| Author |
Message |
 | Dan W | | Registered: May 9, 2002 |
| Registered: March 13, 2007 | | Posts: 980 |
| | Posted: | | | | Folks, please be careful when submitting aspect ratios. This is a minor thing but all-too-often folks are confusing 1.78 and 1.85.
If you have your gear properly set up, and have a 16x9 screen, it is pretty easy to see if you look closely.
A 1.78 image will completely fill your screen whereas the 1.85 will not.
A 1.85 image will have very thin slivers of black along the top and bottom of your screen. | | | | Dan |
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 | Corne | | Registered: Nov. 1, 2000 |
| Registered: April 5, 2007 |  Posts: 1,059 |
| | Posted: | | | | Not completely true. Due to the overscan feature of many widescreen television sets a 1.85:1 image will be without thin black bars also. The best way to decide whether an image is 1.78:1 or 1.85:1 is by pc/laptop and measure it (make sure that all scan correction functions of your playback software are put off). | | | | Cor | | | | Last edited: by Corne |
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| Dan W | | Registered: May 9, 2002 |
| Registered: March 13, 2007 | | Posts: 980 |
| | Posted: | | | | It seems you want to argue the definition of "properly set up". In that case I will qualify my earlier statement.
If your gear is properly calibrated, you have a 16x9 screen and you do not have the overscan properties set in such a manner that the difference is not visible, it is pretty easy to see if you look closely.
Edit: no measuring is needed to tell these apart if your overscan is turned off and your gear is properly calibrated. | | | | Dan | | | | Last edited: by Dan W |
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| Corne | | Registered: Nov. 1, 2000 |
| Registered: April 5, 2007 | | Posts: 1,059 |
| | Posted: | | | | Quoting Dan W: Quote:
It seems you want to argue the definition of "properly set up". In that case I will qualify my earlier statement.
If your gear is properly calibrated, you have a 16x9 screen and you do not have the overscan properties set in such a manner that the difference is not visible, it is pretty easy to see if you look closely.
Edit: no measuring is needed to tell these apart if your overscan is turned off and your gear is properly calibrated. No, I don't want to argue the definition of "properly set up". I just added an attribution to your well explained statement. Not everyone knows how to properly set up the television set and there are many television sets without the option to turn off the overscan. In all of those cases it is better to check it on your laptop/pc. | | | | Cor |
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| Registered: July 31, 2008 | Reputation:  |  Posts: 2,506 |
| | Posted: | | | | Quoting Corne: Quote:
Quoting Dan W:
Quote:
It seems you want to argue the definition of "properly set up". In that case I will qualify my earlier statement.
If your gear is properly calibrated, you have a 16x9 screen and you do not have the overscan properties set in such a manner that the difference is not visible, it is pretty easy to see if you look closely.
Edit: no measuring is needed to tell these apart if your overscan is turned off and your gear is properly calibrated.
No, I don't want to argue the definition of "properly set up". I just added an attribution to your well explained statement. Not everyone knows how to properly set up the television set and there are many television sets without the option to turn off the overscan. In all of those cases it is better to check it on your laptop/pc. I've got to agree with this. Even eyesight can cause the black bar on a 1.85:1 title to not show to a specific person. I would always take a "checked on PC" over a "visually identified on TV". |
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| Dan W | | Registered: May 9, 2002 |
| Registered: March 13, 2007 | | Posts: 980 |
| | Posted: | | | | Point taken on the TV limitations.
To get back on topic...... Please be careful when contributing the video formats. Too often they are incorrect in the contributions, especially 1.78 vs 1.85. If you are not certain with the gear you are using, please refrain from changing this field. | | | | Dan | | | | Last edited: by Dan W |
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| Registered: December 10, 2007 | | Reputation: | | Posts: 3,004 |
| | Posted: | | | | The vast majority of widescreen set are flat panels, meanign there shoudl be 0 overscan. A tube or RPTV could easily overscan, though. |
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| Corne | | Registered: Nov. 1, 2000 |
| Registered: April 5, 2007 | | Posts: 1,059 |
| | Posted: | | | | Quoting Ace_of_Sevens: Quote:
The vast majority of widescreen set are flat panels, meanign there shoudl be 0 overscan. A tube or RPTV could easily overscan, though. I have two flat LCD TV screens and both screens have overscan... | | | | Cor |
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| Registered: March 14, 2007 |  Posts: 2,337 |
| | Posted: | | | | Quoting Corne: Quote:
Quoting Ace_of_Sevens:
Quote:
The vast majority of widescreen set are flat panels, meanign there shoudl be 0 overscan. A tube or RPTV could easily overscan, though.
