Tony Northup accidentally posted the full review of the upcoming Sony A7 IV camera on their youtube channel. There are plenty of screenshots leaked online already. The video is now removed, but you can still see the title and main thumbnail that reveals the US price of the Sony a7 IV camera - $2,600.
Here is the link to the video: https://www.youtube.com/watch?v=HNyhlvPFjso
Update: the full video review is now available on Vimeo (via CanonRumors). Here are some screenshots from the video (more screenshots are available here):
The previously rumored Sony a7IV camera specifications can be found here:
