<joke>So, you reject 'pan and scan', but you're ok with 'stretch and crop'</joke>
Actually, I appreciate the effort you've made to make this a real-world experiment, and I look forward to your future installments.
CinemaScope(TM) HDHT - Part I - The Concept
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Rodolfo
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- Joined: Wed Sep 01, 2004 8:46 pm
- Location: Lansdowne VA
Clever point cj,
No joke.
The difference between Pan Scan and Stretch and Crop is that, even when both sever part of an image, I can control the system stretch function and choose the format to view in my equipment.
Additionaly in many HDTVs the strech and crop has the ability to shift the image (scroll), with Pan Scan the image you view is IT, is was the choice of the telecine operator (sometimes saccompanied by the director of the movie) following the action to decide what you will see, and not see.
In other words, PanScan is decided for you, not by you.
I am glad you like the effort, enjoy the reading, and hopefuly do a similar project yourself one day.
Best Regards,
Rodolfo La Maestra
No joke.
The difference between Pan Scan and Stretch and Crop is that, even when both sever part of an image, I can control the system stretch function and choose the format to view in my equipment.
Additionaly in many HDTVs the strech and crop has the ability to shift the image (scroll), with Pan Scan the image you view is IT, is was the choice of the telecine operator (sometimes saccompanied by the director of the movie) following the action to decide what you will see, and not see.
In other words, PanScan is decided for you, not by you.
I am glad you like the effort, enjoy the reading, and hopefuly do a similar project yourself one day.
Best Regards,
Rodolfo La Maestra
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hdtvjim
- Member
- Posts: 20
- Joined: Tue Sep 14, 2004 9:14 pm
Rodolfo,
I didn't mean that the legacy 1.33:1 (4x3) would disappear I meant that the 1.33:1 used by the analog transmitters would disappear. I agree with you DTV can and will transmit the 4x3 for a long time to come.
The best use of a screen for all the different aspect ratios from the 1.33:1 up to the 2.35:1 is a screen or picture tube with a 1.78:1 (16x9) aspect ratio. All aspect ratios except the 1.78 will either be letterboxed or pillared. But you do get the largest image or least unused area of the 16x9 screen.
I didn't mean that the legacy 1.33:1 (4x3) would disappear I meant that the 1.33:1 used by the analog transmitters would disappear. I agree with you DTV can and will transmit the 4x3 for a long time to come.
The best use of a screen for all the different aspect ratios from the 1.33:1 up to the 2.35:1 is a screen or picture tube with a 1.78:1 (16x9) aspect ratio. All aspect ratios except the 1.78 will either be letterboxed or pillared. But you do get the largest image or least unused area of the 16x9 screen.
Rodolfo wrote:hdtvjim,
Regarding your comment:
"The 4x3 is expected to dissapear on February 17, 2009 when all analog transmitters are to be turned off. "
What makes you think that the DTV deadline would make 4:3 disappear?
Please review the DTV formats on the Glossary:
http://www.hdtvmagazine.com/glossary.php
HDTV is the only format that is "16:9 only" but the DTV mandate is not for HDTV, is for DTV in general, of which HDTV is only the higher resolution formats, and is not even mandated.
480i and 480p formats of the mandated DTV could be 16:9 and 4:3.
In addition, ther will be tons of legacy 4:3 content that will continue to be delivered as 4:3 for years to come.
Best Regards,
Rodolfo La Maestra
Last edited by hdtvjim on Fri Apr 04, 2008 2:12 am, edited 1 time in total.
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Rodolfo
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- Joined: Wed Sep 01, 2004 8:46 pm
- Location: Lansdowne VA
There is no best overall solution for all viewers without considering what the viewer mostly watches on such screen.
Your comment is applicable to mostly 16:9 viewers because they will get the most screen area on such programming.
With such approach everyone should get a larger 4:3 image and get the best area because most content is and will be for years 4:3, legacy or not, regardless if you watch it or not.
The article is about CinemScope 2.35:1 viewing (pre-recorded content or broadcast 2.35:1 content), as the primary purpose of a Home Theater using an HD projector, not to watch TV, any non-2.35:1 format TV.
A person that has that primary 2.35:1 objective and implement your approach of a 16:9 screen would use less area of that screen, less projector resolution, and see more bars when viewing 2.35:1 content.
Regarding "the 1.33:1 used by the analog transmitters would disappear", your statement is still not clear with "the 1.33:1", 4:3 DTV is a format that is being in use and will continue even when analog transmitters go away, and regarless of legacy content being 4:3. This is about shooting and transmitting totally new content in 4:3 for DTV transmission.
Best Regards,
Rodolfo La Maestra
Your comment is applicable to mostly 16:9 viewers because they will get the most screen area on such programming.
With such approach everyone should get a larger 4:3 image and get the best area because most content is and will be for years 4:3, legacy or not, regardless if you watch it or not.
The article is about CinemScope 2.35:1 viewing (pre-recorded content or broadcast 2.35:1 content), as the primary purpose of a Home Theater using an HD projector, not to watch TV, any non-2.35:1 format TV.
A person that has that primary 2.35:1 objective and implement your approach of a 16:9 screen would use less area of that screen, less projector resolution, and see more bars when viewing 2.35:1 content.
Regarding "the 1.33:1 used by the analog transmitters would disappear", your statement is still not clear with "the 1.33:1", 4:3 DTV is a format that is being in use and will continue even when analog transmitters go away, and regarless of legacy content being 4:3. This is about shooting and transmitting totally new content in 4:3 for DTV transmission.
Best Regards,
Rodolfo La Maestra
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vstone
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- Joined: Mon Nov 28, 2005 1:38 pm
IRT 4:3 use, the "i" network (nee:PAX) stations broadcast 4 channels (one pair are an east coast/west coast feed) within their digital signal. Many small stations buy used equipment and have a crappy picture to begin with. New 4:3 programming will only start disppearing when it becomes hard to find the equipment.
We have no OTA stations within 40 miles, but have two cheap cable stations. Neither has either a reason or the money to go widescreen and would have to pay the cable company big bucks to go HD.
We have no OTA stations within 40 miles, but have two cheap cable stations. Neither has either a reason or the money to go widescreen and would have to pay the cable company big bucks to go HD.