← GlossaryEditing & SocialRelated terms
Aspect Ratio
The width-to-height shape of your frame: 16:9 horizontal for MLS/YouTube, 9:16 vertical for Reels/TikTok/Shorts, 4:5 or 1:1 for feed posts.
The one-shoot answer: film horizontal 4K with your subject center-framed, then crop verticals — or run a dedicated vertical pass on hero shots.
Why it matters for your listings
Posting horizontal video into a vertical feed hands the platform a reason to bury it. Match the frame to the surface, every time.