usher-yeah

[oliverst14@hotmail.com]

i saw the sash post and thought id put this one of usher up

http://www.youtube.com/watch?v=NiXbRBS5Z58

anyone know what laser was used?

im guessing an argon from the colour but not sure

cheers ollie

iv just had a look again at the video and im not sure if they have just used a 532nm green with diffraction gratings and coloured it afterwards with video editing

let me know what you think?

[buffo]

im not sure if they have just used a 532nm green with diffraction gratings and coloured it afterwards with video editing

That's a good point that I hadn't considered before. But yeah, if you look, you'll see that no one in the crowd is wearing green. Thus, it would be easy to substitute blue (or any other color) for the green laser beams in post production. That would also keep the price of the video shoot down, since otherwise they'd need some high-power argons (or stupidly expensive DPSS rigs) to get such a bright, piercing blue. But a few 3 watt yags and some fog, coupled with a little chroma-keying, would be relatively cheap.

You may be onto something...

Adam

[oliverst14@hotmail.com]

i dont know why i thought that. its probably cause it goes green half way through and the whole image colour changes.

when the laser is blue the whole shot looks very blue but when the laser is green it all looks normal without any real colour to the background other than natural colours.

it would make it alot cheaper and probably fairly easy to do for proffesional video editers

iv got my money on them doing this. wish it could be done in real life would save us all alot of money

cheers ollie

[White-Light]

iv just had a look again at the video and im not sure if they have just used a 532nm green with diffraction gratings and coloured it afterwards with video editing

let me know what you think?

I'm sure they cheated.

Look at 49 secs in when the lasers near the ceiling, there's a lot of green tint - reflection from the ceiling maybe that was too diffuse to colourise properly?

[oliverst14@hotmail.com]

i also noticed that. it sometimes looks white too.
iv always loved the laser in this video (hate the song) but now i think they cheated it takes some of the wow away from it

oh well shows what they can do with technology these days.

at the moment iv been looking at videos of people using photo shop on you tube. alot are called photoshop extreme makeover and some are amazing. it doesnt look anything like the person when they have finished.

cheers ollie

[Pangolin]

A Pangolin client did this gig. I think it was Talking Laser out in the LA area. They used a green Yag and the whole thing was re-colored in post-production.

Bill

[buffo]

Cool Bill! Thanks for the info...

Adam

[-bart-]

A simple green, blue-channel swap.

http://www.photonlexicon.com/forums/...2&d=1202580832

[allthatwhichis]

A simple green, blue-channel swap.

http://www.photonlexicon.com/forums/...2&d=1202580832

Eewww... Kinda nasty when looked at from that perspective.

[oliverst14@hotmail.com]

great bill thanks for letting us know. thought it was a bit suspect

cheers ollie