Simulated rain

I have photographed the red eye tree frog many times in my semi-annual frog and reptile workshop in St. Louis, but never with 'rain'. One of the young men assisting my photo tour group in Costa Rica with the frogs and reptiles used a hose to simulate rain, and the effect turned out to be very realistic. We were shooting on a covered terrace open to the outside, and coincidentally it was actually raining outdoors. I used a shutter speed of 1/200th, and it surprised me that with this relatively brief exposure time the streaks of water are as long as you see them here. My lens was a 100-400mm, and the aperture was f/9 with an ISO setting of 2500.