Why a tablet makes a great tracing lightbox
A physical lightbox costs $30 to $150 and takes up drawer space. A modern tablet or laptop at full brightness produces more than enough even light to trace through standard 80gsm printer paper, tracing paper or thin sketch paper. The advantage is you already own the device and the light intensity is adjustable.
For thin tracing paper (under 50gsm), 70-80% brightness is enough and reduces eye strain.
For thin tracing paper (under 50gsm), 70-80% brightness is enough and reduces eye strain. For standard printer paper (80gsm), use 90-100% brightness. For thicker drawing paper or Bristol board, you may need to thin the paper or use a truly transparent layer because even maximum screen brightness may not fully penetrate. Place a sheet of clear plastic between the screen and paper to protect the display from pencil indentation.
Tracing workflow for artists and designers
Open your reference image on a second device or print it out, then lay it flat on the screen with tracing paper on top. The white screen backlight shines through both layers, making pencil tracing easy. Calligraphers use this to trace practice letters, embroidery designers trace pattern outlines, and tattoo artists often trace stencil drafts before transferring. Rotate or zoom the reference image as needed without disturbing your paper.