Arteza Lightfastness Test

Arteza Expert Colored Pencils – 72 count – Lightfastness Test

Here’s the image of my colour chart after 30 days exposed to sunlight. The column at the left was covered and the one at the right was exposed to the sun.

I was amazed to see some colours completely disappear within only 30 days in my window! Take a look at yellows, oranges, pinks and purples that changed or simply vanished. Some colours were erased even in the column that was covered.

Click on the image to enlarge: