Film Diary #11: Olympus Pen F, a half frame beauty
Olympus M.Zuiko Digital ED 45mm 1:1.2 PRO. Non-technical review (Livejournal).
My Favorite Way To Focus on the Panasonic GH4 (Dave Dugdale).
5 Camera HACKS in Under 3 Minutes! (Tom Hitchins).
Lenses Are Being Reinvented, and Cameras Will Never Be the Same (MIT).
The Sweeter the Better with the Lensbaby Sweet 80 Optic (Explora).
Plenty of news on the facebook E-M1II group and the GH5 group.