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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Jan 25, 2009 10:06 pm Post subject: How many standard aspect ratios do we have for home theater? |
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Feel free to add to the list
1. 4:3 (1.33:1)
2. 1.78:1
3. 16:9
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jan 25, 2009 10:10 pm Post subject: |
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2.35:1
2.40:1
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Sun Jan 25, 2009 10:10 pm Post subject: |
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1.33:1
1.66:1
1.78:1
1.85:1
2.35:1
2.39:1
2.40:1
2.55:1
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Sun Jan 25, 2009 10:10 pm Post subject: |
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16:9 IS 1.78.
Add 2.40:1 (scope) to the list for HT, and that's all for "standard" HT AR's.
There are many more if you're talking about film.
SC
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jan 25, 2009 10:12 pm Post subject: |
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Wow we're so insync today we're positivly synergistic ( NEVER thought I would use THAT word here ) 
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WanMan
Joined: 19 Mar 2006
Posts: 10270
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| Posted: Sun Jan 25, 2009 10:18 pm Post subject: |
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I'm waiting for π:1
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Trust no one. Absolutely no one. Advice of the board.
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Jan 25, 2009 10:26 pm Post subject: |
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| WanMan wrote: | | I'm waiting for π:1 |
What's the forumula to solve for 'n'? 
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Clarence
Joined: 08 Mar 2006
Posts: 3827
Location: Smith Mtn Lake, VA
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| Posted: Sun Jan 25, 2009 10:38 pm Post subject: |
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http://www.imdb.com/Sections/DVDs/AspectRatios/
| Code: | Aspect Ratios Number of DVDs
1.33:1 11395
1.37:1 8
1.44:1 3
1.50:1 2
1.55:1 6
1.58:1 1
1.66:1 628
1.70:1 3
1.74:1 2
1.75:1 21
1.77:1 17
1.78:1 848
1.85:1 6408
1.88:1 1
1.90:1 1
2.00:1 25
2.10:1 3
2.13:1 1
2.2:1 2
2.20:1 53
2.21:1 5
2.25:1 3
2.30:1 4
2.31:1 1
2.35:1 2995
2.40:1 103
2.45:1 1
2.55:1 26
2.75:1 1 |
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Jan 25, 2009 11:27 pm Post subject: |
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Correct me if I'm wrong but are not all "widescreen" dvd's mastered in 1.78:1 with gray bars top and bottom for higher image ratios?
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Chip
A Barco is only a AmPro with training wheels
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Sun Jan 25, 2009 11:30 pm Post subject: |
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Yep, that's right, Chip. DVDs are either 4:3 or 16:9, while the content on them can be shorter vertically, with extra black lines as padding.
SC
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Jesse S
Joined: 12 May 2007
Posts: 209
Location: Etobicoke
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| Posted: Mon Jan 26, 2009 9:33 am Post subject: |
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People still watch dvd's?
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Mon Jan 26, 2009 12:04 pm Post subject: |
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| Jesse S wrote: | | People still watch dvd's? |
Blu-rays and HD-DVD's are mastered the same way.
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Mon Jan 26, 2009 10:59 pm Post subject: |
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| Jesse S wrote: | | People still watch dvd's? |
Yep.
And when Deep Throat comes out on Blu-ray, I'll sell my Teranex
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Chip
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Tue Jan 27, 2009 1:38 am Post subject: |
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There is no 2.40:1, it is really 2.39:1.
And 2.35:1 was only in use prior to the 70's sometime.
Oh, and DVD? Is that like an 8 track cassette or something?
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