Technique of oil painting and preservation of paintings

[Seriy]

The number of pigments on the market is very limited. It's like medicine - a lot of names, and existing substance-times, and two's all.
The road from a low-cost line only sometimes different type of pigment-the same cadmium, which budget lines is replaced by synthetics, although many companies and cadmium-cobalt generally excluded from them and an expensive line of synthetics. Basically, the economy worse line-mill, less dye, thinner, simpler packaging, and the pigment is the same, from the same barrel as in the road line.
Some pigments are cheap and there is no point in buying expensive-ocher, Mars - iron oxide pigments, chromium oxide, all of it is the same, do not see the slightest difference. And there is the same as magenta, pink pigment in the budget lines should lightfastness 1 stars, while the expensive product of 3 stars.
Personally, I did try that-t e Kohler buy some expensive, some - cheap. While the 3 star organic pigments believe weak.