NikonGear'23

Images => Nature, Flora, Fauna & Landscapes => Topic started by: Akira on July 31, 2016, 12:11:34

Title: Double rainbow
Post by: Akira on July 31, 2016, 12:11:34
Trimmed from 12-stitch pano.  D750, AF-S 50/1.8G
Title: Re: Double rainbow
Post by: elsa hoffmann on July 31, 2016, 13:33:50
Impressive scene and clouds ! (and rainbow)
Title: Re: Double rainbow
Post by: Akira on July 31, 2016, 14:11:16
Thanks, Elsa!  The view was spectacular.
Title: Re: Double rainbow
Post by: Mike G on July 31, 2016, 14:15:07
Why "double" rainbow?

Super shot.
Title: Re: Double rainbow
Post by: Akira on July 31, 2016, 14:29:42
Why "double" rainbow?

Super shot.

Thanks, Mike!  There is a very faint second rainbow to the left of the main one rising from around the pylon.
Title: Re: Double rainbow
Post by: armando_m on July 31, 2016, 14:37:47
Beautiful view Akira
Title: Re: Double rainbow
Post by: Mike G on July 31, 2016, 15:08:50
Akira, you obviously have better eyesight than I.  :'(
Title: Re: Double rainbow
Post by: Akira on July 31, 2016, 15:33:52
Armando, thanks!

Mike, the reason I can see the second rainbow could be that I do know there is one.  Here you would see the second one, but I don't think the image itself is very interesting.
Title: Re: Double rainbow
Post by: Mike G on July 31, 2016, 16:18:41
Akira, now I see it  ;D
Title: Re: Double rainbow
Post by: Akira on July 31, 2016, 21:04:29
Akira, now I see it  ;D

Glad to know that, Mike!
Title: Re: Double rainbow
Post by: Tristin on August 01, 2016, 08:00:42
Lovely capture!  Though, if you don't mind some cc, I feel like some cropping would realy help it out for web viewing.  The double rainbow is all but lost in such a beautiful and expansive sky.  On a large print, the entire pano would be gorgeous.
Title: Re: Double rainbow
Post by: golunvolo on August 01, 2016, 17:06:38
Beautiful scenery with great impact.
  Your decision of framing creates effects for me, being able to admire the contrast between the bucolic sky full of cotton and color and the crowded man-made bottom. After some walking through the details...lurking in the shadows is some menace to the sky above, to nature. Maybe me own reaction to this cities we has created as species.

  Love the shot. Also think it will be an excellent print.

  Thanks Akira!
Title: Re: Double rainbow
Post by: Jakov Minić on August 01, 2016, 17:15:37
Mr Cloud strikes again!
I truly enjoy your stitched images, Akira!
The double rainbow is a bonus to an already beautiful picture :)
Title: Re: Double rainbow
Post by: Les Olson on August 01, 2016, 17:49:33
Akira, you obviously have better eyesight than I.  :'(

All rainbows are double.  The primary rainbow is at 42 degrees from the anti-solar point, and the outer or secondary rainbow is at 51 degrees.  The secondary rainbow is always broader and less bright than the primary rainbow, so it is often hard to see.  Note that the colours are reversed - in the inner rainbow red is on the outside and on the outer rainbow it is on the inside. 

There are also third and fourth order rainbows, but they are seen in the other direction, towards the sun, and are centred on the sun so they are hard to see and harder to photograph - the first photograph of a third order rainbow was made only in 2011! 

Two other phenomenon Akira's picture illustrates is that the the sky within the primary rainbow is brighter than the rest of the sky, and that the sky between the primary and secondary rainbows is darker than the rest of the sky (this is called "Alexander's dark band"). 
Title: Re: Double rainbow
Post by: Akira on August 02, 2016, 02:04:18
Tristin, thanks for your input.  Actually I tried narrower panos using less frames to zoom in the rainbow but discarded all of them simply because they are much less spectacular than the full-range pano posted above.  I concluded that the posted one rather enhances the sense of the scale of the rainbow, even on the web.

