The GH5S, Only 10MP, and Why That's a Good Thing
/First, this is designed for video, the S in GH5S stands for sensitive in low light. The GH5S looks almost identical to the GH5 on the outside, just a red shutter button, red ring on the mode dial and the S in the model name. It is on the inside that we see camera completely designed for video with low light demands. Primarily targeted at an event, wedding, and other videographers shooting in low light.GH5 provides a 21MP sensor, the GH5S is just 10! What kind of upgrade is that? When shooting video we're not using the full resolution of the sensor, all those extra pixels are wasted, dropping the megapixels of the sensor to 10, similar to Sony's approach with the a7S series at 12MP, allows for larger pixels. Larger pixels do better in low light.Key Benefits of the GH5S:
10MP low light sensor
14-bit raw stills
Key Differences Compared to the GH5
10MP vs 20MP - Better in low light, less room for cropping
No IBIS (In Body Image Stabilization)
I love my GH5 - it is a fantastically easy camera to shoot video with and takes beautiful still images too. I talk more about my favorite features of the GH5 in this video. The IBIS stabilization paired with a stabilized lens gives you very smooth handheld footage. With the removal of IBIS in the GH5S (They assume you will use a gimbal) I can really only recommend this GH5S as an upgrade for those primarily shooting in lower light. For general videographers and travel photographers/videographers the GH5 is still my pick.And don't forget about the little G85 - for less than $1,000 this is one of the best travel photo/video systems out there. My Full Review of the G85What does this mean for the GH6? Where will Panasonic go with the GH6 and will there be a GH6S? I don't know, but it's something I'd like to find out now that they've split these two models.Final Thoughts. I Love the GH5 as a video-based camera that can take very good still images. I have no desire to pick up the GH5S as overall, for me, the IBIS is too big of a loss and I'm shooting in all sorts of light. If I was doing more weddings though, this would be perfect for the low light situations you'd be running into shooting.
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Sample Video
https://www.youtube.com/watch?v=QoyFxuFh3AEhttps://www.youtube.com/watch?v=clbE9fRHo-8
Specifications
GH5S
GH5
Lens Mount
Micro Four Thirds (2x Crop Factor)
Micro Four Thirds (2x Crop Factor)
Pixels
Actual: 11.93 MegapixelEffective: 10.28 Megapixel
Actual: 21.77 MegapixelEffective: 20.3 Megapixel
Max Resolution
10 MP: 3680 x 2760
20 MP: 5184 x 3888
Aspect Ratio
1:1, 3:2, 4:3, 16:9
1:1, 3:2, 4:3, 16:9
Sensor Type / Size
MOS, 17.3 x 13 mm
MOS, 17.3 x 13 mm
File Formats
Still Images: JPEG, RAWMovies: AVCHD Ver. 2.0, H.264, MOV, MP4, MPEG-4 AVC/H.264Audio: AAC, Dolby Digital 2ch, Linear PCM (Stereo)
Still Images: JPEG, RAWMovies: AVCHD Ver. 2.0, H.264, MOV, MP4Audio: AAC, Dolby Digital 2ch
Bit Depth
14-Bit
10-Bit
Dust Reduction System
Yes
Yes
Memory Card Type
SDSDHCSDXC
SDSDHCSDXC
Image Stabilization
None
Sensor-Shift, 5-Way
Video Recording
Yes, NTSC/PAL
Yes, NTSC/PAL
Video Format
4096 x 2160p at 23.98, 24, 25, 29.97, 50, 59.94 fps3840 x 2160p at 23.98, 24, 25, 29.97, 50, 59.94 fps3328 x 2496p at 23.98, 24, 25, 29.97, 50, 59.94 fps1920 x 1080p at 23.98, 24, 25, 29.97, 50, 59.94, 120, 240 fps
4096 x 2160p at 23.98, 24, 25 fps3840 x 2160p at 23.98, 24, 25, 29.97, 50, 59.94 fps3328 x 2496p at 23.98, 24, 25, 29.97, 50, 59.94 fps1920 x 1080p at 23.98, 24, 25, 29.97, 50, 59.94 fps
Aspect Ratio
16:9
4:3, 16:9
Audio Recording
Built-In Mic: With Video (Stereo)Optional External Mic: With Video (Stereo + Mono)
Built-In Mic: With Video (Stereo)Optional External Mic: With Video (Stereo + Mono)
Focus Type
Auto & Manual
Auto & Manual
Focus Mode
Continuous-Servo AF (C), Flexible (AFF), Manual Focus (M), Single-servo AF (S)
Continuous-Servo AF (C), Flexible (AFF), Manual Focus (M), Single-servo AF (S)
