Camel Artists Oil Paints Open Stock. Shades are available individually in 67 brilliant shades as open stock in 20ml, 60ml and 120ml tubes Camel Artists' Oil Paints are reputed for purity, quality and reliability. They contain the maximum pigment content, microscopically ground and combined with non-yellowing oils and a unique plasticizer to give a smooth, non-cracking film with brush or palette on canvas. They are available in 67 brilliant shades. See also: Camel Artists' Oil Paints Sets