The Zig signature photo pen contains acid free ink and is specifically designed for use on both the back and even the front of photographs and transparencies.
Both professional and amateur photographers can sign their photographs safely with this photo pen. Use to record names, dates and occasions on photographs ensuring this information is never lost or forgotten. The ink allows long term recording with no fading of the details.
You can always scan the original photograph in a high resolution and write on the copy if you do not wish to write on the original.
It is photo safe, permanent, non-scratch, fade resistant, water resistant, dries quickly and will not smear once dry.
Also ideal fo use for writing on CD's, overhead slides or any shiny surface.
Tip is 0.5mm fine point. BLACK photo pen