Let there be light

Let there be light from Kamil Tamiola on Vimeo.

An interesting and informative video from Kamil Tamiola, an 'adventure photographer' who photographs in the Alps at night. It is full of useful planning tips and explanations of method, admittedly in an extreme environment, but these are fundamental principles of photography.
I particularly enjoyed the small lecture on the inverse square law of illumination, a fundamental law of physics, delivered at sub-zero temperatures, a gale and altitude.
And that's the trick - keeping cool, methodical, in control and creative in difficult environmental conditions.