Panasonic Lumix G DMC-GX8K + 14-42mm vs. Sony Alpha7 IV ILCE-7M4

Camera Comparison, Reviews and Tests

In depth comparison and review of Panasonic Lumix G DMC-GX8K + 14-42mm and Sony Alpha7 IV ILCE-7M4. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Panasonic Lumix G DMC-GX8K + 14-42mm vs. Sony Alpha7 IV ILCE-7M4 Comparison Chart
DESIGN AND DIMENSIONS Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Product Type Digital camera - 4K - mirrorless system Digital camera - 4K - mirrorless system
Lens Included 14-42mm lens Body only
Height 7.79 cm 9.64 cm
Width 13.32 cm 13.13 cm
Depth 6.31 cm 7.98 cm
Weight 435 g 658 g
Weight Details - Camera with battery and memory card: 658 g
Body Material - Magnesium alloy
Enclosure Colour Silver -
Protection Splashproof Dust-resistant, moisture-resistant
Digital Zoom 4x 4x
Optical Zoom 3x -
SENSOR Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Sensor Resolution 20.3 Megapixel 33.0 Megapixel
Optical Sensor Type Live MOS Exmor R CMOS
Total Pixels 21,770,000 pixels 34,100,000 pixels
Effective Sensor Resolution 20,300,000 pixels 33,000,000 pixels
Optical Sensor Size Four Thirds (17.3 x 13.0 mm) Full Frame (35.9 x 23.9 mm)
Frame Rate (Max Resolution) 25 fps 60 fps
Sensor Dust Reduction Yes Yes
Sensor Features Supersonic Wave Filter (SWF) Dust Reduction (image sensor vibration), Anti-Dust coating
Image Stabiliser Optical (image sensor shift mechanism) Optical (Steady Shot with 5-axis Intelligent Active Mode)
Built-in Optical Image Stabiliser Yes Yes
Sensors Digital level metre Digital level metre
PROCESSOR Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Image Processor - BIONZ XR
LENS Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Type Zoom lens - 3x zoom - 14 - 42 mm - f/3.5-5.6 G II -
Focal Length Equivalent to 35mm Camera 28 - 84mm -
Focus Adjustment Automatic, manual -
Min Focus Distance 20 cm -
Max View Angle 75 degree(s) -
Zoom Adjustment Manual -
Lens Construction 8 groups / 9 elements -
Filter Size 46 mm -
Lens Mounting Type Micro Four Thirds Sony E-mount
Features Internal focusing system, aspherical lens, Stepping Motor (STM) technology -
FOCUSING Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Auto Focus TTL contrast detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 49 759
Auto Focus Features Focus Peaking function Focus Peaking function, Predictive Focus Control
AE/AF Control Face-priority AF, Subject-tracking AF, Touch Area AF Face-priority AF, Subject-tracking AF, Touch Area AF, Zone AF, Real-time Eye AF, Real-time Tracking AF, Wide-area AF, Expanded area AF, animal eye detection, bird eye detection, right/left eye select
Face Detection Yes Eye Detect AF, face-priority AF function
VIEWFINDER Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Viewfinder Type Electronic - OLED Electronic - OLED
Viewfinder Colour Support Colour Colour
Viewfinder Diagonal Size - 0.5"
Viewfinder Resolution 2,360,000 pixels 3,686,400 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 1.54x 0.78x
Optical Viewfinder Dioptric Correction Range -4 to +3 -4 to +3
Field of View Crop Factor 2 -
Features Auto eye sensor -
EXPOSURE & WHITE BALANCE Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
ISO (Max) 25600 204800
Native ISO 200-12800 100-51200
Extended ISO (Max) 25600 204800
Extended ISO (Min) 100 50
Light Sensitivity ISO 100, ISO 800, ISO 400, ISO 200, ISO 1600, ISO 6400, ISO 3200, ISO auto, ISO 12800, ISO 25600 ISO 50, ISO auto, ISO 204800, ISO 100-51200
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, average, highlight spot
Exposure Metering Zones 1728 1200
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority Automatic, manual, aperture-priority, shutter-priority
Bracketing Modes - Dynamic Range Bracketing, white balance bracketing
Special Effects Sepia, Vivid, natural, monochrome, landscape, portrait, Cross Process, Retro, Expressive, high dynamic, Bleach Bypass, Selective Colour, High Key, Low Key, Toy effect, Star Filter, Impressive Art, One Point Colour, Dynamic Monochrome, Sunshine, Old Days, Toy Pop, Rough Monochrome, Silky Monochrome Soft Skin, Creative Look presets
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Cloudy, tungsten light, Flash, daylight, shade, 2500K - 10000K (100K steps) Incandescent, fluorescent, cloudy, Flash, daylight, shade, Underwater, 2500K - 9900K
Shutter Type Electronic Mechanical electronically-controlled
Max Shutter Speed 1/8000 sec 1/8000 sec
Min Shutter Speed 60 sec 30 sec
Exposure Compensation ±5 EV range, in 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing 7 steps in 1/3, 2/3 or 1 EV steps 3, 5 or 9 steps
White Balance Bracketing Yes -
X-sync Speed 1/125sec 1/250sec
Exposure Range EV 0-18 (ISO 100) EV -3-20 (ISO 100)
Retouch Clear Retouch function -
DISPLAY Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Type 3" OLED display 3" LCD display
Touch Screen Yes Yes
Display Format 1,040,000 pixels 1,036,000 pixels
Display Form Factor Folding Folding
Display Features Display brightness control, display colour control, display contrast control, Touch AE, Touch AF Display brightness control
FLASH Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Camera Flash Pop-up flash -
