To dream of using a video camera represents committing an experience to memory. Noticing or remembering every single thing that you're witnessing. It may also represent your attempt to document an event or entire process for later use. There might also be a lot of information or details that you want to share with others.
A video camera may be a sign that you don't want to forget a large amount of information that you're being presented with. You don't want to miss anything.
To dream of a hidden video camera represents your attempt to observe or keep tabs on someone in stealth. Keeping a close eye on someone without their knowledge. Alternatively, a hidden camera may reflect behavior that is nosy or bordering on stalking. Invading others privacy or inappropriately paying attention to people you know you shouldn't be.
Example: A man dreamed of using a video camera to film a wedding. In waking life he started a journal about everything that was happening to him with a new work project.