How can I create slit-scan images with a DSLR?

Yes—there are a couple of practical ways to get a slit-scan look with a DSLR.

1. Use video and process it afterward. If your DSLR shoots video, record a clip, extract the individual frames, then build a new image by taking one row or column from each successive frame in editing software or a scripting environment. This is the most direct way to mimic digital slit-scan.

2. Exploit rolling shutter effects. Many modern DSLRs use a rolling shutter, especially in video mode. Fast-moving subjects or deliberate camera movement can create stretched/skewed distortions similar to slit-scan. This is the same basic effect often called the “jello effect.”

3. Do it optically with a physical slit and long exposure. For a more traditional approach, use a long exposure and a narrow slit so the scene is recorded progressively over time. This usually requires some kind of custom setup rather than a normal in-camera setting.

So: if you want controlled, repeatable results, shoot video and assemble the image later. If you want experimental in-camera effects, try fast motion, camera movement, or a custom slit setup.