You are hiking and shooting on a cliff and you slip and fell. You managed to save yourself with one hand over the cliff. Hanging on one hand, your camera and a bag of exposed film is about to fall over the cliff. Which one will you "save"? You have only got one spare hand to grab whatever's about to fall over.
Assume you are damned fit and strong and can hold on with one hand for a long time.
Assume you are damned fit and strong and can hold on with one hand for a long time.