Playing with circular polarizers

I got an unexpected result here. It seems the polarizer does rotate the polarity, or, the nulling comes from a differential of two polarities. After nulling with the second polarizer, on the camera, adding another in front interferes with the nulling.. Cool. I normally take one of the filters out and turn it inside out. Then, both together, I can use it like a shutter for all light. But now, I don't know!?

Category:

Science & Technology

Tags:

• canon
• hf21
• circular
• polarizer
• polarizing
• light

[girlie786]

thats amazing!!! Where can i buy a polarizer?? I soo want it!!!

[HarryHydro]

@girlie786 Lots of camera stores have them, but I bought these from eBay.

[Kylork]

did u polarize the TV screen?

[HarryHydro]

The TV screen has a polarizing filter which I think is linear.  Both on the camera are circular, but one I was turning inside out.

[orsolli]

He has a polarizer on the camera lence also.

[nelsonricardo81]

The light have 2 plan (like XY Axis), but polarizers have just 1 plan, let pass 1 plan of light. If rotate polarizers 45º (diagonal with XY of light, is stay black/not let light pass). That can explain how work 3d TV and 3d Glasses (polarizers).

The another experience is with minerals and Cristals, to see the optical axis of cristal, in microscope polarized. (Sorry by my english is not better)

[HarryHydro]

@metamaterial There's a polarizer on the camera also.

[metamaterial]

@justsaymusic You mean the part where you can see the background faintly? That's due to the handheld camera tilting. I suppose it depends what's being faked. If it's the effect of the crossed polarizers, then not in this case.

[ONIProductionsLtd]

@justsaymusic Nope, go read up on how polarizers work and it'll make sense as to how it happens

[justsaymusic]

0:56 => fake

[iamnotthatsmart]

@grendle1500 yet cool