This is a topic that I have been researching for quite a while, so I thought I would bring it up with some of the experts here on the forum. I am trying to achieve the beautiful luster that is present in handcrafted Italian men's shoes. The French shoemakers also do this effect on shoes and call it "patine e glacage" (most notably a brand called Berluti).
A picture is worth a thousand words, so I have posted a few sample images.
Though on the basic level, I know that antiquing and color variations can be achieved by using different coats of lighter and darker dye with a carnauba wax finish, experience shows me that you cannot quite get that lovely transition of color that way, as dyes tend to have a more blotchy demarkation instead of the "brush off" effect that is present with these Italian shoes. it would seem that the Italian shoemakers use a combination of creams, polishes, acetone (to lighten already dyed leather), special crust calfskins, and burnishing brushes. It still escapes me, however, how they are able to get those subtle shading effects in areas like perforation holes, in the stitching areas and around the tip and heel. From what I can tell -- and from extensive experimentation -- this simply cannot be achieved using conventional dyes or antiquing products. I have tried using dark shoe creams and polishes over a lighter dye and it simply doesn't darken the areas where they are applied. I wonder, therefore, what they are using to get those deep "chiaroscuro" effects on the leather.
Does anyone have experience of suggestions to provide?