Curious About Rainbows.
Oct 18, 2012 21:09:29 #
waterbug49307
Loc: All over, currently Big Rapids Michigan
I just bought PSE 10 and am trying really hard to understand it. I'm really not a book person, but I bought two books on it - just so I can figure out how to edit a photograph. Big learning curve for me. You seem to just flow right thru it.
Oct 18, 2012 21:56:45 #
littlebug
Loc: woburn ma
EstherP wrote:
I like to play... ;-)
Esther
R.G. wrote:
If my newly installed Google Chrome browser is working, I should be able to upload the pictures in question.
EDIT..... Success.
EDIT..... Success.
I like to play... ;-)
Esther
esther this is a very good shot I like the way you got the road in the middle great shot
Oct 18, 2012 22:20:14 #
EstherP wrote:
quote=waterbug49307 EstherP - You do amazing work... (show quote)
Ummm. For some reason my Elements 10 choked on doing it. I managed to manually paste them together but there were more issues. Oh well.
Oct 18, 2012 22:21:44 #
waterbug49307 wrote:
I just bought PSE 10 and am trying really hard to understand it. I'm really not a book person, but I bought two books on it - just so I can figure out how to edit a photograph. Big learning curve for me. You seem to just flow right thru it.
It is a big learning curve. There are many good reference books but they don't help you get stuff done.
I recommend Kelby and Kloskowski's book. It made me a happy camper in three days after three months of frustration.
Elements 11 is trying to spruce up the user interface. Hope it works.
Oct 24, 2012 14:09:47 #
Just a quick update to say I think I got the answer from the link provided by DaveMM.
If my calculations are correct, the maximum focal length that you could use to capture an entire rainbow in one shot is....
19.9 mm (35 mm equiv.).
If you wanted some clear space at either end of the rainbow, a shorter focal length would be required - say 15 to 16 mm.
So a lens that only went as low as 20 mm would not be quite wide enough (that rules out all the compacts that I know of).
If my calculations are correct, the maximum focal length that you could use to capture an entire rainbow in one shot is....
19.9 mm (35 mm equiv.).
If you wanted some clear space at either end of the rainbow, a shorter focal length would be required - say 15 to 16 mm.
So a lens that only went as low as 20 mm would not be quite wide enough (that rules out all the compacts that I know of).
Oct 24, 2012 14:15:25 #
PrairieSeasons wrote:
quote=DaveMM quote=R.G. I tried to snap a really... (show quote)
Isn't anyone else curious?!? What shape? I'll guess flat.
Oct 24, 2012 14:34:01 #
My guess would be circular, and if the plane cast a shadow, it would be exactly at the centre.
Oct 24, 2012 14:42:12 #
Quite true. It is always a circle, and if you happen to be close enough to a cloud or the ground to see the plane's shadow, it will be inside the circle.
In fact, when that happens (seeing both the plane's shadow and the rainbow), old time pilots would call that a "glory". That term was very common among WWII pilot friends of mine, but that group is diminishing fast.
In fact, when that happens (seeing both the plane's shadow and the rainbow), old time pilots would call that a "glory". That term was very common among WWII pilot friends of mine, but that group is diminishing fast.
Oct 24, 2012 14:49:52 #
Quote:
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
Is this a trick question? The rainbow would not be seen from above.
Oct 24, 2012 15:05:09 #
[quote=haroldross]
The circle would appear in the rainclouds in front of you (and slightly below you) with the sun directly behind you.
Quote:
Is this a trick question?
Is this a trick question?
The circle would appear in the rainclouds in front of you (and slightly below you) with the sun directly behind you.
Oct 24, 2012 17:08:12 #
It's not a trick question, and the rainbows can be seen from a plane. If you google "airplane rainbow" you will see some examples. The examples (at least on the first page) are all taken from large aircraft and through scratchy plexiglass windows so are of marginal quality. The most dramatic ones I've seen have been from a Cessna 182 probably at 6,000 to 8,000 feet AGL.
Oct 24, 2012 17:13:22 #
lighthouse
Loc: No Fixed Abode
PrairieSeasons wrote:
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
I'm guessing that might depend on if the airplane was sitting on the tarmac or in the air.
:lol:
Oct 24, 2012 17:22:35 #
lighthouse wrote:
I'm guessing that might depend on if the airplane was sitting on the tarmac or in the air.
:lol:
PrairieSeasons wrote:
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
TRIVIA QUESTION: And this one will be easy for small plane pilots - if you see a rainbow from a small airplane, what shape will it be?
I'm guessing that might depend on if the airplane was sitting on the tarmac or in the air.
:lol:
On the tarmac it looks the same as it would from inside your Chevy. And if your Chevy were 6,000 feet in the air, the rainbow would look like a circle but you would have other potential problems.
Oct 24, 2012 17:29:17 #
PrairieSeasons wrote:
And if your Chevy were 6,000 feet in the air, the rainbow would look like a circle but you would have other potential problems.
And if your Chevy were 6,000 feet in the air, the rainbow would look like a circle but you would have other potential problems.
Especially if you were seeing a long dark tunnel with a light at the end...
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