Does the frame at least follow the speaker?

It does, so a single speaker moving across a wide shot is kept rather than lost. The loss is the surrounding picture, not the subject.

Which shape loses the least?

16:9 loses nothing because it is the original shape. Then 1:1, then 4:5, then 9:16, which loses the most.

What about two people at opposite edges?

That is the hardest case. Split screen on paid plans is the option that keeps both.

Can I add the sides back with blur?

Blur fill puts the whole picture in a tall frame with a soft fill above and below, so nothing is cropped. The picture itself is smaller.

Does a wider original help?

It gives more room to follow a moving subject, but it also means more is discarded. Framing tighter at record time is the better answer.

Can the sides be kept another way?

Blur fill keeps the entire picture at reduced size, so nothing is cropped away. The subject is smaller as a result.

What Gets Lost Cropping 16:9 to 9:16

How much of a wide frame survives?

About a third of the width at full height. A 16:9 picture cropped to 9:16 keeps roughly 32 percent of its horizontal information. Everything at the left and right edges goes, which in practice means second speakers, on screen graphics, and anything the presenter was standing next to.

What typically lives at the edges

Roughly 32 percent of the width survives a 9:16 crop at full height. Everything at the left and right edges is in the discarded two thirds.

Element	Usual position	Survives 9:16?
Second speaker	Left or right third	No
Lower third name graphic	Bottom, often wide	Partly, and often covered anyway
Channel logo	A corner	No, or it lands oddly near the middle
Slide or screen beside the speaker	One half of the frame	No
The speaker themselves	Centre	Yes, and the frame follows them

What usually sits at the edges

In typical recordings, the edges hold second speakers, hand gestures, background details, on-screen graphics and objects being demonstrated. When cropping to vertical, these are the first things lost. Knowing that helps you decide whether a vertical crop suits the moment.

Preview the crop before committing.

Shapes that keep more

Square keeps a little over half the width, and 4:5 a bit less. They fill less of a phone screen than 9:16 but keep much more of the scene.

Choose them when edges matter.

Filling the sides another way

Instead of cropping, you can place the full wide picture in the middle of a tall frame and fill the space above and below with a blurred copy or a colour. The whole scene stays visible, though smaller.

Use the extra space for text.

Recording to lose less

Keep important elements near the centre during recording, seat people closer together and hold objects in front of the body rather than to the side. These habits make vertical crops keep what matters.

A wider original with room around subjects helps too.

Two people at opposite edges

When two people sit far apart, a vertical crop can show only one at a time. Consider a layout that shows both or a wider shape for moments that need both.

For single-speaker moments, a vertical crop works well.

Deciding quickly

If the moment is about one person, crop. If it is about the scene, keep width.

The footage tells you which.

Know what leaves before it goes

List what sits at the edges. Logos, second people and lower thirds all live where the crop lands.
Check whether a wider shape saves it. 4:5 keeps noticeably more width than 9:16, and both are on every plan.
Decide before you record next time. Framing a wide shot with a vertical crop in mind costs nothing at the time.

Try one wide recording and see what the crop keeps.

Questions people ask

Does the frame at least follow the speaker?: It does, so a single speaker moving across a wide shot is kept rather than lost. The loss is the surrounding picture, not the subject.
Which shape loses the least?: 16:9 loses nothing because it is the original shape. Then 1:1, then 4:5, then 9:16, which loses the most.
What about two people at opposite edges?: That is the hardest case. Split screen on paid plans is the option that keeps both.
Can I add the sides back with blur?: Blur fill puts the whole picture in a tall frame with a soft fill above and below, so nothing is cropped. The picture itself is smaller.
Does a wider original help?: It gives more room to follow a moving subject, but it also means more is discarded. Framing tighter at record time is the better answer.
Can the sides be kept another way?: Blur fill keeps the entire picture at reduced size, so nothing is cropped away. The subject is smaller as a result.