Dandelion, two images, left normal, right shows contrasting center visible only in ultraviolet light Dandelion, taken with a full spectrum camera unfiltered on left, filtered with a UV-pass filter on right

Ultraviolet Dandelion

Spring has finally progressed far along enough that I have some subjects for my ultraviolet-sensitive camera. Many flowers have ultraviolet (UV)┬ánectar guides. Nectar guides are patterns on the flower petals that are only visible to animals that can detect ultraviolet light with their eyes, typically pollinating insects. The darker sections tend to be in the […]