oz
(727 g)
includes batteries, kit lens |
17.2 oz
(487 g)
includes batteries |
| Size: |
4.9 x
3.6 x
3.3 in. (124 x 92 x 85 mm) |
5.2 x
3.1 x
2.5 in. (133 x 78 x 63 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | Live MOS |
| Sensor Manufacturer: | Sony | Panasonic |
| Effective Megapixels: | 16.2 | 20.3 |
| Sensor Format: | APS-C | 4/3 |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 224.9mm2 (17.30mm x 13.00mm) |
| Approximate Pixel Pitch: | 4.82 microns | 3.34 microns |
| Focal Length Multiplier: | 1.5x | 2.0x |
| Aspect Ratio: | 3:2, 16:9 | 4:3 |
| 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: | 73 | 75 |
| DxO Color Depth Score (bits): | 23.0 | 23.5 |
| DxO Dynamic Range Score (evs): | 12.4 | 12.6 |
| DxO Maximum Effective ISO Score (iso): | 818 | 806 |
| 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) |
5184 x 3888
(20.2 MP,
4:3), 3712 x 2784 (10.3 MP, 4:3), 2624 x 1968 (5.2 MP, 4:3), 1824 x 1368 (2.5 MP, 4:3), 5184 x 3456 (17.9 MP, 3:2), 3712 x 2480 (9.2 MP, 3:2), 2624 x 1752 (4.6 MP, 3:2), 1824 x 1216 (2.2 MP, 3:2), 5184 x 2920 (15.1 MP, 16:9), 3840 x 2160 (8.3 MP, 16:9), 1920 x 1080 (2.1 MP, 16:9), 1824 x 1024 (1.9 MP, 16:9), 3888 x 3888 (15.1 MP, 1:1), 2784 x 2784 (7.8 MP, 1:1), 1968 x 1968 (3.9 MP, 1:1), 1712 x 1712 (2.9 MP, 1:1) |
| Image File Format: | JPEG, RAW (ARW 2.2), RAW+JPEG | JPEG (EXIF 2.3), MPO, RAW, RAW + JPEG |
| Continuous-mode frames/second: | 9.0 | 8.3 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (60i/50i)
1440x1080 (30/25) 640x480 (30/25) |
3840x2160 (30p/24p)
1920x1080 (60p/60i/30p/24p) 1280x720 (30p) 640x480 (30p) |
| Movie File Format: | AVCHD, MP4 | AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) |
| Composite Video Out: | No | Yes |
| NTSC/PAL Switchable Video: | n/a | No |
| Video Usable as Viewfinder: | n/a | Yes |
| HD Video Out: | Yes | Yes |
| HD Video Connection: | HDMI | HDMI |
| Lens & Optics | ||
| Lens Mount: | Sony Alpha (Minolta A) | Micro Four Thirds |
| Lens: | Sony 18-55mm f/3.5-5.6 DT SAM | n/a |
| Focal Length (35mm equivalent): | 27 - 83mm | |
| Focal Length (actual): | 18 - 55mm | |
| Zoom Ratio: | 3.00x | |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - ?? (T) | |
| Integrated ND Filter: | No | No |
| Normal Focus Range: | ||
| Macro Focus Range: | ||
| 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 | 2x, 4x |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. | Contrast Detection with DFD: Face/Eye detection, Tracking, 49-area, Custom Multi, 1-area, Pinpoint; One Shot AF, Shutter AF, Half Press Release, Quick AF, Continuous AF (during motion picture recording), Eye Sensor AF, AF+MF, MF Assist, Touch MF Assist, Focus Peaking, Touch AF/AE Function, Touch Pad AF, Touch Shutter |
| 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 | Tilting 2360K-dot OLED, 1.54x / 0.77x (35mm eq.) magnification, 21mm eyepoint, -4 to +3 diopter, eye sensor |
| Focus Peaking: | No | Yes |
| EVF Resolution: | 2,360,000 dots | |
| Viewfinder Magnification (35mm equivalent): | 0.73x | 0.77x |
| Viewfinder Magnification (nominal/claimed): | 1.10x | 1.54x |
| 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: | Yes | |
| Selfie Screen: | Yes | |
| Max Playback Zoom: | 11.8x | 16.0x |
| Top Deck Display: | No | No |
| Exposure | ||
| Maximum ISO (native): | 12800 | 25600 |
| Minimum ISO (native): | 100 | 200 |
| ISO Settings: | Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600) | Auto, iISO, 100 (extended), 200 - 25600; in 1 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 19-step Magenta/Green compensation) | Auto, Daylight, Cloudy, Shade, Incandescent, Flash, White Set 1-4, Color Temperature Setting (2,500-10,000K in 100K steps) |
| Shutter Speed Range: | 1/4000 - 30 sec | 1/16000 - 60 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 | 1728-zone Intelligent Multiple, 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) | Panorama (Standard/Wide); Creative Control: Expressive, Retro, Old Days, High Key, Low Key, Sepia, Monochrome, Dynamic Monochrome, Rough Monochrome, Silky Monochrome, Impressive Art, High Dynamic, Cross Process, Toy Effect, Toy Pop, Bleach Bypass, Miniature Effect, Soft Focus, Fantasy, Star Filter, One Point Color, Sunshine |
