Foto 3D accepts images as JPEG, PNG, TIFF or BMP files. These can be downloaded from digital cameras or scanned in from prints. For good results the object needs to be 300 pixels across or more, so a camera with at least 1M pixels is recommended.
Foto 3D will automatically correct lens distortion for common consumer cameras. You can also calibrate the camera lens from photos using the lens calibration wizard. Some cheap cameras (particularly those on mobile phones) may have lenses that produce sufficiently distorted images to affect the shape of the geometry.