Filming a video with a strobe light

[korki696]

ok im filming a music video with a sony HVR-A1U and im using strobe lights. when i try to film and the strobes are on all its doing is like what happens when you film a computer screen ometimes and theres bars going up on it. is there a way to fix this?

thanks

-Korki-

[miguelcerca]

ok im filming a music video with a sony HVR-A1U and im using strobe lights. when i try to film and the strobes are on all its doing is like what happens when you film a computer screen ometimes and theres bars going up on it. is there a way to fix this?

thanks

-Korki-

 

 

it's called interlaced video

when you view it on a television those lines will not appear, or if you are only viewing on a computer you can use a deinterlace filter

or if that's not the problem, could you post a clip of the video?

[A Nonny Moose]

My bet is on the "It's made to take video for TV" camp also, especially after seeing some of the product specs online.

[liquidplasmaflow]

If your strobe light has an interval setting, try setting it to 15Hz, 30Hz, or 60Hz.

[sMaX]

the easiest way is to just ad flash frames in your editing prog. + a lil slowmo 'n blur

 

Other than that you 'd have to make sure the frequency of the strobe isn't a plural of 50 or 60 Hz depending on your videostandard. pal-ntsc-

 

eg, if your strobe flashes and the shutter of your camera is closed at the time you 'll never notice the flash

If for instance your strobe flashes 3 times per frame (1/25th or 1/30th of a sec) it 'll just give 1 'big' flash, since the camera is too slow.

catch my drift?

 

the bars you see running (like on a crt screen) is the net frequency you see 'interacting' with the camera 's freq, being 25 frames a sec and the 50Hz or 60Hz voltage you get from your electricity supplier.

 

If you can adjust your shutter speed manually, you can test this out. At a certain point your shutter speed will be in sync with the flickering of your screen and 'll be almost stable.