Flash Modes Fill-in mode, slow synchro, auto mode, flash OFF mode, red-eye reduction -
Red-Eye Reduction Yes -
Features AF illuminator -
VIDEOGRAPHY / CAMCORDER Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Digital Video Format AVCHD, H.264 MPEG-4, H.264, XAVC S, H.265, XAVC HS
Image Recording Format JPEG, RAW, RAW + JPEG, MPO, MPO + JPEG JPEG, RAW, RAW + JPEG, HEIF, RAW + HEIF
Max Video Resolution 3840 x 2160 3840 x 2160
Audio Signal Format - Linear PCM, AAC
Surround Sound Dolby Digital AC-3 (2 channel) recording -
Microphone Operation Mode Stereo Stereo
Microphone Features Wind noise reduction Wind noise reduction
MEMORY Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Memory Card Slot SD card SD card, CFexpress / SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress
Memory Card Included No -
Image Storage 5184 x 3888
3712 x 2784
2624 x 1968
MPO 1824 x 1368 - 3D mode
5184 x 3456
3712 x 2480
2624 x 1752
MPO 1824 x 1216 - 3D mode
5184 x 2920
3840 x 2160
1920 x 1080
MPO 1824 x 1024 - 3D mode
3888 x 3888
2784 x 2784
1968 x 1968
MPO 1712 x 1712 - 3D mode
7008 x 4672
4608 x 3072
3504 x 2336
4608 x 3072 - APS-C mode
3504 x 2336 - APS-C mode
6224 x 4672
4096 x 3072
3120 x 2336
4096 x 3072 - APS-C mode
3120 x 2336 - APS-C mode
7008 x 3944
4608 x 2592
3504 x 1968
4608 x 2592 - APS-C mode
3504 x 1968 - APS-C mode
4672 x 4672
3072 x 3072
2336 x 2336
3072 x 3072 - APS-C mode
2336 x 2336 - APS-C mode
Video Capture AVCHD - 3840 x 2160 - 25 fps - 100Mbps
AVCHD - 3840 x 2160 - 24 fps - 100Mbps
AVCHD - 1920 x 1080 - 50 fps - 28Mbps
AVCHD - 1920 x 1080 - 25 fps - 20Mbps
AVCHD - 1280 x 720 - 25 fps - 10Mbps
H.264 - 640 x 480 - 25 fps - 4Mbps
XAVC HS - 3840 x 2160 p - 60 fps
XAVC HS - 3840 x 2160 p - 24 fps
XAVC HS - 3840 x 2160 p - 50 fps
XAVC S - 3840 x 2160 p - 60 fps
XAVC S - 3840 x 2160 p - 30 fps
XAVC S - 3840 x 2160 p - 24 fps
XAVC S - 3840 x 2160 p - 50 fps
XAVC S - 3840 x 2160 p - 25 fps
XAVC S - 1920 x 1080 p - 60 fps
XAVC S - 1920 x 1080 p - 30 fps
XAVC S - 1920 x 1080 p - 24 fps
XAVC S - 1920 x 1080 p - 50 fps
XAVC S - 1920 x 1080 p - 25 fps
BATTERY AND CHARGING Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Battery Type Lithium Ion - manufacturer-specific Sony NP-FZ100 Lithium Ion
Details Li-ion rechargeable battery - 1200 mAh (included) Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included)
Battery Life Photo shooting - 330 shots Photo shooting - 520 shots (EVF on)
Photo shooting - 580 shots (LCD Monitor on)
Video recording - 100 minutes (EVF on)
Video recording - 110 minutes (LCD Monitor on)
CONNECTIONS Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Interface Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication) USB 2.0, USB-C, IEEE 802.11a/b/g/n/ac, Bluetooth 4.1
Connectivity Features Remote control via mobile devices, remote live view Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless video upload to FTP server, PC Remote functions via Wi-Fi
Print Standard Direct print, Exif Print support, PictBridge support Exif Print support, PRINT Image Matching
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0
Composite video/audio output
HDMI output (19 pin micro HDMI Type D)
Remote control (sub-mini phone 2.5 mm)
Microphone (sub-mini phone stereo 2.5 mm)
USB 2.0 (5 pin Micro-USB Type B)
USB 3.2 Gen 1 (USB Type-C)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
FEATURES Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Self-Timer Delay 10 sec, 2sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 2 frames per second, 8 frames per second, 10 frames per second, 6 frames per second, 5.5 frames per second 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second
Additional Features Built-in speaker, RGB primary colour filter, digital image rotation, histogram display, cropping an image, resizing an image, in-camera film editing, Intelligent Resolution Technology, Dolby Digital Stereo Creator, Intelligent Auto (iA), Intelligent D-range Control, HDR image enhancement technology, 3D photo shooting, text stamp, Touch Shutter technology, Multi-process Noise Reduction, Time-Lapse recording, Light Speed AF, silent shooting, Creative Panorama function Built-in speaker, camera orientation detection, histogram display, shadow point display, highlight point display, Dynamic Range Optimizer, USB charging, Intelligent AUTO (iAUTO), fast motion recording, noise reduction over long exposures, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, distortion correction function, S-Log2 gamma setting, slow motion recording, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting, 4:2:2 10-bit internal rercording, simultaneous streaming & recording mode, focus breathing compensation, USB streaming, 14-bit RAW
OTHERS Panasonic Lumix G DMC-GX8K + 14-42mm Sony Alpha7 IV ILCE-7M4
Included Accessories Battery charger, dust cap, body cap, lens cap, shoulder strap, USB cable, power cable, hot shoe cap, housing cover Eyepiece cover, body cap, shoulder strap, AC power adaptor, shoe cap, USB-C to USB-A cable
Software Drivers & Utilities, Loilo LoiLoScope (Trial), Panasonic PHOTOfunSTUDIO 9.7 Premium Edition, SILKYPIX Developer Studio 4.3 SE -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C 0 °C
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