It was incredible to me how clearly the shadows could be seen against the snow last night.
The sun and the moon have the same angular size as seen from earth, which is why we can have total solar eclipses with that gorgeous “diamond ring” effect. (I wonder what the probability of that happening without Someone arranging it is … hmmmmmm …). So a moon shadow is just as “sharp” as one cast by the sun. Ordinarily, the contrast is lacking, which is why really striking ones like the ones you’ve photographed need a full moon (and a clear night, since clouds diffuse the light and soften or even obliterate shadows). However, if you’re taking a photograph, you can always “up” the exposure and integrate the light, resulting in as much shadow contrast as you want. The limit to this “integration” approach to photographing shadows is that you need everything to stand still; otherwise, if the tree is stirring in a breeze, the “integrated” shadows are again wiped out. Winter nights, though, are often quite still.
I sure love optics! (And He who said “Let there be light” isn’t a bit bad, either.)
Jim, thanks so much for your information. I may be getting back to you with some photography questions. I have to tell you, though, at first your comments made me laugh. Laugh, you say? Why?
Because if I didn’t know better, I would think that your comment was left by my husband. Not that optics are his field, but he is an engineer.
It’s quite the joke around here that engineers absolutely must understand how everything works, even if they have to take it apart to figure it out.
You do know that engineers are born, not made, right? I am convinced that it’s in the genes.
Me, as long as it works, I don’t care how.
Thanks again. I bet your wife and I have a lot in common.
I say to you, her sins,
which are many,
have been forgiven.
I offer my heart
of evil to Holy God
who accepts with joy.
abuse of power
Bill of Rights
church and state
Declaration of Independence
end of the age
find the kitty
Word for Wednesday