在南極點, 零下70度拍攝極光。
A longtime contributor to Spaceweather.com, Robert Schwarz is a pioneer in cold-weather astrophotography. At the South Pole, temperatures routinely drop below -70o C. Modern DSLR cameras are not made for such temperatures. LCD displays freeze instantly, mirror mechanisms get stuck, batteries fail, and time-lapse sequences often end after only 30 or 40 frames. To mitigate these problems, Robert has developed heated camera housings and motorized trackers with insulation, allowing his optics to follow the pirouette of the stars overhead even in deep Antarctic cold.
https://www.youtube.com/watch?v= ... f-QV2M7inT6Hdn7cKmM