Luminous Landscape Forum

Equipment & Techniques => Landscape & Nature Photography => Topic started by: churly on July 02, 2015, 08:51:45 pm

Title: Rainbow's End
Post by: churly on July 02, 2015, 08:51:45 pm

Just a fun shot.  The pot of gold is always just over the next ridge.

Not so interested in critique on this one (although welcome) but I am wondering why the tonal change on the different sides of the bow.  This was shot with a polarizer so there may be a clue there.
Chuck

Title: Re: Rainbow's End
Post by: Kevin Raber on July 02, 2015, 08:59:04 pm

Had the same thing with a rainbow I did last week. Shot with a polarizer too.  I think it is showing more of the rainfall on one side vs. the other.

Kevin Raber

Title: Re: Rainbow's End
Post by: stamper on July 03, 2015, 05:28:00 am

Quote from: churly on July 02, 2015, 08:51:45 pm

Just a fun shot.  The pot of gold is always just over the next ridge.

Not so interested in critique on this one (although welcome) but I am wondering why the tonal change on the different sides of the bow.  This was shot with a polarizer so there may be a clue there.
Chuck

Did you use a wide angle lens?

https://luminous-landscape.com/polarizers/

Title: Re: Rainbow's End
Post by: spidermike on July 03, 2015, 06:55:24 am

Quote from: churly on July 02, 2015, 08:51:45 pm

I am wondering why the tonal change on the different sides of the bow.  This was shot with a polarizer so there may be a clue there.
Chuck

Nothing to do with polarisers. It is all about light bouncing around inside the raindrops and the amount of that light that emerges and eventually reaches our eye. The narrow angle at which this occurs makes it seem there is more light coming from inside the rainbow.

http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/ligsky.html
 

Title: Re: Rainbow's End
Post by: churly on July 03, 2015, 05:43:32 pm

Quote from: spidermike on July 03, 2015, 06:55:24 am

Nothing to do with polarisers. It is all about light bouncing around inside the raindrops and the amount of that light that emerges and eventually reaches our eye. The narrow angle at which this occurs makes it seem there is more light coming from inside the rainbow.

http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/ligsky.html
 

Thanks sm.  Seems that the scattered light does the job.

Title: Re: Rainbow's End
Post by: Rajan Parrikar on July 03, 2015, 09:03:00 pm

Quote from: churly on July 02, 2015, 08:51:45 pm

Not so interested in critique on this one (although welcome) but I am wondering why the tonal change on the different sides of the bow.
Chuck

Chuck,

That is very nicely explained here -

http://youtu.be/6Hl7BLXq5vA

Title: Re: Rainbow's End
Post by: churly on July 04, 2015, 07:18:09 am

Thanks for the link Rajan, 
This is a nice complete explanation and even discusses the polarization of the rainbow.

Title: Re: Rainbow's End
Post by: stamper on July 04, 2015, 07:46:14 am

The "problem" is easily fixed in post processing so in reality it isn't a "problem"?