Abstract: A collapsible canopy frame includes a plurality of side and central supports and a plurality of telescopic legs. A single activation feature provides for the extension and retraction, and the locking and unlocking of the canopy frame. A fixed bracket and a sliding bracket located at the upper end of each telescopic leg provide the connection of the telescopic legs to the side and central supports and to each other. The single activation feature includes an upper and a lower hub and when they joined together facilitate the extension and locking of canopy frame; as the lower hub is disengaged from the upper hub, the gazebo frame becomes unlocked and capable of being retracted. Each telescopic leg includes a plurality of telescopic sections that extend and retract through a cable system or a tape-driven system connected to the sliding bracket and which links the telescopic sections to each other.