The Cha-Cha Method: One Camera, Two Shots, Real Stereo
Cha-cha is the poor stereographer’s rig: one camera, two shots — shoot, shift your weight sideways, shoot again. Named for the little dance, it costs nothing and works anywhere, within limits this guide states plainly. StereoPhoto Maker does the finishing.
The technique
- Frame the shot and note a foreground anchor at the frame edge.
- Take the left photo.
- Shift the camera sideways — roughly eye spacing for near subjects, more for distant ones — keeping it level and at the same height. Rocking sideways from the hips (the cha-cha) keeps height constant better than stepping.
- Take the right photo, reframing on the same anchor.
Rules that decide success
- Nothing may move. People, animals, water, foliage in wind, clouds crossing the sun — any change between shots becomes a stereo defect no alignment pass can remove. Cha-cha is for still life, architecture and calm landscapes.
- Level and height are everything. Vertical error is the one your eyes cannot forgive (eye strain guide). A grid overlay or bubble level earns its keep here.
- Fixed settings. Same focal length, focus and exposure for both shots — switch to manual if the camera wants to help.
Finishing in SPM
Open the pair, run auto alignment, set the window, and save. Cha-cha pairs typically need slightly larger corrections than rig pairs; if the report shows big rotation or size fixes, treat it as technique feedback for next time. Wiggle GIFs are a natural cha-cha output — see the wiggle GIF tutorial.
Cha-cha versus a rig is not a quality contest: the rig exists because cha-cha’s one rule — nothing moves — excludes most living subjects. Use each where it works.