Powerphase FX: Stepping and Discontinuities
If the images contain broken, stepped or jittery edges, then the camera or subject may have moved during the scan. You may also see some discoloration in the lines of your image where the camera or subject has moved.
Sample on moved or bumped image during scan: Place your setup away from large vibrating machinery, and keep light subjects out of strong drafts. Nearby roadwork or traffic should not affect the scans. If you consistently see these effects in your images even when your camera has not moved, th...