• 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600
  • 1/2.3 inch 28.1mm2
  • 14.5 megapixels
  • 7.30mm (35mm eq.)
  • Detailed specifications
  • Panasonic Lumix DMC-GX8
  • Ricoh Theta S
Links
Prices: Compare Prices  
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Panasonic GX7
GX7 vs GX8 		 
Successor: Panasonic GX9
GX8 vs GX9 		Ricoh Theta V
Theta S vs Theta V
General
Model Number: GX8 Theta S
Alternate Model Number(s):    
Camera Format: Compact System Camera Other
Currently Manufactured: Yes Yes
Retail Price: $1199.99 $349.95
Street Price: $997.99 $289.99
Date Available: 2015-08-15 2015-10-30
Tripod Mount: Yes Yes
Weight: 17.2 oz (487 g)
includes batteries 		4.4 oz (125 g)
includes batteries
Size: 5.2 x 3.1 x 2.5 in.
(133 x 78 x 63 mm) 		1.7 x 5.1 x 0.9 in.
(44 x 130 x 23 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: Live MOS CMOS
Sensor Manufacturer: Panasonic  
Effective Megapixels: 20.3 14.5
Sensor Format: 4/3 1/2.3 inch
Sensor size: 224.9mm2 (17.30mm x 13.00mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 3.34 microns  
Focal Length Multiplier: 2.0x n/a
Aspect Ratio: 4:3 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed  
Self-Cleaning: Yes No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score: 75  
DxO Color Depth Score (bits): 23.5  
DxO Dynamic Range Score (evs): 12.6  
DxO Maximum Effective ISO Score (iso): 806  
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) 		5376 x 2688 (14.5 MP, Other),
2048 x 1024 (2.1 MP, Other)
Image File Format: JPEG (EXIF 2.3), MPO, RAW, RAW + JPEG JPEG (EXIF 2.3)
Continuous-mode frames/second: 8.3 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 3840x2160 (30p/​24p)
1920x1080 (60p/​60i/​30p/​24p)
1280x720 (30p)
640x480 (30p) 		1920x1080 (30p)
1280x720 (15p)
Movie File Format: AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) MP4 (video: MPEG-4 AVC/H.264, audio: AAC); Live streaming via HDMI supported (L:1920x1080/30fps M: 1280x720/30fps S: 720x480/30fps); Live streaming (USB): Motion JPEG (1280x720/15fps)
Composite Video Out: Yes No
NTSC/PAL Switchable Video: No n/a
Video Usable as Viewfinder: Yes n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Micro Four Thirds n/a
Lens: n/a Dual lenses; 7 elements in 6 groups
Focal Length (35mm equivalent):   7.3mm
Focal Length (actual):   1.3mm
Zoom Ratio:   1.00x
Aperture Range:   f/2.0 (fixed)
Integrated ND Filter: No No
Normal Focus Range:   10 cm to Infinity
3.9 in to Infinity
Macro Focus Range:    
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values: 2x, 4x  
Auto Focus
Auto Focus: Yes No
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 n/a
Auto Focus Assist Light? Yes n/a
Manual Focus: Yes No
Viewfinder
Viewfinder: EVF / OLED No / No LCD
Viewfinder Type: Tilting 2360K-dot OLED, 1.54x / 0.77x (35mm eq.) magnification, 21mm eyepoint, -4 to +3 diopter, eye sensor  
Focus Peaking: Yes No
EVF Resolution: 2,360,000 dots n/a
Viewfinder Magnification (35mm equivalent): 0.77x  
Viewfinder Magnification (nominal/claimed): 1.54x  
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes No
Rear Display Size (inches): 3.0 0.0
Rear Display Resolution: 1,036,800 dots (345,600 px)  
Touchscreen: Yes No
Articulating Screen: Yes No
Tilt Swivel Screen: Yes No
Selfie Screen: Yes No
Max Playback Zoom: 16.0x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 25600 1600
Minimum ISO (native): 200 100
ISO Settings: Auto, iISO, 100 (extended), 200 - 25600; in 1 or 1/3 EV steps Auto, 100-1600
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, Outdoors, Shade, Cloudy, Incandescent lamp 1, Incandescent lamp 2, Daylight color fluorescent lamp, Natural white fluorescent lamp, White fluorescent lamp, Light bulb color fluorescent lamp
Shutter Speed Range: 1/16000 - 60 sec 1/6400 - 60 sec
Bulb Mode: Yes No
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: 1728-zone Intelligent Multiple, Center-weighted, Spot Multi-segment
Program Auto Exposure: Yes Yes
Aperture Priority: Yes No
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: 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 Stills: Auto, ISO Priority, Shutter Priority, Manual; Movies: Auto
Self Timer: 2, 10, 3 shots in 10 seconds 5, Custom seconds
Time Lapse (intervalometer): Yes Yes
High Resolution Composite: No No
Flash
Built-in Flash: No 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. n/a
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/250  
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps  
External Flash Connection: Hot Shoe n/a
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC
UHS Support: UHS-I  
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes No
Uncompressed Format: RAW, RAW + JPEG  
Movie File Format: AVCHD (Audio format: Dolby Digital 2ch) / MP4 (Audio format AAC 2ch) MP4 (video: MPEG-4 AVC/H.264, audio: AAC); Live streaming via HDMI supported (L:1920x1080/30fps M: 1280x720/30fps S: 720x480/30fps); Live streaming (USB): Motion JPEG (1280x720/15fps)
Included Memory: No memory included 8,000.0 MB
Included Memory Type:   Internal
Connectivity
Built-In Wi-Fi: Yes Yes
NFC: Yes No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes No
Headphone Jack: No No
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Wi-Fi or optional wired Via Wi-Fi or CA-3 USB cable switch
Connections (extended): Micro HDMI (Type-D), 2.5mm Wired Remote/External Mic Jack Micro USB 2.0, Micro HDMI (Type-D)
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? Yes
JPEG shooting speed in burst mode (fps, max resolution): 8.3  
Buffer size for JPEG shooting in burst mode (frames, max resolution): 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): 0.18 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.065 seconds  
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.058 seconds  
Shutter Lag (notes):    
Startup Time: 1.2 seconds  
Play -> Record Time: 0.6 seconds  
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 340 shots 260 shots
Battery Life, Still (CIPA Rating OVF/EVF): 320 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary Built-in
Usable Battery Types: 7.2v, 1200mAh Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable Built-in lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes No
Dedicated Battery Charger Included: Yes No
Internal Charging Supported: No Yes
Software
Included Software: PHOTOfunSTUDIO 9.7 PE, SILKYPIX Developer Studio 4.3 SE, LoiloScope (trial version)  
OS Compatibility: 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: 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