With the Conservation in Focus of Michelangelo Merisi da Caravaggio’s Crucifixion of Saint Andrew closing this week, it is natural for a visitor to have lingering questions. Here is a process ordinarily unseen. The curious visitor to the focus gallery will find in the installation a desk with question cards, for your inquiries about the painting, about conservation, about really anything at all. You’ve asked and we’ve let you know. Here are some of the most asked questions from the exhibition run.