A lifetime of memories.
Dark stability describes the resistance to change due to environmental factors of heat, ozone and humidity. Dark stability is critical because in the long term,
over 90% of all professional and consumer prints are stored in the dark (albums). Dark stability testing is performed according to the Arrhenius methodology as detailed in ISO 18924 and the methods of the newly published ISO 18936 on thermal testing. Based on this testing, an image produced on true photo paper, properly stored in the dark in a typical consumer home environment, will last over 200 years before showing a noticeable change.
Inkjet vs. True Photo Paper