Strange CP results, see image

Joined
Nov 24, 2007
Messages
949
Location
NJ, USA
I recently took a plane trip and was taking pictures out the window. I started out with my circular polarizer on the lens but took it off as I was getting some very strange effects shooting out the plane window and was wondering what causes this:

9019184833_71fe4d5393_b_d.jpg
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Joined
Jun 13, 2011
Messages
1,386
Location
Norwell,MA
Northern Lights? Looks like it's an interraction between the CP and the window plastic - kinda funky, I like it. As for the technical reason for it happening I don't know but it surely is something to do with the way light passes through the plastic plane windows.
 
Joined
Jul 16, 2009
Messages
10,094
Location
Newcastle
You see rainbow patterns when you view plastic items between crossed polarisers - there's something about the arrangement of the linear molecules within the plastic that affects the polarisation of light. Users of wide angle lenses & polarisers will be aware of the band of polarisation that appears in the sky; it looks like that, the plastic window and your filter are adding up to cause a similar effect...
 
Joined
Jan 26, 2005
Messages
15,253
Location
Marysville, WA
Oh, c'mon, enough of this technical discussion of cross-polarized-light-wave-linear-molecules-particles-plastic-physics-stuff. Just call it "magical" and enjoy the view :biggrin::biggrin:

Funny how CP's can catch you at times. I was photographing skiers and snow-boarders a number of years ago and had a CP on my 70-200. Whne I looked through the viewfinder I was shocked, half the image was black :eek: Then I realized I was wearing my sunglasses, polarized of course.

How readily apparent was this in your VF? It would be interesting to see how changing the direction of the CP would change the rainbow effect.
 
Joined
Jun 15, 2008
Messages
4,069
Location
Bellingham, WA
Oh, c'mon, enough of this technical discussion of cross-polarized-light-wave-linear-molecules-particles-plastic-physics-stuff. Just call it "magical" and enjoy the view :biggrin::biggrin:

I agree with Bill. I think it's cool!!

Carole :)
 
Joined
Aug 19, 2008
Messages
644
Location
Rockville, MD
My polarizing sunglasses produce this same effect through a lot of different glass/plexiglass/plastics. The tinted windows in my car REALLY adds to the effect.
 

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