Download firmware version 1.1 of the GH5 (April 24th, 2017):
http://av.jpn.support.panasonic.com/support/global/cs/dsc/download/fts/dl/gh5.html
Official Panasonic web page about the GH5:
http://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-g-compact-system-cameras/dc-gh5l.html
Complete specifications:
https://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-g-compact-system-cameras/dc-gh5l.specs.html
Download page for the Lumix firmware (GH4/GH5/others):
http://av.jpn.support.panasonic.com/support/global/cs/dsc/download/
Advanced user manual in PDF (348 pages):
https://eww.pavc.panasonic.co.jp/dscoi/DC-GH5/EG_EC_EF_EB/DC-GH5_DVQP1121ZA_eng.pdf
Official PDF from Panasonic about V-Log L (exposure, ETTR, LUTs, etc):
http://pro-av.panasonic.net/en/dvx4k/pdf/ag-dvx200_tech_brief_vol6_en.pdf
The complete review by CameraLabs with photo and video samples to download:
https://www.cameralabs.com/panasonic-lumix-gh5-review/
How to fix the problem with the SpeedBooster on the GH5:
Sample footages from the GH5 in 4:2:2 10-bit and V-Log by Emmanuel Pampuri:
Demo of the 6K Photo mode (real resolution 5K) by Nick Driftwood:
Comparison between GH4/GH5 in lowlight:
What is the 4:2:2 10-bit ?:
Important to know before comparing 8-bit and 10-bit:
How to install and activate the V-Log: