Polarised light sources?
Posted 25 July 2011 - 04:07 AM
It's an odd question I know. I've noticed that my computer display is heavily polarised, as is my phone and iPod, but is there anything usable for cinematography?
Posted 25 July 2011 - 12:05 PM
there are polarizing filters, which take out the glare/reflections and deepen blue in the sky, but what are you trying to do with the lighting ???
Posted 26 July 2011 - 04:33 PM
By polarizing at the source, I suppose you could control the specular kicks of some sources differently than others. Other than that, why would you want a polarized source?
Posted 27 July 2011 - 07:55 AM
My query came out of a discussion elsewhere about the issues surrounding the selective filtering of polarised light in 3D mirror rigs leading to retinal rivalry in the two cameras. One solution gaining ground is the use of a 1/4 wave retarder over the whole front of the box, but it made me wonder if there were any other less obvious solutions. I'd been taken by surprise a while back to discover that flat screen displays are heavily polarised, so I wondered if there might be light sources that were polarised too that I was unaware of.
Had that been the case I'm not sure how it might have been used practically, but it would have been an interesting line of enquiry.
Worth asking anyhows I thought. Always keen to learn.
I like the huge polarising sheet of plastic! Bit expensive though.