Thank you for the details... now we're getting somewhere.
...not with me however as I have not updated my GP to v 4 and am unfamiliar with the menu structure and selections available with the update. Your settings however, look straightforward.
There is a lot of discussion on exposure and other issues with v 4 on this board, but many GP users of any version in general have been using lower EV settings (to -2) and ND filters up to ND32. If ISO was locked at an inappropriate value in v 4, that would certainly require ND filters.
Release notes for v 4 are below. Perhaps if you don't need any of those features, you may want to go back to v 3.x. In v 3.x, in Video mode, menu settings are separate for Video and for Photo - I don't believe you could be confusing those. v 3.x is said to be more "automatic", whereas v 4 has been applauded by
real cinematographers as having infinite control.
Perhaps someone else who has solved this problem, and is running v 4, can help you.
HERO4 Black/Silver update v04.00.00
Performance Improvements
- Protune™ improvements:
- Adds the ability to lock the shutter speed for greater control under different motion and lighting conditions. The Shutter setting is available for videos.
- Adds additional White Balance settings to allow for finer adjustments when optimizing for cool or warm lighting conditions. Available for videos and photos.
- Adds additional ISO control settings. Adds additional ISO options, adds the ability to lock the ISO setting for video and set an ISO range for photo capture.
- Adds additional Bluetooth functionality to support the Works with GoPro program.
Usability Improvements
- Adds the ability to add/remove HiLight Tags directly from the touchdisplay*
- Adds the ability to quickly move to the next or previous HiLight Tag in a video*
- Media filters** add the ability to sort content in the gallery (thumbnail) view by videos or photos so you can find specific content faster. Filters, the slideshow option, and the ability to delete multiple files can be accessed from the Menu icon in gallery view.
General Improvements + Bug Fixes
- Fixes stability with video playback over HDMI
- Improves time lapse stability and interval accuracy
- Improves camera and smartphone reconnections
- Fixes intermittent audio issues with Periscope
