poppy 3 UV340 Published July 12, 2018 at × in UltraViolet Photography with Hoya U340 Pentax K-1, Cassarit, Steinheil, Close Up Photography, Macro 1:2, Pentax Helicoid, Plant Photography, Poppy, Blossoms, UltraViolet, UltraViolet Photography, 340nm Photography, Hoya U340, S8612, Bishop CA