Canon EOS REBEL T6S Instruction Manual page 252

Shooting Miniature Effect Movies
Playback Speed and Length (for 1-minute movie)
Speed
O (5x)
P (10x)
Q (20x)
Sound will not be recorded.

With Miniature effect movies, Movie Servo AF will not work.

Miniature effect movie cannot be set if movie digital zoom, video

snapshot, HDR movie shooting, 1+73, 1, or white balance
bracketing is set.
You cannot take still photos while shooting a Miniature effect movie.

Miniature effect movies whose playback time is shorter than 1 sec.

cannot be edited (p.306).
252
Shoot the movie.
5
The AF method will be FlexiZone -

Single to focus on the center of the
white frame.
The white frame is not displayed

while you shoot.
Playback Length
Approx. 12 sec.
Approx. 6 sec.
Approx. 3 sec.