Thanks, Mark.
Chuck Norcutt
Mark Marr-Lyon wrote:
> The internal reflection inside the raindrop happens near Brewster's angle,
> which makes the reflected light polarized. The polarization angle changes
> around the rainbow, so the polarizer won't make all of the rainbow disappear
> at once.
> See
> http://www.polarization.com/rainbow/rainbow.html
> http://en.wikipedia.org/wiki/Brewster's_angle
>
> Mark
>
> On Sat, May 30, 2009 at 7:14 AM, Chuck Norcutt <
> chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>
>> Can somebody explain this rainbow effect? AFAIK, rainbows are seen at
>> 180 degrees from the sun. Polarization is at maximum 90 degrees from
>> the sun and at minimum 180 degrees from the sun. It would seem to me
>> that a polarizer should have little or no effect on a rainbow. Have I
>> got it wrong? How?
>>
>> Chuck Norcutt
>>
>> Wayne Harridge wrote:
>>> I didn't know a polariser removed rainbows. It will probably enhance the
>>> rainbow if you rotate it 90 degrees.
>>>
>>> ...Wayne
>>>
>>> Wayne Harridge
>>> http://lrh.structuregraphs.com/
>>>
>>>
>>>> -----Original Message-----
>>>> From: Mike Lazzari []
>>>> Sent: Saturday, 30 May 2009 1:51 AM
>>>> To: 1
>>>> Subject: Re: [OM] Desks, film and jpgs
>>>>
>>>> A white balance disk would be useful for mixed lighting indoors and of
>>>> course removing that annoying color cast of sunrise and sunset. Add it
>>>> to your bag with the polarizer which is useful for removing rainbows :-
>>>> )
>>>>
>>>> Mike
>>>> --
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>>
>>
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