VFX Atlas
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Zoom Blur

Zoom blur / zoom burst. 2010s: documented filter and photographic practice; optical history older

Typeface · Faster One

Joost J. Bakker: Zoom blur (2010), photographic zoom tracks.
Joost J. Bakker: Zoom blur (2010), photographic zoom tracks.Joost J. Bakker, CC BY 2.0; via Wikimedia Commons. Reduced. https://creativecommons.org/licenses/by/2.0View source ↗

Prompt

Apply a Zoom Blur effect with radial streaks extending outward from the main subject, mimicking a focal-length change during exposure. Keep the central focal area recognizable, lengthen streaks toward the edges, and blend existing colors into translucent directional trails with luminous highlights. Keep the original subject and composition.

Paste it into LetzAI with your own image to apply the effect ↗

Identify

Radiating traces extend outwards from the subject.

Principle

The focal length1 changes during exposure; filters simulate this.

Example

Joost J. Bakker: Zoom blur, 2010.

Try it out

Zoom in on a light source during a long exposure2.

Background

The zoom effect is created photographically by rotating the zoom ring during a longer exposure. Points of light or high-contrast contours trace radial paths. Digital filters extend this optical principle and allow for a freely selectable center point. The 2010s refer to the use documented here in photography guides and software, not the origin of the technique itself. The crucial factor is the change in magnification, not simply a blurred focus setting.

Distinction

A real zoom blur changes the image scale during exposure. A digital zoom blur is a simulation; a dolly zoom, on the other hand, combines camera movement and focal length changes with a different effect.

Aftermath

Similarly sounding zoom terms describe different image mechanisms.

Further examples · 7 images

Irfan View effect "Zoom blur" 54
02 Irfan View effect "Zoom blur" 54Rows of white text on a magenta background appear to burst forward. It demonstrates a digital zoom blur filter applied to high-contrast typography.User:Mattes · Public domain · Wikimedia Commons
Saddell Zoom Blur (4373913258)
03 Saddell Zoom Blur (4373913258)A dense pattern of green and yellow foliage radiates from a central point. The sharp radial lines represent a rapid change in focal length during exposure.Tom Parnell from Scottish Borders, Scotland · CC BY-SA 2.0 · Wikimedia Commons
Zoom effect
04 Zoom effectA vertical tree trunk remains relatively clear while the surrounding forest streaking outwards. This shows how a zoom blur emphasizes a central subject.Daniil Moerman (= user B166ER) · CC BY-SA 3.0 · Wikimedia Commons
Camera zoom burst on a Microsoft computer keyboard in Tuntorp 8
05 Camera zoom burst on a Microsoft computer keyboard in Tuntorp 8A computer keyboard shows high-contrast radial lines originating from a central key. The streaks illustrate how magnification changes during exposure transform distinct points into linear paths.W.carter · CC BY-SA 4.0 · Wikimedia Commons
AI illustration: A night cityscape shows colorful light streaks radiating from the center
06 AI illustration: A night cityscape shows colorful light streaks radiating from the centerA night cityscape shows colorful light streaks radiating from the center. The high-contrast traffic lights and building illuminations trace clear radial paths outward.Illustration generated for the Atlas (AI)
AI illustration: A central tree trunk remains sharp while the autumn foliage streaks towar
07 AI illustration: A central tree trunk remains sharp while the autumn foliage streaks towarA central tree trunk remains sharp while the autumn foliage streaks toward the edges. This illustrates the magnification change centered on the main subject.Illustration generated for the Atlas (AI)

Question

How can you distinguish zoom blur from a normal motion swipe?

Show possible answer +

The traces run radially towards a common center point.

Sources