HD or SD? at DVinfo.net

Amir Chen · July 1st, 2007, 05:53 AM

Hi All.
If you are shooting a video and you know that it will end up on the web and not on a DVD are u using SD or HD?

Matthew Johnston · July 1st, 2007, 08:08 PM

Quote:

Originally Posted by Amir Chen

Hi All.
If you are shooting a video and you know that it will end up on the web and not on a DVD are u using SD or HD?

HD SHQ always, downres later.

Amir Chen · July 3rd, 2007, 12:31 AM

what about the frame ratio?
in HD it`s 16:9 and in SD it`s 4:3.
when i shoot in HD and want to upload to the web the frame ratio is still 16:9 even if i downrate the resolution.

Matthew Johnston · July 3rd, 2007, 01:28 PM

SD can be 16:9 as well. DVD's are no problem, the web is no problem you just choose what size you'd like, IE 640x360.

Joseph Hutson · July 3rd, 2007, 08:33 PM

You always want to shoot in HD on an HD Camera. You can always downconvert later.

You want to shoot in HD so can future-proof it.

Joseph

Timothy Takemoto · October 30th, 2007, 07:37 AM

I find that shooting in HD is better a lot clearer and want to keep doing so especially. I would recommend Xacti's HD to anyone who as enough memory on their SD(HC) card(s) and processor power /RAM in their computer. However,
> what about the frame ratio?
> in HD it`s 16:9 and in SD it`s 4:3.
> when i shoot in HD and want to upload to the web the frame ratio is still 16:9 even if i downrate the resolution.

This is a good question, and the people below do not seem to have responded to it (perhaps because they saw it as being too trivial).

I think that if we shoot in SD and want to keep the same aspect (frame) ratio then we have to use an event pan/crop tool such as available in Sony Vegas to crop the sides off the image.

I think that setting the height and width to 980 by 720, and the X and Y center 640 and 360 respectively in the event pan crop tool seems to make the HD image (kindly provided by Ken English on these forums
http://www.dvinfo.net/conf/showthread.php?t=90946
) fit the SD preview window in the bottom right.

Please see this screen shot.
http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping.jpg

Please would the experts not despair of us, and tell Amir Chen and I whether this is the right way to do it. I would really like to know the best way.
http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping.jpg

I see that I can save the crop by naming it and then pressing the little floppy disk mark. I have updated the image above to show folks how to do it.

Ah, I now see that there is a crop present prepared called "4:3 Standard TV aspect ratio" dur. It uses height and width to 960 by 720, and the X and Y center 640 and 360 respectively, but I find that my 980 works better and gets rid of the thin black lines at the end. This is the view when I use the preset provided in Sony Vegas, and with the problem, as I see it, circled in red
http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping2.jpg

Tim

July 1st, 2007, 05:53 AM	#1
Amir Chen New Boot Join Date: Jun 2007 Location: Rishon Lezion , Israel Posts: 9	HD or SD? Hi All. If you are shooting a video and you know that it will end up on the web and not on a DVD are u using SD or HD?

July 3rd, 2007, 01:28 PM	#4
Matthew Johnston Regular Crew Join Date: Mar 2006 Location: grand rapids michigan usa Posts: 54	SD can be 16:9 as well. DVD's are no problem, the web is no problem you just choose what size you'd like, IE 640x360. __________________ www.mattjohnstonrally.com

July 3rd, 2007, 08:33 PM	#5
Joseph Hutson Regular Crew Join Date: Jun 2007 Location: Claremore, Oklahoma Posts: 131	Always shoot HD You always want to shoot in HD on an HD Camera. You can always downconvert later. You want to shoot in HD so can future-proof it. Joseph

October 30th, 2007, 07:37 AM	#6
Timothy Takemoto Regular Crew Join Date: Aug 2006 Location: Yamaguchi, Japan Posts: 71	Changing Aspect Ratio from HD to SD I find that shooting in HD is better a lot clearer and want to keep doing so especially. I would recommend Xacti's HD to anyone who as enough memory on their SD(HC) card(s) and processor power /RAM in their computer. However, > what about the frame ratio? > in HD it`s 16:9 and in SD it`s 4:3. > when i shoot in HD and want to upload to the web the frame ratio is still 16:9 even if i downrate the resolution. This is a good question, and the people below do not seem to have responded to it (perhaps because they saw it as being too trivial). I think that if we shoot in SD and want to keep the same aspect (frame) ratio then we have to use an event pan/crop tool such as available in Sony Vegas to crop the sides off the image. I think that setting the height and width to 980 by 720, and the X and Y center 640 and 360 respectively in the event pan crop tool seems to make the HD image (kindly provided by Ken English on these forums http://www.dvinfo.net/conf/showthread.php?t=90946 ) fit the SD preview window in the bottom right. Please see this screen shot. http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping.jpg Please would the experts not despair of us, and tell Amir Chen and I whether this is the right way to do it. I would really like to know the best way. http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping.jpg I see that I can save the crop by naming it and then pressing the little floppy disk mark. I have updated the image above to show folks how to do it. Ah, I now see that there is a crop present prepared called "4:3 Standard TV aspect ratio" dur. It uses height and width to 960 by 720, and the X and Y center 640 and 360 respectively, but I find that my 980 works better and gets rid of the thin black lines at the end. This is the view when I use the preset provided in Sony Vegas, and with the problem, as I see it, circled in red http://yueigo.epc.yamaguchi-u.ac.jp/temp/cropping2.jpg Tim Last edited by Timothy Takemoto; October 30th, 2007 at 07:48 AM. Reason: because I realised there was already a preset crop in Vegas

July 3rd, 2007, 12:31 AM	#3
Amir Chen New Boot Join Date: Jun 2007 Location: Rishon Lezion , Israel Posts: 9	what about the frame ratio? in HD it`s 16:9 and in SD it`s 4:3. when i shoot in HD and want to upload to the web the frame ratio is still 16:9 even if i downrate the resolution.