How do you take a photo of a TV screen...

[KeepsakeGirl]

without getting those bands to appear on the image?

[Detonate]

Get a HDTV? :)

[CaptainTom]

try a longer exposure....... hard to capture action that way, and you may always have raster lines.

[Jake]

I have a HDTV and I still get lines, What I do is pause the TV and use a longer exposure.
Here are 2 shots that have that I done that on.
Both were in HD but I dont think that mattered.
http://www.pbase.com/thejakestir/image/49977011
http://www.pbase.com/thejakestir/image/40782816

[KeepsakeGirl]

what exposures were those taken on jake?

[Patti Edens]

I remember reading about this years ago and it had to do with using the correct shutter speed.

Does this help?

http://hacks.oreilly.com/pub/h/1814

Patti

[KeepsakeGirl]

oh that helps Patti! thanks alot!

[AjP]

shutter speed 1/50- 1/60.. tv refresh rate
if you want cristal clear HDTV then

[Jake]

Originally Posted by KeepsakeGirl

what exposures were those taken on jake?

Shot #1 - 2sec f/11. iso100
Shot#2 - 1/3s f/2.8 iso50

But I think that link Patti gave was just wht you were looking for.

[Clint_Smith]

Originally Posted by AjP

shutter speed 1/50- 1/60.. tv refresh rate
if you want cristal clear HDTV then

^^^what he said... or get a camera that can vary the shutter speed in Hz....LOL

[Gordon]

Originally Posted by Clint_Smith

^^^what he said... or get a camera that can vary the shutter speed in Hz....LOL

Just to be totally geeky, most cameras already actually display Hz.
We just mentally convert it back to seconds by implying the 1/ part

Hertz = cycles/second

So 60 Hz means 1/60s per cycle

a 1/60s shutter speed is normally shown on a camera as 60
hence in Hz equivalent units ;)

The problem though with setting the shutter speed to the refresh rate of the TV is that you'll suffer tearing, as you wont sync the shutter action to the raster flyback timing. So you may end up with half of one frame and half of the following frame captured. This doesn't matter much
if you've paused the frame but will normally look odd.

[billbunton]

Also remember if it's not HD (or if it's one of the interlaced HD modes) you need to capture two whole frames...

[CaptainTom]

Originally Posted by GordonMcGregor

Just to be totally geeky, most cameras already actually display Hz.
We just mentally convert it back to seconds by implying the 1/ part

Hertz = cycles/second

So 60 Hz means 1/60s per cycle

a 1/60s shutter speed is normally shown on a camera as 60
hence in Hz equivalent units ;)

The problem though with setting the shutter speed to the refresh rate of the TV is that you'll suffer tearing, as you wont sync the shutter action to the raster flyback timing. So you may end up with half of one frame and half of the following frame captured. This doesn't matter much
if you've paused the frame but will normally look odd.

That is totally PHEEKY !!!!!

[zeroendless]

I used to be play a bit with home projector. HTPC, HD Transport stream file...etc on 106" screen and often took few screen shots posting on web for comparison. I don't get to watch them as much as i used too but still kept few tera bytes of TS file when i dump from comcast DVR to PC. Screen shot taken from Discovery HD is to die for....LOL

My job was to get the closer brightness and contrast as your seen on the screen. I use Tripod, MLU,freeze screen and shutter release..... and ....L-verted glass.

[Rick Waldroup]

Usually on older TVs a general rule of thumb was to shoot at a 30th of a second or slower to avoid what we used to call the scan lines. On newer television sets, I have no idea. I am a thousand years old in case you could not tell.