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« The Bulldog Resides in Greensboro | Main | IHOP; He Bikes; We all Go for Pancakes »

Friday, January 28, 2011

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Preston Earle

Another terrific picture!

From a photography standpoint, the "reflectance of coal" factoid is interesting. There was a discussion of photographing the moon on The Online Photographer blog here: http://theonlinephotographer.typepad.com/the_online_photographer/2010/12/the-solstice-eclipse.html

I commented on the post: "A tip for lunar exposures from The Nikon School (circa 1975): 'It's always high noon on the moon', so the Sunny Sixteen Rule applies: f/16 and 1/ISO second exposure for a properly exposed lunar surface."

Ctein, one of the blog writers, corrected me: "First off, the moon is about half a stop darker than the ISO exposure aim point (13% equivalent reflectance), so that would make it the "Sunny 13" rule. But that would give you a moon rendered as middle grey, which would look most unnatural to most people.

"Furthermore, the surface reflectance varies considerably with phase. During the full moon, there's a coherent backscatter that boosts the brightness by nearly a stop, but that disappears only a few days either side of full. The brightness then drops off rapidly with phase, not only due to the incident angle of the sunlight becoming shallower, but the increasing predominance of shadowing on the surface.

"IOW, it's a rule of thumb that starts off leaving photos mildly underexposed under the best of conditions, and it produces serious underexposure most of the time."

David Dyer-Bennet, another commenter, came to my defense: "Well, "sunny 16" is a rule of thumb, not a law of nature. Coming close enough to nail it on the next try is good enough for digital :-) .

"The fact that we've been systematically depicting the moon as much lighter-colored than it really is is just one of those things, I guess. It's too late to change now (especially when other subjects are also in the frame)."

I think that last paragraph is particularly interesting.

Janis

Wow! Not only is that a beautiful shot of the full moon on the rise but I just learned quite a bit about taking photos of it next time !
We have all had some amazing sky views this week .
Wish I had time to see more but I am off to the Grand National Roadster Show for the Pinstripers reunion today and back again tomorrow.
Have a wonderful weekend!

genie

What a gorgeous night to be out photographing that beautiful moon. The light from it along with the lights in the houses is almost mesmerizing.I found myself peering closer and closer to see what else I could find.

Jacob

Hi Jan! Thank you very much for your kind comment on Florida Fotos! It's always good to hear that one's work is appreciated...

And I appreciate this post very much. Splendid capture of the moon...it has a certain aura of mystery about it; would make a good cover for a mystery novel, or perhaps a Halloween movie!

Hope you have a wonderful weekend!

Sara Chapman in Seattle, USA

This is not only a beautiful scene, but very well captured, and it's quite difficult to do. You are so lucky to have such a clear night. Here all is cloudy, cloudy, cloudy.

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