| Self Timer: | 2 or 10 seconds | 2, 10, 3 shots in 10 seconds |
| Time Lapse (intervalometer): | Yes | |
| High Resolution Composite: | No | No |
| Flash | ||
| Built-in Flash: | Yes | No |
| Flash Modes: | Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off | Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off; 1st. Curtain Sync, 2nd Curtain Sync. |
| Flash Guide Number (ISO 100): | 10.0 m / 32.8 ft. | n/a |
| Flash Range Description: | Lens dependent | n/a |
| Max Flash Sync: | 1/160 | 1/250 |
| Flash Exposure Compensation: | +/- 2.0 EV in 0.3EV steps | +/- 3.0 EV in 0.3EV steps |
| External Flash Connection: | Hot shoe | Hot Shoe |
| Built-In Wireless Flash Control: | Full TTL exposure | No |
| Image Storage | ||
| Usable Memory Types: | MS PRO Duo / SD / SDHC / SDXC | SD / SDHC / SDXC |
| UHS Support: | UHS-I | |
| Other Memory: | ||
| Dual Card Slots: | No | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW (ARW 2.2), RAW+JPEG | RAW, RAW + JPEG |
| Movie File Format: | AVCHD, MP4 | AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) |
| Included Memory: | No memory included | |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | Yes |
| NFC: | Yes | |
| Bluetooth: | No | No |
| Built-In GPS: | Yes | No |
| Microphone Jack: | Yes | Yes |
| Headphone Jack: | No | No |
| External Connections: | USB 2.0 High Speed | USB 2.0 High Speed,WiFi |
| PictBridge Compliant: | Yes | Yes |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional Wireless or Wired | Wi-Fi or optional wired |
| Connections (extended): | Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack | Micro HDMI (Type-D), 2.5mm Wired Remote/External Mic Jack |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.52 | <0.3 |
| 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): | <0.3 | |
| Camera penalizes early shutter press? | No | Yes |
| JPEG shooting speed in burst mode (fps, max resolution): | 9.0 | 8.3 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 32 | Unlimited |
| RAW shooting speed in burst mode (fps): | 7.9 | |
| Buffer size for RAW shooting in burst mode (frames): | 36 | |
| RAW+JPEG shooting speed in burst mode (fps): | 7.9 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 32 | |
| Shutter lag (full AF, wide/mid): | 0.22 seconds | 0.18 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 | 0.065 seconds |
| Shutter lag (full AF, with flash): | 0.48 seconds | |
| Shutter Lag (prefocused): | 0.103 seconds | 0.058 seconds |
| Shutter Lag (notes): | Full AF, wide-area mode = 0.218s | |
| Startup Time: | 0.9 seconds | 1.2 seconds |
| Play -> Record Time: | 0.6 seconds | 0.6 seconds |
| Flash cycle time, full power: | 3.7 seconds | |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | 340 shots | |
| Battery Life, Still (CIPA Rating OVF/EVF): | 330 shots | 320 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary NP-FW50 | Proprietary |
| Usable Battery Types: | Lithium-ion rechargeable | 7.2v, 1200mAh Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary NP-FW50 Lithium-ion rechargeable | 1 x Proprietary 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: | Software CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) | PHOTOfunSTUDIO 9.7 PE, SILKYPIX Developer Studio 4.3 SE, LoiloScope (trial version) |
| OS Compatibility: | Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +) | PHOTOfunSTUDIO and LoiloScope: Windows Vista/7/8/8.1; SILKYPIX: Windows Vista/7/8/8.1, Mac OS X 10.5-10.10 |
| 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. | New 20.3MP Live MOS sensor, upgraded quad-core CPU Venus Engine image processor, Dual IS uses both IBIS and OIS, 4K 30p/24p video and stills capture, 8fps full-res burst shooting (10fps with electronic shutter), Depth From Defocus AF, tilting high-res 0.77x EVF, tilt/swivel touchscreen OLED monitor, built-in Wi-Fi with NFC, magnesium alloy die cast frame |
