Got nice and steady winter footage from mass start of Finlandia-Hiihto Cross-Country 50k competition here in Lahti, Finland. Mavic pro worked fine in -17c freezing tempature. Cold seem not to effect on flying, only got one cold warning on second battery. Samsung galaxy s7 pickier about cold and flashed too many times that it was too cold to recharge battery. And i have to each time close warning message.. little bit annoying with cloves on Ground footage was shot on galaxy and slow-mo on Yi 4K+ Action camera.