Tom's Thumb Trail loop hike, January 29, 2012 - heading north-east on Gateway Loop Trail. Tom's Thumb in the distance. 1/800 s, F4.5, ISO 80 Exposure Program: Auto, Metering Mode: Multi-segment, Exposure Program: Program normal White Balance: Auto Focal Length: 12.8 mm (60 mm) Camera: Panasonic DMC-LX5