“Filming without someone's knowledge” in Japanese
Short answer
Filming without someone's knowledge in Japanese is “隠し撮り” (kakushidori). Full meaning: taking (a picture or video) secretly, taking a sneak shot, making a secret (video) recording, filming without someone's knowledge.
Other ways to say “Filming without someone's knowledge” in Japanese
隠し録り
kakushidori taking (a picture or video) secretly, taking a sneak shot, making a secret (video) recording, filming without someone's knowledge
隠し取り
kakushidori taking (a picture or video) secretly, taking a sneak shot, making a secret (video) recording, filming without someone's knowledge
かくし撮り
kakushidori taking (a picture or video) secretly, taking a sneak shot, making a secret (video) recording, filming without someone's knowledge
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