The Ken Burns effect is a slow pan, zoom or both across a still photo, so the picture moves on screen without any new footage being made. In a business photo video it stops listings and products looking frozen and leads the eye to what matters. Use it well by moving toward the subject, slowly, by a few per cent, and never under text. Videngine applies a slow zoom to every photo scene automatically.
What the Ken Burns effect is, and why it helps
The Ken Burns effect is a pan and zoom effect: the frame starts on one crop of a still photo and moves smoothly to another while the photo is on screen.
Apple uses the name in its own software. Apple’s iMovie guide for Mac explains how to add the Ken Burns effect to a clip or photo with a Start frame and an End frame, and the Final Cut Pro guide calls it a pan and zoom between start and end positions you define. Other tools simply say pan and zoom.
- It stops a still looking frozen. A photo that sits motionless for four seconds can read as a stalled player; a slight, steady move keeps photo motion in video consistent from scene to scene.
- It directs the eye. A frame that drifts toward the front door, the badge on a bonnet or the label on a bottle points at it without an arrow.
It adds no information, which is why it suits listings and products where the picture is evidence. AI image-to-video, by contrast, generates frames that were never photographed; our comparison of image-to-video AI and slideshows sets out the difference.
Four moves, and which photo each one suits
Choose each move from what the photo needs to show.
| Move | What the frame does | Property photo | Vehicle photo | Product photo |
|---|---|---|---|---|
| Slow push in | Starts wide, ends closer on the subject | Front of the house, ending on the entrance | Three-quarter view, ending on the grille | Hero shot, ending on the product |
| Pull out | Starts on a detail, ends on the whole scene | From the fireplace out to the room | From a wheel out to the whole vehicle | From a texture out to the full item |
| Pan across | Moves sideways or up at the same size | A wide living room or a long garden | A side profile of a van or coach | A row of colours or a range shot |
| Pan to a detail | Moves to one feature, often with a slight zoom | From the kitchen to the new range cooker | From the dashboard to the mileage reading | From the product to its clasp, port or label |
| Hold, nearly still | Barely moves, so text stays readable | Floor plan or energy certificate | Specification sheet or service record | Size chart or ingredients panel |
The push in is the safe default because it ends on the subject. Save the pull out for an opening or closing reveal.
How to use the Ken Burns effect well
Move toward the subject, slowly and by a small amount, with one move per photo and none under text.
- End on the subject. A push in that ends on a blank wall, or a pan that drifts off the car into the car park, points at the wrong thing.
- Keep it slow. Spread one eased move across the whole hold. If the viewer notices the camera before the subject, it is too fast.
- Keep the zoom small. Under about 10 per cent across a three or four second hold reads as motion; more crops the edges and exposes softness.
- Hold text still. A floor plan, a specification sheet or an on-screen label is hard to read while it drifts.
- Check the safe area. In a vertical cut, captions and platform buttons cover parts of the frame, so keep the subject inside the safe area at both ends of the move.
Resolution headroom: zooming in needs spare pixels
A photo has to be larger than the video frame by at least the amount you zoom in, or it softens as the move goes on.
A 1080p landscape frame is 1,920 × 1,080 pixels, so a photo that fills it needs 1,920 pixels on its long side. Zoom in by 10 per cent and the last frame shows about 91 per cent of the photo’s width stretched across 1,920 pixels, so the photo needs 2,112.
| Zoom across the scene | Long side needed for a full 1080p frame | Verdict |
|---|---|---|
| None, held still | 1,920 px | The baseline for any 1080p video |
| 8 per cent | About 2,075 px | Videngine’s maximum for a photo scene |
| 10 per cent | 2,112 px | A comfortable slow push in |
| 20 per cent | 2,304 px | A visible move; needs good originals |
| 100 per cent (2×) | 3,840 px | Needs a 4K-sized original |
Many websites serve resized copies of their photos to load faster, so Videngine asks for the original first. Photos under 1,920 pixels on the long side are enlarged with a Lanczos filter and a light sharpen, never more than 3×. Each photo is graded on its original long side (sharp at 1,600 px or more, ok from 1,000 px, low below that) and the studio flags the soft ones. Enlarging cannot add detail that was never captured, so replace a flagged photo where you can.
