HD-1's top row chroma loss at DVinfo.net

Betsy Moore · June 18th, 2004, 04:30 PM

The top row of our HD-1 camera seems to have lost its color, although since it's only one row it's hard to say. Has anyone else experienced this problem? I'm viewing the image on a standard def 32" Sony so could it be just be an artifact of the dividing line between the frame and the black bar? Also, there seems to be a little more overall frame showing at the top of the screen on the TV than on the cam's flip-out screen--has anyone noticed a slight cropping difference?

David Kennett · June 19th, 2004, 06:48 AM

Betsy,

You're right! The screen does not show all of the top. The bottom is a bit closer to reality. (on HD10). Haven't checked the sides closely. All the LCD camera screens I have seen seem to crop a bit.

Ken Hodson · June 19th, 2004, 09:39 AM

How does the top line show on your editing monitor?
Ken

Chris Gordon · June 21st, 2004, 08:17 PM

I just noticed the same problem when I view footage from my HD1 on my plasma tv. Bizarre!

Any thoughts on what causes this?? Or is it just a quirk of the camera?

Tom Roper · June 22nd, 2004, 01:54 PM

...we're talking about the cropping on the LCD or the loss of color in the top row, but...

On an NTSC monitor, i.e. std-def tv, the top row is the VBI, (vertical blanking interval), where closed captioning, screen format and other info can be encoded. A loss of color or image there is normal. You usually won't see it on a tv, because they build in a bit of overscan. With editing software, or when viewing the whole image on a PC, you will notice it.

June 18th, 2004, 04:30 PM	#1
Betsy Moore Major Player Join Date: Mar 2003 Location: Los Angeles Posts: 444	HD-1's top row chroma loss The top row of our HD-1 camera seems to have lost its color, although since it's only one row it's hard to say. Has anyone else experienced this problem? I'm viewing the image on a standard def 32" Sony so could it be just be an artifact of the dividing line between the frame and the black bar? Also, there seems to be a little more overall frame showing at the top of the screen on the TV than on the cam's flip-out screen--has anyone noticed a slight cropping difference?

June 19th, 2004, 06:48 AM	#2
David Kennett Major Player Join Date: Jul 2003 Location: North Ridgeville, Ohio Posts: 407	Betsy, You're right! The screen does not show all of the top. The bottom is a bit closer to reality. (on HD10). Haven't checked the sides closely. All the LCD camera screens I have seen seem to crop a bit. __________________ Dave

June 19th, 2004, 09:39 AM	#3
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	How does the top line show on your editing monitor? Ken __________________ Damnit Jim, I'm a film maker not a sysytems tech.

June 21st, 2004, 08:17 PM	#4
Chris Gordon Regular Crew Join Date: Feb 2004 Location: Hollywood, CA Posts: 44	Same problem I just noticed the same problem when I view footage from my HD1 on my plasma tv. Bizarre! Any thoughts on what causes this?? Or is it just a quirk of the camera?

June 22nd, 2004, 01:54 PM	#5
Tom Roper Trustee Join Date: Jun 2004 Location: Denver, Colorado Posts: 1,891	Not sure if... ...we're talking about the cropping on the LCD or the loss of color in the top row, but... On an NTSC monitor, i.e. std-def tv, the top row is the VBI, (vertical blanking interval), where closed captioning, screen format and other info can be encoded. A loss of color or image there is normal. You usually won't see it on a tv, because they build in a bit of overscan. With editing software, or when viewing the whole image on a PC, you will notice it.