I have had the Panasonic GH4 for just over two weeks and this is extended test. Including slow motion and low light performance. Low light footage was recorded using 800-1600 iso. Low light performance is very good for the camera of this size and in post production you can remove quite a lot of noise. When filming in slow motion at 96 FPS there is slight drop in detail and sharpens but it is still usable. I recoded in cinema 4K using natural profile and downgraded to 1080p. I applied minimal grading in Final Cut Pro X. Low Light test is at the end of the video
Lenses used canon 50mm F1.4, panasonic 20mm F1.7 for low light. Miranda 28mm F2.8 for general shots.
Let me know in the comments if you would like me to test anything else. Thanks for watching