Which tools offer pan and zoom on photos
Apple’s iMovie and Final Cut Pro both name the Ken Burns effect; other editors and slideshow apps use their own names, so check each tool’s help pages.
| Tool | How the effect is applied | What you control |
|---|---|---|
| iMovie on iPhone | Applied to the photos you add to a project, according to Apple’s iPhone guide | Start and End framing by pinching and dragging; tap Ken Burns Enabled to turn it off for a photo |
| iMovie on Mac | Select a clip or photo, click the Cropping button, then the Ken Burns button | Drag and resize the Start and End frames, then click Apply |
| Final Cut Pro | A crop effect with one setting at the clip’s start and one at its end | Green start and red end rectangles, Swap, and easing (Ease In and Out by default); the default move is a small zoom to the centre |
| Videngine | Applied by the template to every photo scene | A slow zoom of up to 8 per cent and a short fade in, set once, not per photo |
A workflow for pan and zoom in a business photo video
Plan each move before touching any controls: subject first, then direction, then size.
- Cull and order the photos from wide to detail; our guide to making a slideshow video covers order and timing.
- Get the originals and replace anything under about 1,000 px on the long side.
- Mark the subject in each photo: the thing the move should end on.
- Pick a move from the moves table: push in by default, hold for text.
- Set the start and end frames so the move ends on the subject within about 10 per cent zoom.
- Check each cut separately. A move framed for 16:9 can lose the subject in 9:16; see our vertical slideshow guide for landscape photos in a vertical video.
- Watch it on a phone and slow any move you noticed before the subject.
How Videngine applies it, and when to use an editor instead
Videngine gives every photo scene the same restrained motion automatically, which suits many videos from one template, not one hand-finished film.
Each photo scene gets a slow zoom of up to 8 per cent and a short fade in. A photo that does not fit the frame, such as a landscape listing photo in a 9:16 cut, sits over a blurred fill of itself, so the subject stays in view. Motion, typefaces, colours and logo are set once in a coded template, so the hundredth video moves like the first.
The source (a URL, a CSV or JSON row with photo URLs, or a sitemap) supplies the photos and facts; Videngine adds a script, narration, captions transcribed from the finished audio, and a 9:16 and a 16:9 cut, each reviewed in the studio. The slideshows overview covers the whole job, and our photos to video guide covers order, timing and narration. On launch pricing, plans start at $79 a month for 50 videos.
When Videngine is the wrong tool
- One hero video with hand-set keyframes. If each move must be placed by eye, use a timeline editor such as Final Cut Pro or iMovie. Videngine has no timeline.
- A birthday or wedding slideshow set to a song. A free consumer tool such as your phone’s photo app, iMovie, Google Photos or Canva fits better; Videngine makes narrated videos and has no free plan.
- Making a still come alive. Videngine moves the frame across a photo, not anything inside it. That is AI image-to-video.
Questions about the Ken Burns effect
What is the Ken Burns effect?
The Ken Burns effect is a slow pan, zoom or both across a still photo, set by a start framing and an end framing. It makes a photo move on screen without changing what it shows. Apple uses the name in iMovie and Final Cut Pro; other tools call it pan and zoom.
How do I add the Ken Burns effect in iMovie?
On iPhone, iMovie applies it to the photos you add to a project; tap Start and End to set the framing, or tap Ken Burns Enabled to turn it off. On a Mac, select the photo, click the Cropping button, click the Ken Burns button, then drag and resize the Start and End frames and click Apply.
How much should I zoom in on a photo in a video?
Keep the zoom small: under about 10 per cent across a hold of three or four seconds reads as gentle motion without cropping much of the photo. Videngine’s slow zoom goes up to 8 per cent across a scene.
Why does my photo look blurry when the zoom effect plays?
The photo does not have enough pixels for the zoom. Zooming in needs the photo to be larger than the frame by the same proportion: 2,112 pixels on the long side for a 10 per cent zoom in a 1080p video. Use the original file rather than a resized web copy, or reduce the zoom.
Is the Ken Burns effect the same as AI image-to-video?
No. The Ken Burns effect moves a frame across the real photo, so everything on screen was photographed. AI image-to-video generates new frames from a still, inventing motion that never happened. For listings and products, where the photo is evidence, the Ken Burns effect is the safer choice.
Choose your next step
Pan and zoom is one part of a photo video. These pages cover the rest.
Build your video workflow.
Bring one representative photo set, a listing or a product, and the formats you publish. Agree the motion and scene plan on that set first, then repeat it across the rest.
Join the waitlist ↗Published by Videngine, a video rendering product built and run by Wall & Fifth. External links refer to the original documentation or product descriptions; examples are illustrative unless stated otherwise.