Swamp in UV. Taken May 2nd 2023.Pentax K-1 full spectrum modified by Kolari Vision. 85mm metal EL-NIKKOR enlarging lens with 2mm thick Hoya U360 (visible light blocking) and 2mm thick Schott S8612 (IR blocking) filters stacked. UV is only about 3% of sunlight. High ISO and long exposures are usually required.
ISO 1600, F8 at 5".
Thanks for looking,
barondla