Profile of a Time-Lapse Photographer

SFGate profiles time-lapse photographers Sheldon Neill and Colin Delehanty as they strenuously climb mountains to capture images that haven't been seen before.

Says Delehanty, "[My goal is] to make people curious about what's out there and realize that there's a lot of adventure to be had in their lives...I want to give it my all and go out and document things that no one else is. The last thing your body wants is to get up in the middle of the night. But something punches me in the face and says, 'You have to get up.'"

Read the full piece here. Watch their initial collaboration, "Yosemite HD," below.