This is an interesting exercise on many levels.
I have found it quite a useful third eye kind of tool. An outside the moment bubble and a chance to study your compositional technique.
At this point some Togs will just think I am mad, and to you I say, try it a few times. Then tell me Im mad.
These last few weekends I have been out with a good photography mate Lloyd Cosway, aka Devonshots.com. We have been on Dartmoor, on the beaches of east Devon and climbed the high cliffs of the South Hams. At each location, at some point I have shot my shot with my canon ixus 120is.
Canon 7d on its trusty Frotto legs and trigger head with kit bag close by.
I find myself studying my positioning for the composition. Focusing on how I might better the perspective or improve the image capture. The third eye acting as a critical friend looking over my shoulder suggesting alternative comps and better angles of attack. Interestingly it also highlights how careless I am regarding my kit bag full of my photographic toys. Valuable lenses dangerously close to certain doom and overlooked insurance issues. On many occasions I have left the bag unzipped and on the tilt. As I shudder at the thought of my precious wide angle plumeting 300ft down the cliffs I have just checked to see if my bag is zipped up under my desk...