• Great post, I was not squinting nearly enough.

    What is the origin of this technique?

    September 21, 2011
    • Jerry Fresia

      I don’t know about the origin, but it is absolutely essential. The technique goes back at least to the 17th century with Claude Lorrain (google him or “Claude Glass.”)
      One way of understanding what one must see when one squints is to look into a black piece of paper covered by a normal pain of glass. The glass must be held in
      such a way so that one can see the subject matter being painted (one kind of looks backwards over one’s shoulder). When one looks into such a glass, much of the
      information is eliminated so it has the effect of squinting and it is very easy, then, to see value relationships (and where values separate; ie, lines). Given all of this,
      the practice is at least 300 years old.

      September 22, 2011
  • Very clear and concise posts that helps us understand WHY what we’ve been told all these years is “spot on”.


    October 04, 2011
  • This is one of the best articles I’ve read on this topic, Jerry. Much appreciated.

    October 07, 2011

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