October 8, 2009 at 2:17 pm #1712ElsinoreKeymaster
Rainbows, opalescence, and other visual effects of diffraction.
Theme suggestion kudos to orionid!October 21, 2009 at 11:48 pm #24851justkatParticipant
I’m assuming that the thing that creates the effect does not have to be in the picture, but, if desired, can be.October 21, 2009 at 11:57 pm #24852orionidParticipant
Correct.October 22, 2009 at 12:18 am #24853KestranaParticipant
I’m assuming this needs to be actual diffraction of light and not something rainbow colored? I guess it says so in the title but I’m seeking reinforcement.October 31, 2009 at 2:38 am #24854clouddancerParticipant
For all my idea was, I’m getting tiny little rainbows and I don’t know how to make them bigger or better. I have to go indirectly in order to cast the rainbow and it’s just not working out. Ideas ❓
Unfortunately, this is the best I’ve gotten so far:
http://i141.photobucket.com/albums/r69/clouddancer19/Farktography/110409%20RoyGBiv/100_4040.jpgOctober 31, 2009 at 3:45 am #24855U-ManParticipant
This past summer I went up To Mopsy’s place in the North woods. I love it there. I arrived in the evening and after seven or so hours in a car with four girls 11 and under I needed to escape. It had just rained and the sun was starting to go down. I knew, knew, knew I should take my camera in the boat with me when I went out to take a few casts. But I just wanted to go. Of course, the setting sun and the just passed rain set up for a wonderful rainbow. The farking thing was even reflected in the water.
While it is nice to have the mental picture, I’d like to have a digital copy too thankyouverymuch.October 31, 2009 at 3:57 am #24856U-ManParticipant
Diffraction. Just googled it. Varied subject. Would water-wave diffraction count? How about a laser through a prism. That wouldn’t give a rainbow, but the light is at least changed in direction. Or would that be refraction? Does it matter? Are we just looking for cool light-physics-pretty-geeky things or is it just Red Orange Yellow Green Blue Indigo Violet?October 31, 2009 at 2:42 pm #24857mopsyParticipant
By putting opalescence as part of the description of the theme, it broadens the possibilities. “Opalescence” phenomenon is named after the appearance of opals. It can be as simple as the play of colors from a surface like an oil slick or sun on a raindrop. Is this a direction we can take? Of course there is to be no sun this weekend in the UP, which makes it difficult!November 1, 2009 at 8:05 am #24858corsec67Participant
Just a reminder to those of us in countries that don’t do the DST thing:
The time this contest opens is the same in EST, but different in UTC/countries that have different or no daylight saving times.November 1, 2009 at 4:21 pm #24859lokisbongParticipant
Stupid daylight savings time usually messes me up for days.
I still have very little for this contest. gonna try again today for some cool looking stuff.November 1, 2009 at 5:41 pm #24860olavfParticipant
Same here – my folder is empty, but I’ve got a few ideas. Dunno how they’re going to turn out though. What’s going to be really fun is squeezing that in between making dinner and doing a shoot this evening with a friend that’s going to come over and model.November 1, 2009 at 11:07 pm #24861UpmqtguyParticipant
So let me get this correct…you actually only want opalescence or diffraction, not photographs of rainbow colored items?November 1, 2009 at 11:17 pm #24862thepostessParticipant
That is my understanding, yes.November 1, 2009 at 11:49 pm #24863ElsinoreKeymaster
I would suggest there’s an argument to be made that “rainbows,” would include rainbow colored items as long as it’s all the colors and not just red or blue or whatever alone.November 2, 2009 at 1:07 am #24864nobigdealParticipant
I would suggest there’s an argument to be made that “rainbows,” would include rainbow colored items as long as it’s all the colors and not just red or blue or whatever alone.
I would agree.
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