When low fog fills up at a peak and then dips down into a valley it is referred to as Cloudfall as it mimics the flow of a waterfall. The surrealism of seeing the motion of the fog slide though the Observatory as the pre-dawn lights provided a glow from underneath was a dream. This moment literally lasted long enough for me to capture this long exposure before the fog pushed in and engulfed the entire Observatory. Camera: Nikon D750 Lens: Sigma 150.0-600.0 mm f/5.0-6.3 DG OS HSM Shutter speed: 10 sec Aperture: f/8 ISO: 160 Focal length: 170mm City: Los Angeles Edition: 1/1 Year: 2021 Photographer: Brandon Yoshizawa Content: Cityscape Photography License: Extended Editorial