Transitions you build rather than drop in

The default position

A hard cut is right roughly nineteen times in twenty. A cross-dissolve means time has passed or we have moved to a different mental space, and it means only that.

Everything else in the transitions bin — cubes, page peels, glitch presets, light leaks, star wipes — is a signal that a decision has not been made about what the cut is for. Using one to smooth over a cut that does not work produces a bad cut that now takes longer.

That said, there are transitions worth building, and they are built rather than dragged in.

The dissolve, properly

Two things people get wrong.

Length. The default is usually one second, which is long. For a scene change, 12 to 20 frames is often enough. A long dissolve is a statement about how much time passed; use it when that is what you mean.

Placement. A dissolve centred on the cut point consumes handles from both clips. If either clip is at the limit of its source, the editor either refuses or shortens the dissolve without telling you. The trim lesson's point about handles applies here.

And the mechanism: during a dissolve both images are visible at partial opacity, so a dissolve between two busy shots produces a moment of visual noise. Dissolve between shots that are compositionally simple, or where something in both occupies the same part of the frame.

The match cut

Cutting between two shots where something in the frame — a shape, a movement, a colour — is in the same place in both. The eye follows the continuity and the cut becomes a transformation rather than a break.

A round mirror to a round clock. A hand reaching down to a hand reaching up. A pan that ends moving left cutting to a pan that begins moving left.

This is free, it requires no plug-in, and it is the most satisfying transition in editing. What it requires is that you notice the shape while logging — which is one of the things the logging pass is for.

The whip pan

End the outgoing shot with a fast pan, start the incoming shot with a fast pan in the same direction, and cut in the middle where both are motion-blurred beyond recognition.

If you did not shoot it, you can fake it: add a fast directional blur and a rapid position move over the last 4–6 frames of the outgoing shot, and the mirror of it on the first 4–6 frames of the incoming one. It is four keyframes and a blur, and it holds up.

The masked transition

Something in the frame passes across the lens — a person, a door, a pillar — and at the moment it fills part of the screen, the shot behind it changes.

Build it by masking along the edge of the passing object and revealing the second shot behind it. The mask usually needs to follow the object, which is a track or a short rotoscope.

This is what most "seamless transition" tutorials are actually teaching, and it is genuinely effective when the piece calls for energy.

The morph cut, honestly

A feature in Premiere and, under other names, elsewhere: it attempts to hide a jump cut in a talking head by generating intermediate frames that morph one position of the face into the other.

When it works — small movement, plain background, short gap — it is invisible and very useful. When it fails, the face distorts in a way that is considerably worse than the jump cut would have been.

It is also, mechanically, generating frames of somebody's face that they did not perform. For a corporate talking head this is uncontroversial. For journalism or anything where the recording is a record, it is worth thinking about before it becomes routine.

The practical rule: use it, check it at full speed, and have the jump cut ready.

Audio transitions are not optional

A hard cut in picture with a hard cut in sound is what makes an edit sound like a slideshow. Every audio cut wants a short cross-fade — even two or three frames — to avoid the click that a discontinuity in the waveform produces.

Most editors can apply a default audio cross-fade to every cut at once. Find that setting and turn it on.

And the J and L cuts from the second block are, properly understood, the most important transitions in this course. They do more for how an edit feels than any visual effect.

The test

Before adding any transition, ask: what does this tell the viewer that a cut would not?

If the answer is "time passed", use a dissolve. If it is "we are somewhere else now", use a dissolve or a fade. If it is "I wanted this to look more dynamic", cut.

Today

Go through something you have made and replace every transition that is not a cut or a dissolve with a cut. Watch it. Then put back only the ones you miss.