On Wednesday, August 15, 2012 2:46:13 PM UTC-4, son_of_flubber wrote:
On Wednesday, August 15, 2012 2:35:18 PM UTC-4, 2G wrote:

We were both flying near cloud base at the same altitude in opposite directions.

This is the scenario that prompted my original post.

I would add that if you're underneath a cloud then you are by definition NOT in direct sunlight and your background in many cases will be a dark cloud. Please post a followup if you install a light.