I heard that colored pencils use wax (or clay) as a pigment vehicle, and crayons (wax pastels) use wax as pigment vehicle.
I found recently that crayons are mind blowingly cheap (96 crayola crayons for $6), whereas colored pencils tend to go for at least $2 for a pack of 24.
I am starting to think I should just switch to crayons for when I need to get some color down, especially if I intend to take photographs of them rather than frame them.
I tried searching for what the differences between crayons and colored pencils were, but I couldn't find anything.
My question are:
- Are there any drawbacks to blending crayons with pencils (such as crayola/prismacolor scholar)?
- Are there any drawbacks to using crayons over pencils?
I couldn't find any lightfastness information, and can't think of any reason for them to behave any differently than a typical pencil other than not having wood, and being softer.