I go no matter what the weather with my hardy Wista 4x5. It can rain/drizzle where I live for weeks at a time so waiting for good weather isn't an option, besides, shouldn't a rain forest be photographed in the rain? When it gets really gnarly in the winter at -20c with 70 km/hr northerly outflow winds, you can always find a quiet spot out of the wind in the forest or the lee corner of a pocket beach. I love wild weather!