Why Vertical And Horizontal Video Fight Each Other

Video is shot in a fixed frame shape, and screens are held in two orientations. Reconciling them always costs something.

Aspect ratio is fixed at capture

The sensor area used during recording determines the frame's proportions. Nothing recorded outside that area exists.

Changing proportions afterward means either discarding part of the frame or adding area that was never captured. There is no third option.

This is why reframing decisions ideally happen before shooting rather than in editing, where the available material is already limited.

Cropping discards the sides or the top

Fitting a wide frame into a tall one removes most of the horizontal field. A composition placing two people at opposite edges loses one of them.

Automatic cropping tracks a subject and pans within the frame, which works for a single centered speaker and fails for anything else.

Wide establishing shots suffer worst, since their entire purpose is showing spatial relationships that cropping destroys. A tall crop of a landscape shows a narrow slice with no sense of what surrounds it.

Padding preserves the frame and wastes the screen

Adding bars above and below keeps the original composition intact. It also shrinks the picture into a strip on a tall screen.

Some approaches fill the bars with a blurred, enlarged copy of the frame. That avoids empty black areas and adds nothing informative.

The blurred fill also costs bitrate, since it occupies encoded picture area while contributing no detail. That data comes out of the budget available to the actual picture in the middle.

Delivery targets differ in what they favor

Phone-first feeds are viewed vertically and full screen, so tall video occupies the whole display. Wide video appears as a small strip.

Televisions and computer displays are horizontal, so vertical video there sits in a narrow column with large empty areas beside it.

Material intended for both is either shot with reframing in mind or produced twice. Neither is free, and producing twice doubles the editing as well as the shooting.

Shooting wider than delivery preserves options

Recording at higher resolution than the delivery format leaves room to crop and reposition without softening the result.

Framing with safe areas in mind, keeping essential action within the region that survives a crop, allows a single capture to serve several outputs.

The constraint is that a frame composed for two shapes at once is usually optimal for neither. Compromise framing looks loose horizontally and cramped vertically.