Photosynthesis photography: Making images with living plant leaves

How to make photographs using plant leaves: the technique, examples, f/0.5 camera lens construction, and tips & tricks that I learned along the way. Inspiration for this project came from a 1970’s video made by The Royal Institution: Starch formation refs: responses of greenhouse ornamentals to interaction of irradiance CO2 and Video describing inkjet printed photomasks: A different technique to make leaf prints: Video from Alpha Phoenix on making photos with cyanotype: Ray optics simulator: Giant tweezers: https://