Pro video blog…Produced by Philip Johnston DoP/Editor


October sees the latest FW for the Panasonic GH4 and brings some interesting new modes including square pictures or 1:1

1. [4K PHOTO] mode is added which records 4K video exclusively for capturing a frame to save as a photo.

  • Settings can be adjusted as below when entering this mode.
-Rec Format : MP4
-Rec Quality : 4K/30p/100Mbps
(System Frequency 59.94Hz)
(System Frequency 50.00Hz)
-Luminance Level:0-255
  • In addition to 16:9 aspect, 4:3/3:2/1:1 can be selected.
  • Exif information is embedded to the captured image from the 4K video.
  • Marking function is available enables marker setting on the designated point while recording video and users can jump to the markers when playing back the video to capture the frame they want.
  • Loop Recording function is added, with which the camera keeps on recording video while deleting the old footage automatically.
  1. 4K/23.98p/100Mbps mode is added in MP4 video recording.
  2. The upper limit of the ISO sensitivity can be set in the menu of ISO sensitivity setting and emission amount of flash light can be adjusted in the menu of exposure compensation.
  3. Focusing performance of 1-area AF in video recording is improved.
  4. Tracking performance of tracking AF when used with the interchangeable lens H-FS14140 is improved.
  5. Remote shooting via USB tethering is available by using PC software “USB Tether” supplied by Promote Systems.


Having been working in the video business since 1988 I have amassed a great amount of knowledge of both the kit and production values over the last 30 years.

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