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What;s 'Flash Band'?

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Alan Lacey
What;s 'Flash Band'?
on Dec 5, 2010 at 12:09:26 pm

Started using XDcam browser in ernest and wondered what the 'flash band' tag is for each clip.

Could someone enlighten me please?

Alan (uk)

FlashXDR,XDcamHD,XDcamEX,D9 etc
FCS,AE,Combustion,LiquidSilver,Vegas,Edius,
G5,MBP,Vista64,XP


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Ronnie Martin
Re: What;s 'Flash Band'?
on Dec 5, 2010 at 6:13:44 pm

It is the band you get from a flash still camera or a strobe going off during your shoot when using a cmose camera rather than a ccd camera.
Sent via my iPhone with much difficulty.

Ronnie

Ronnie Martin
Kato Video Productions
http://www.dirtracingvideo.com
http://www.ramtv.tv


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Don Greening
Re: What;s 'Flash Band'?
on Dec 5, 2010 at 8:17:52 pm

And it's because a CCD sensor gets scanned all at once whereas a CMOS sensor is scanned from bottom to top over time, or progressively. Sometimes a camera flash will be split between 2 frames, hence the 'banding' terminology.

As an aside, I actually prefer the banding over the complete frame blowout because you can at least see some of the frame. I've never had a single person complain about flash banding, which leads me to believe that the shooters/editors get more freaked out about the issue than the end user does.

- Don

Don Greening
Reeltime Videoworks
http://www.reeltimevideoworks.com


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Chris Babbitt
Re: What;s 'Flash Band'?
on Dec 6, 2010 at 4:12:46 pm

I totally agree. Actually, whether it's banded or full-frame makes do difference to me. They're both just as annoying.



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Alan Lacey
Re: What;s 'Flash Band'?
on Dec 7, 2010 at 8:34:26 am

thanks Guys I understand all now. Strobe is not a problem for my work but nice to know what it is

Alan

FlashXDR,XDcamHD,XDcamEX,D9 etc
FCS,AE,Combustion,LiquidSilver,Vegas,Edius,
G5,MBP,Vista64,XP


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Dean Longfield
Re: What;s 'Flash Band'?
on Dec 23, 2010 at 2:51:53 am

When there's a lot of flashes going off at once, it can get quite annoying, aesthetically.
Probably because our eyes are used to the way CCD's capture flashes. However, the good thing
about Sony XDCAM EX, is the Flash Band Compensator works very well. The clips end up looking like flashes caught on a CCD. I only wish Flash Band Compensation was done automatically, in the camera's circuitry, like the Panasonic DVX 300 apparently does. That said, at least XDCAM EX has a fix with the Flash Band Compensator, where many other cams with CMOS chips do not.


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