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Panasonic Lumix DC-GH5S^[1]
Overview
Type	Micro Four Thirds system mirrorless camera
Released	January 2018
Lens
Lens mount	Micro Four Thirds system mount
Sensor/medium
Sensor	4/3-type, multi aspect: 4:3, 3:2, 16:9, 17:9
Sensor type	CMOS
Sensor size	17.3 x 13 mm (4:3 aspect ratio)
Maximum resolution	3680 px × 2760 px, 3840 px × 2560 px, 4016 px × 2256 px, 4096 px × 2160 px (10.28 Megapixels)
Film speed	ISO 160 to ISO 51200, extendable from ISO 80 to ISO 204800
Recording medium	2x SD / SDHC / SDXC UHS-I/UHS-II speed class 3
Focusing
Focus	Switchable auto and manual
Focus modes	AF-C (continuous-servo), AF-F (flexible AF), AF-S (single servo AF), Manual Focus
Focus areas	225 contrast detection AF
Exposure/metering
Exposure modes	Program AE; aperture Priority, shutter priority, manual
Metering modes	Center-weighted, multiple, spot
Flash
Flash synchronization	1/250
Flash bracketing	±3 EV in ⅓ EV steps
Shutter
Shutter	Focal-plane shutter / Electronic shutter
Shutter speed range	1/8000 - 60 s (mechanical shutter), bulb (up to 30 minutes), 1/16000s (electronic shutter)
Continuous shooting	11 fps (mechanical shutter, 10 Mpx, 14 bits), 60 fps at 8 MP (electronic shutter)
Viewfinder
Viewfinder	OLED viewfinder; 3.68 Mdots
Viewfinder magnification	0.76x
Image processing
White balance	Auto, cloudy, shade, incadescent, flash, daylight, white set 1/2/3/4, custom WB based on color temperature
General
Video recording	AVCHD / MP4 / MOV; 4096 x 2160 (24p, 25p, 30p, 60p) ; 3840 x 2160 (24p, 25p, 30p, 50p, 60p) ; 3328 x 2496p (24p, 25p, 30p 50p, 60p) ; 1920 x 1080p (24p, 25p, 30p, 50p, 60p, …, 240p)
LCD screen	3.2", 1.62 Mdots, free-angle
Battery	7.2v 1860 mAh Lithium-ion battery pack
Data Port(s)	Wi-Fi, Bluetooth, full-sized HDMI Type-A, USB 3.1 Gen1 5Gbit/s,
Dimensions	139 x 98 x 87 mm (5.5 x 3.9 x 3.4")
Weight	660 g (battery and SD cards inserted)
Made in	China

The Panasonic Lumix DC-GH5S is a Micro Four Thirds mirrorless interchangeable lens camera body announced and released by Panasonic in January 2018.^[2]

Physical characteristics

Example in candle light with high contrast and high dynamic range between bright flame and dark background

Different aspect ratios without image sensor cropping

Video clip of a meteor of the Perseids, crop of a 4K-recording with 30 frames per second and with an exposure index of ISO 12800

It is the first mirrorless camera body of Panasonic, where the image sensor is equipped with two analogue amplifiers for every pixel (Dual Native ISO). With this technology, the model shall be predestinated for video shooting in low light and high dynamic range situations.^[3]

The body is made of a magnesium alloy, and it has a fully articulable monitor with touch screen functionality as well as an electronic viewfinder and a hot shoe for a flash light.^[1]

Via Wi-Fi, the camera can be remotely controlled and accessed by smartphones, tablet computers or mobile and desktop computers with the mobile app Panasonic Image App.^[4] Via USB cable, there is the possibility of remote shooting with the software Lumix Tether.^[5]

Special properties

Compared to the sister model Panasonic Lumix DMC-GH5, the GH5S differs mainly in the following properties:

Image sensor
- „Multi-Aspect“ with aspect ratios 4:3, 3:2, 16:9, 17:9
- „Dual Native ISO“ (with two amplifiers per pixel with different amplification factor)^[6]
  - „low“ with exposure indices ISO 160 to ISO 800, extendible from ISO 80, native sensitivity ISO 400
  - „high“ with exposure indices ISO 800 to ISO 51200, extendible to ISO 204800, native sensitivity ISO 2500
- Lower maximum pixel count of 10 megapixels with a larger pixel pitch of 4,7 micrometers
- No 6k photo modus (with 18 megapixels)
- No stabilisation at image sensor, and therefore, no „'Dual-IS“ (synchronisation between the image stabilisation systems of lenses and camera body)
Video functions
- 4k video recordings with 60 frames per second^[6]
- Slow motion recordings in Full HD with 240 frames per second^[6]
- In- and output for timecode signals^[6]

In the following image sequence, there is an object taken with f-number 5.6 and with different exposure indices between ISO 160 and ISO 51200. As a result, the images had to be taken with different shutter speeds. At ISO 51200, image noise is easily recognisable at full magnification: