VX2100 vs. DVC100 16:9 widescreen at DVinfo.net

Georg Liigand · December 14th, 2005, 05:34 AM

Hello,

I'm just wondering if the VX2100 and Panasonic DVX100 produce 16:9 the same way and is the final widescreen footage of similar quality and sharpness?

EDIT: Sorry for the wrong camera type in title.

Boyd Ostroff · December 14th, 2005, 02:37 PM

Both cameras produce 16:9 by cropping the image, so theoretically they lose 25% vertical resolution in the process. However the comparision isn't quite that simple. The VX-2100, and all interlaced cameras, do some averaging of alternate scan lines. Imagine a thin horizontal line that's only one pixel wide. It could appear in the odd field but not the even field which would cause a flickering effect. By blending the fields it helps reduce this.

However if you set the DVX-100 to progressive mode there's no blending since all 480 lines are captured at the same time. This should produce better 16:9, but it would still be limited to 360 vertical lines out of a possible 480.

But neither camera has a high enough resolution CCD to provide all 480 lines in 16:9 mode.

Georg Liigand · December 14th, 2005, 05:04 PM

Thanks for this answer, Boyd! Strange though that a cheaper camera like Panasonic GS400 does real 16:9 while more expensive cameras don't.

December 14th, 2005, 05:34 AM	#1
Georg Liigand Major Player Join Date: Feb 2005 Location: Estonia Posts: 214	VX2100 vs. DVC100 16:9 widescreen Hello, I'm just wondering if the VX2100 and Panasonic DVX100 produce 16:9 the same way and is the final widescreen footage of similar quality and sharpness? EDIT: Sorry for the wrong camera type in title.

December 14th, 2005, 02:37 PM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	Both cameras produce 16:9 by cropping the image, so theoretically they lose 25% vertical resolution in the process. However the comparision isn't quite that simple. The VX-2100, and all interlaced cameras, do some averaging of alternate scan lines. Imagine a thin horizontal line that's only one pixel wide. It could appear in the odd field but not the even field which would cause a flickering effect. By blending the fields it helps reduce this. However if you set the DVX-100 to progressive mode there's no blending since all 480 lines are captured at the same time. This should produce better 16:9, but it would still be limited to 360 vertical lines out of a possible 480. But neither camera has a high enough resolution CCD to provide all 480 lines in 16:9 mode.

December 14th, 2005, 05:04 PM	#3
Georg Liigand Major Player Join Date: Feb 2005 Location: Estonia Posts: 214	Thanks for this answer, Boyd! Strange though that a cheaper camera like Panasonic GS400 does real 16:9 while more expensive cameras don't.