Nice demo Marc...
This brings up something which irks me whenever I see it (which is all the time when out in Yosemite and similar places)... People with obviously expensive lenses (big, constant f/2.8 zooms with VR/IS by the looks of 'em) walking around taking photos with the hoods reversed. If they simply left the hood at home, I could understand it - maybe their pack is too full for the bulk of the hood, maybe they don't like the look of a hood... but they brought it - it's right there!... Reversed, adding weight, obstructing part of the zoom ring looking bloody ridiculous, but not helping with the images they're taking, or protecting the front of the lens since they can't be bothered to spend two seconds turning it around!!! Arrggggg!
Sorry for the rant
. I know it's not
you... hmmm well I'll just assume Pentax shooters wouldn't do this since I've never actually seen another of us "in the wild" I don't know for sure
...
BTW, these same people will walk a trail, snapping wildflower shots by the dozen without so much as kneeling down - I can't imagine what they're getting from head high, but I doubt it's all that interesting.