• 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600
  • 35mm 847.3mm2
  • 12.1 megapixels
  • ISO 80 - 102,400
  • Detailed specifications
  • Panasonic Lumix DC-GX9
  • Sony Alpha ILCE-A7S III
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Panasonic GX8
GX8 vs GX9
 
Successor:   Sony A7S II
A7S III vs A7S II
General
Model Number: GX9 A7S III
Alternate Model Number(s): GX7 Mark III ILCE-7SM3
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $999.99 $3499.99
Street Price: $897.99 $3,348.00
Date Available: 2018-03-15 2020-09-01
Tripod Mount: Yes Yes
Weight: 23.3 oz (660 g)
includes batteries, kit lens
21.7 oz (614 g)
includes batteries
Size: 4.9 x 2.8 x 1.8 in.
(124 x 72 x 47 mm)
5.1 x 3.8 x 2.7 in.
(129 x 97 x 70 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: Live MOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 20.3 12.1
Sensor Format: 4/3 35mm
Sensor size: 224.9mm2 (17.30mm x 13.00mm) 847.28mm2 (35.60mm x 23.80mm)
Approximate Pixel Pitch: 3.34 microns 8.40 microns
Focal Length Multiplier: 2.0x 1.0x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None  
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 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)
4240 x 2832 (12.0 MP, 3:2),
4240 x 2384 (10.1 MP, 16:9),
2768 x 1848 (5.1 MP, 3:2),
2768 x 1560 (4.3 MP, Other),
2128 x 1416 (3.0 MP, 3:2),
2128 x 1200 (2.6 MP, Other),
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)
Image File Format: JPEG (EXIF 2.31), RAW, RAW + JPEG JPEG (8-bit), HEIF (10-bit), RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: 9.2 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 3840x2160 (30p/​24p)
1920x1080 (60p/​60i/​30p/​24p)
1280x720 (30p)
4264x2408 (60p)
3840x2160 (120p/​60p/​50p/​30p/​25p/​24p)
1920x1080 (240p/​120p/​60p/​50p/​30p/​25p/​24p)
Movie File Format: AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
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: Micro Four Thirds Sony E
Lens: Panasonic Lumix G Vario 12-60mm F3.5 - 5.6 Asph. Power OIS (H-FS12060) n/a
Focal Length (35mm equivalent): 24 - 120mm  
Focal Length (actual): 12 - 60mm  
Zoom Ratio: 5.00x  
Aperture Range: f/3.5 (W) / f/5.6 (T) - f/22  
Integrated ND Filter: No No
Normal Focus Range: 20 cm to Infinity
7.9 in to Infinity
 
Macro Focus Range:    
Filter Thread: 58.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes Yes
Digital Zoom Values: 2x, 4x Up to 4x; 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 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 Fast Hybrid 4D AF: 759 points (PDAF), 425 points (contrast-detection AF); Wide (759 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD EVF / LCD
Viewfinder Type: Tilting 2760k-dot equivalent (field sequential) LCD, 1.39x / 0.70x (35mm eq.) magnification, 17.5mm eyepoint, -4 to +3 diopter, eye sensor EVF: 0.64" 9.44M-dot QXGA color OLED, 100% coverage, 0.90x magnification, -4.0 to +3.0 diopter, 25mm eyepoint from the eyepiece lens
Focus Peaking: Yes Yes
EVF Resolution: 920,000 dots 9,437,184 dots (3,145,728 pixels)
Viewfinder Magnification (35mm equivalent): 0.70x 0.90x
Viewfinder Magnification (nominal/claimed): 1.39x 0.90x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 1,240,000 dots (413,300 px) 1,440,000 dots (480,000 px)
Touchscreen: Yes Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x 13.3x
Top Deck Display: No No
Exposure
Maximum ISO (native): 25600 102400
Minimum ISO (native): 200 80
ISO Settings: Auto, iISO, 100 (extended), 200 - 25600; in 1 or 1/3 EV steps Auto, 80 - 102,400, expandable to 40 - 409,600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, Shade, Incandescent, Flash, White Set 1-4, Color Temperature Setting (2,500-10,000K in 100K steps) Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 57-step Magenta/Green and 29-step Amber/Blue compensation), Underwater
Shutter Speed Range: 1/16000 - 60 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1728-zone Intelligent Multiple, Center-weighted, Spot 1200-zone Evaluative 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: Sweep Panorama (Standard/Wide); Creative Control: Expressive, Retro, Old Days, High Key, Low Key, Sepia, L. Monochrome D, 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 3 Custom Settings; Creative Look; Slow & Quick Motion; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step)
Self Timer: 2, 10, 3 shots in 10 seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: 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. Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync
Flash Guide Number (ISO 100): 4.2 m / 13.8 ft. n/a
Flash Range Description: GN=6.0m (ISO 200) n/a
Max Flash Sync: 1/200 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Enhanced Multi Interface Hot Shoe, Sync Terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC MS PRO Duo / SD / SDHC / SDXC / CFexpress
UHS Support: UHS-I UHS-I
Other Memory:   2x CFexpress Type A+SD UHS-II
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: RAW, RAW + JPEG RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Movie File Format: AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: No Yes
Bluetooth: Yes Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed,Bluetooth,WiFi USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wi-Fi and Bluetooth Yes, via USB or Wi-Fi
Connections (extended): Micro HDMI (Type-D), Micro-B USB 2.0 port USB-C (USB 3.2 Gen 1, 5Gbps), Multi-Terminal Micro USB (with remote support), Type-A HDMI, 3.5mm Microphone and Headphone jacks
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): <0.3  
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): <0.3  
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 9.2  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 140  
RAW shooting speed in burst mode (fps): 9.1  
Buffer size for RAW shooting in burst mode (frames): 32  
RAW+JPEG shooting speed in burst mode (fps): 9.2  
Buffer Size for RAW+JPEG shooting in burst mode (frames): 29  
Shutter lag (full AF, wide/mid): 0.15 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.060 seconds  
Shutter lag (full AF, with flash): 0.36 seconds  
Shutter Lag (prefocused): 0.050 seconds  
Shutter Lag (notes):    
Startup Time: 1.0 seconds  
Play -> Record Time: 0.5 seconds  
Flash cycle time, full power: 1.5 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 260 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 250 shots  
Battery Life, Video: 70 minutes  
Battery Form Factor: Proprietary Proprietary
Usable Battery Types: 7.2v, 1200mAh Lithium-ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable 1 x Proprietary NP-FZ100 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes Yes
Internal Charging Supported: No Yes
Software
Included Software:   Capture One Express (for Sony) free download
OS Compatibility:   Windows, Mac OS X
Miscellaneous
Notes & Features: Available in black or silver.