Autofocus Points
Contrast Detection: 225
Contrast Detection: 225
Viewfinder Type
Electronic
Electronic
Viewfinder Pixel Count
3,686,000
3,686,000
Viewfinder Eye Point
21.00 mm
21.00 mm
Viewfinder Coverage
100%
100%
Viewfinder Magnification
Approx. 0.76x
Approx. 0.76x
Diopter Adjustment
-4 to +3 m
-4 to +3 m
Display Screen
3.2" Rear Touchscreen Swivel Touchscreen LCD (1,620,000)
3.2" Rear Touchscreen Swivel Touchscreen LCD (1,620,000)
Screen Coverage
100%
100%
ISO Sensitivity
Auto, 160-51200 (Extended Mode: 80-204800)
Auto, 200-25600 (Extended Mode: 100-25600)
Shutter
Type: Electronic & MechanicalSpeed: 60 - 1/8000 SecondType: Electronic & MechanicalSpeed: 30 - 1 Minute in Bulb Mode1/24 - 1/16000 Second in Movie ModeType: ElectronicSpeed: 1 - 1/16000 Second
Type: Electronic & MechanicalSpeed: 60 - 1/8000 SecondType: Electronic & MechanicalSpeed: 30 - 1 Minute in Bulb Mode1/24 - 1/16000 Second in Movie ModeType: ElectronicSpeed: 1 - 1/16000 Second
Remote Control
DMW-RSL1 (Optional)
DMW-RSL1 (Optional)
Metering Method
Center-Weighted Average Metering, Multiple, Spot Metering
Center-Weighted Average Metering, Multiple, Spot Metering
Exposure Modes
Modes: Aperture Priority, Manual, Programmed Auto, Shutter PriorityMetering Range: EV 0.0 - EV 18.0Compensation: -5 EV to +5 EV (in 1/3 EV Steps)
Modes: Aperture Priority, Manual, Programmed Auto, Shutter PriorityMetering Range: EV 0.0 - EV 18.0Compensation: -5 EV to +5 EV (in 1/3 EV Steps)
White Balance Modes
Auto, Cloudy, Color Temperature, Daylight, Flash, Incandescent, Shade, White Set 1, White Set 2, White Set 3, White Set 4
Auto, Cloudy, Color Temperature, Daylight, Flash, Incandescent, Shade, White Set 1, White Set 2, White Set 3, White Set 4
Buffer/Continuous Shooting
Up to 12 fps at 10.3 MP for up to 80 Frames in Raw FormatUp to 11 fps at 10.3 MP for up to 80 Frames in Raw FormatUp to 12 fps at 10.3 MP for up to 600 Frames in JPEG FormatUp to 11 fps at 10.3 MP for up to 600 Frames in JPEG FormatUp to 8 fps at 10.3 MPUp to 7 fps at 10.3 MPUp to 6 fps at 10.3 MPUp to 5 fps at 10.3 MPUp to 2 fps at 10.3 MPUp to 60 fps at 8 MP
Up to 12 fps at 20.3 MPUp to 30 fps at 18 MPUp to 60 fps at 8 MP
Flash Modes
AutoAuto/Red-Eye ReductionForced OnForced On/Red-Eye ReductionOffSlow SyncSlow Sync/Red-Eye Reduction
AutoAuto/Red-Eye ReductionForced OnForced On/Red-Eye ReductionOffSlow SyncSlow Sync/Red-Eye Reduction
Built-in Flash
No
No
Max Sync Speed
1 / 250 Second
1 / 250 Second
Flash Compensation
-3 EV to +3 EV (in 1/3 EV steps)
-3 EV to +3 EV (in 1/3 EV steps)
Dedicated Flash System
TTL
TTL
External Flash Connection
Hot Shoe, PC Terminal
Hot Shoe, PC Terminal
Self Timer
10 Seconds, 2 Seconds
10 Seconds, 2 Seconds
Interval Recording
Yes
Yes
Connectivity
1/8" Headphone, 1/8" Microphone, 2.5mm Sub-mini (2-Ring), HDMI A (Full Size), USB 3.0, USB Type-C, Viera Link, X-Sync Socket
1/8" Headphone, 1/8" Microphone, 2.5mm Sub-mini (2-Ring), HDMI A (Full Size), USB 3.0, Viera Link
Wi-Fi Capable
Yes
Yes
Battery
1 x DMW-BLF19 Rechargeable Lithium-Ion Battery Pack, 7.2 VDC, 1860 mAh
1 x DMW-BLF19 Rechargeable Lithium-Ion Battery Pack, 7.2 VDC, 1860 mAh
Operating/Storage Temperature
Operating14 to 104°F (-10 to 40°C)Humidity: 10 - 80%
Operating14 to 104°F (-10 to 40°C)Humidity: 10 - 80%
Dimensions (W x H x D)
5.5 x 3.9 x 3.4" / 138.5 x 98.1 x 87.4 mm
5.5 x 3.9 x 3.4" / 138.5 x 98.1 x 87.4 mm
Weight
1.452 lb / 660 g with battery and memory card
1.595 lb / 725 g with battery and memory card
The Yi M1 uses the 20.16MP Sony IMX269, actually the same sensor in the Olympus Pen-F giving it 4K (30fps), fast continuous shooting, and RAW image capability. This allows it a speed of five frames per second and a 81 point focus system which is good for a entry level camera. As for RAW it saves in Adobe DNG making it work perfectly with Lightroom. Bluetooth and Wifi are included for fast mobile sharing and remote control of the camera. 