I have two flat LCD TV screens and both screens have overscan... It's usually adjustable. Why don't you just adjust overscan to 0? |
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| Corne | | Registered: Nov. 1, 2000 |
| Registered: April 5, 2007 | | Posts: 1,059 |
| | Posted: | | | | Quoting Kulju: Quote:
Quoting Corne:
Quote:
Quoting Ace_of_Sevens:
Quote:
The vast majority of widescreen set are flat panels, meanign there shoudl be 0 overscan. A tube or RPTV could easily overscan, though.
I have two flat LCD TV screens and both screens have overscan...
It's usually adjustable. Why don't you just adjust overscan to 0? I meant that it isn't a solely tube/RPTV thing. A flat screen isn't by definition overscan free. | | | | Cor | | | | Last edited: by Corne |
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| Registered: May 26, 2007 | Reputation:  |  Posts: 2,879 |
| | Posted: | | | | What the heck is overscan?
(I'm sure my square TV has none of it)
I am thinking of purchasing a widescreen TV in the near future (this year or next, to me that's the near future) but I have absolutely no idea what anyone is talking about when they talk about them, and am therefore rather intimidated at the idea of setting it up.
I mean, my lovely square TV, which is the nicest TV I've ever owned, was easy to set up. Plug it into the wall, plug the red/yellow/white cord in from the DVD player and the other one in from the P3 and everything is good to go. | | | If more of us valued food and cheer and song above hoarded gold, it would be a merrier world.
-- Thorin Oakenshield |
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| Registered: March 13, 2007 | | Reputation: | | Posts: 3,321 |
| | Posted: | | | | Quoting Danae Cassandra: Quote:
What the heck is overscan? It's when part of the image is displayed outside the normal viewing area of your TV. It's picture you can't see around the edges. | | | Get the CSVExport and Database Query plug-ins here.
Create fake parent profiles to organize your collection. |
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| Registered: December 10, 2007 | | Reputation: | | Posts: 3,004 |
| | Posted: | | | | And a CRT is almost guaranteed to have at least 5%. |
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| Registered: March 14, 2007 | | Posts: 2,337 |
| | Posted: | | | | Quoting Danae Cassandra: Quote:
What the heck is overscan?
(I'm sure my square TV has none of it) I'm on the otherhand sure that you are wrong  |
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| Registered: March 13, 2007 | | Reputation: | | Posts: 2,293 |
| | Posted: | | | | Quoting Ace_of_Sevens: Quote:
The vast majority of widescreen set are flat panels, meanign there shoudl be 0 overscan. Almost every flat screen, by default, comes with a factory setting adding some overscan and the menu option for changing this is named different things by different manufacturers (even different models sometimes) and is often buried in sub-menus. Examples: Samsung call it Just Scan, Sony call it Full Pixel and Toshiba call it Exact Scan (and even when you set it it resets to overscanning every time the aspect ratio changes!) Actually, changing to 0 overscan is usually one of the best picture enhancements you can make, especially for LCDs so you get 1:1 pixel mapping to an HD image but the majority don't even know that it's set in the first place. FWIW for 1.78 and 1.85 they are close enough (especially with the overscan issue) that I tend to follow the "Use the Video specified on the DVD Cover unless you can verify there is a discrepancy between that and the actual Video included on the disc" guidance in the Rules. | | | | It is dangerous to be right in matters where established men are wrong |
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| Registered: March 19, 2007 | Reputation:  | | Posts: 6,018 |
| | Posted: | | | | Quoting Kulju: Quote:
Quoting Danae Cassandra:
Quote:
What the heck is overscan?
(I'm sure my square TV has none of it)
I'm on the otherhand sure that you are wrong So am I. Overscan means that some percentage (5% will be a common average) of the image is being cut off on the edges of the screen. All older CRT TV's have this, and it is the default setting of many flatscreens as well. Getting rid of overscan means you'll be getting an exact reproduction on a pixel by pixel basis on your screen of the signal. This can only be done if the signal matches the native resolution of your screen or is being upscaled to match that native resolution. And Dan W is quite right that 1.85:1 and 1.78:1 tend to be confused. And I wouldn't trust the DVD cover to come up with the right figure. | | | | Last edited: by dee1959jay |
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