[OT] Why do so few people understand aspect ratios?
David J Patrick
djp-tnsZcVQxgqO2dHQpreyxbg at public.gmane.org
Thu May 27 15:42:34 UTC 2010
On 10-05-26 09:42 PM, Thomas Milne wrote:
> On Wed, May 26, 2010 at 8:50 PM, David Christopher Chipman
> <dchipman-rYHPKw+MWrk at public.gmane.org> wrote:
>> Thomas Milne wrote:
>> It's not the end user's fault, really. It has to do with the fact that the
>> aspect ratios for some video content is not that same as broadcast TV, which
>> "most" monitors are designed for. That's why the black bars are there. Other
>> wise they have to pan-and-scan the source image, to look at "important"
>> things. OK?
>>
>
> No, because I'm not asking about video content that has non-standard
> aspects. I'm asking about people who take video content that _is_ in a
> standard 16:9 aspect, and pad it so that it is 4:3. There is _never_ a
> good reason to do this, yet people persist.
Ahhhh so wrong :)
You may be correct that there is endless confusion regarding aspect
ratios, but you assertion that there is NEVER a good reason to do this,
puts you in the camp of the confused. If the original format differs
from the display format, you have only a few choices; "letterbox" the
image so that you see the whole picture (hence black bars) or the film
can be subjected to "pan and scan" (where the image is shifted left and
right to keep the important parts of the action visible, loose the
non-overlapping image areas entirely, or go buy a monitor that matches
the original aspect ratio (only available in 16:9, not 1:185 cinemascope
or any of the myriad cinema formats)
Letterboxing is a necessary evil, and you can blame the history of
filmmaking and the lack of standardization.
djp
>
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