Paco, glad you like it!  I would fully agree with your notion of the contrast between the bucolic and the artificial.

Jakov, thanks for dropping by and kind comment!

Les, thanks very much for the scientific description of the rainbow.  I've never known about neither the third and fourth order rainbows.  I think one would need a 360 degree camera like Ricoh Theta to capture all!  I've never known about the differentce of the brightness of the skies separated by the rainbow(s) or the Alexander's dark band either.  All are valuable facts to learn!
Title: Re: Double rainbow
Post by: David Paterson on August 02, 2016, 10:10:51
Wonderful sky contrasting beautifully with the dark foreground.

(Akira - your images always make me homesick for Tokyo and Japan.)
Title: Re: Double rainbow
Post by: John Geerts on August 02, 2016, 10:26:38
Impressive overview, Akira.
Title: Re: Double rainbow
Post by: stenrasmussen on August 02, 2016, 10:47:34
Great cityscape. I like how the power line towers make my eyes pan back and forth.
Title: Re: Double rainbow
Post by: Akira on August 02, 2016, 14:37:23
Dave, John and Sten, thanks for kind comments!

Dave, I'm not sure if I could be glad to make you homesick.  But I would take that as compliment.

John, glad you like it.

Sten, I always try to utilize pylons as accents in my panos, as they are not removable.  :D
Title: Re: Double rainbow
Post by: Lowell on August 03, 2016, 16:14:02
All rainbows are double.  The primary rainbow is at 42 degrees from the anti-solar point, and the outer or secondary rainbow is at 51 degrees.  The secondary rainbow is always broader and less bright than the primary rainbow, so it is often hard to see.  Note that the colours are reversed - in the inner rainbow red is on the outside and on the outer rainbow it is on the inside. 

There are also third and fourth order rainbows, but they are seen in the other direction, towards the sun, and are centred on the sun so they are hard to see and harder to photograph - the first photograph of a third order rainbow was made only in 2011! 

Two other phenomenon Akira's picture illustrates is that the the sky within the primary rainbow is brighter than the rest of the sky, and that the sky between the primary and secondary rainbows is darker than the rest of the sky (this is called "Alexander's dark band"). 


Thanks Les for the explanation.  I took this shot with my phone in May of this year.   I had never noticed Alexanders band nor that the colors of the primary and secondary rainbows are reversed.  I call it "the pot of gold is at the mouth of the canyon". 

Lowell
Title: Re: Double rainbow
Post by: elsa hoffmann on August 03, 2016, 20:02:48
Thanks Les - very interesting information which will make me look at rainbows differently in future!
Title: Re: Double rainbow
Post by: Akira on August 04, 2016, 02:43:31
Lowell, thanks for posting an illustrative image.  The difference between inside and outside the main rainbow is very obvious, although the Alexander's dark band may not be all that darker than the outside of the second rainbow.
Title: Re: Double rainbow
Post by: Lowell on August 04, 2016, 20:47:21
Lowell, thanks for posting an illustrative image.  The difference between inside and outside the main rainbow is very obvious, although the Alexander's dark band may not be all that darker than the outside of the second rainbow.
Akira,   I had never noticed that the area to the to the left ( in this shot) is darker nor that there is a Alexander's band.   Once I new the name of the band, google and Wikipedia come into play.  Wikipedia mentions that the relative darkness of the band is controlled by the background lighting.  In the examples shown the their, the relative "darkness" of the band is more or less pronounced by the specifics of the lighting.  All really fascinating and what a resource in the internet.

Lowell
Title: Re: Double rainbow
Post by: Akira on August 04, 2016, 20:58:29
Lowell, when one is going to make an important decision, the info on the Wiki should be double-checked using other sources.  That said, it is true that Wiki offers chances to learn something new!