> IMHO the single most important thing digital provides is new ways to see - I'll often direct students to use the threshold filter to discover new lighting sha

> IMHO the single most important thing digital provides is new ways to see - I'll often direct students to use the threshold filter to discover new lighting shapes in references or indicate planning problems with their value structure. Completely agree. The hidden structures of an artwork are pretty much invisible with access to some flavor or other of a digital tool. I believe that Rembrandt would have killed to have the ability to photograph his work and apply a de-saturation in order to see its lightness map. In fact... he did something similar... view his paintings in candle light, which does indeed almost de-saturate his colors. Likewise, any decent Impressionist would have loved to be able to create a Saturation map using Photoshop's Selective Color adjustment.