I keep wanting to post a comparative flare/low flare test for illustrative purposes (my personal testing is low flare which matches the conditions of most of my photography) but interestingly I'm having quite a hard time coming up with a suitable test with flare, one that is otherwise identical to or at least similar to my low flare tests. Intuitively this seemed simple to construct, but I'm still stumped. Essentially I need to photograph some type of calibrated grey scale against a white background but this is not as easy as it sounds. Just some thoughts on test conditions.