This was an amazing room in the Chihuly Garden and Glass exhibit in Seattle. Hidden among what must be over a hundred  pieces of beautifully blown glass are a few clear glass cherubs. The lighting level throughout the exhibit halls was quite low but Kathy and I were very successful in creating images using our Sony camera's "handheld twilight" function which is essentially dark frame subtraction on steroids. This makes it possible to produce one extremely low noise file from 6 photos automatically taken at very high ISO settings, which are then very quickly aligned and merged. This extremely powerful function was very desirable in this setting since we didn't want to use a flash when photographing the glass as that would probably ruin the ambiance and result in lots of reflections and unwanted specular highlights.