|
|
Posted by Steve on 12/26/06 20:03
OK I give up. Until today the only video cameras I ever heard of that use
more than 640 (or 720) x 480 pixels are called HD cameras. Now I hear that
a cheap mpeg 4 camera makes use of more pixels than any HD camera to create
it's image. Alrighty then.
OK I am not giving up yet.
Here is the spec page to that higher-end Mustek I referred to. there is
NOTHING in the specifications tab that suggests that the camera EVER uses
more than 640x480 to capture, scale, or otherwise create VIDEO.
http://www.mustek.com/ProductDetail.aspx?product=DV%209300
And it's capacity chart...
http://www.mustek.com/productkiosk.aspx?model=DV%209300&show=cap_chart
WHY would anyone not use the whole sensor (to capture video)? BECAUSE IT
CAN'T DO IT. Capturing thirty 2048x1536 (or whatever) images every second
and converting them to 640x480 every second with that gadget is just
dreaming. DO NOT TRY to convince me otherwise without company documention.
"Jan Panteltje" <pNaonStpealmtje@yahoo.com> wrote in message
news:emrt04$cm6$1@aioe.org...
> On a sunny day (Tue, 26 Dec 2006 14:12:31 -0500) it happened "Steve"
> <no@mail.sorry> wrote in <yuekh.2$O67.0@newsfe12.lga>:
>
>>Are you talking about capturing stills in a high resolution then scaling
>>to
>>640x480 to use in a video? I hope not; that was not the original topic
>>here.
> No video VIDEO V I D E O
>
>>One more time,
>>
>>when you shoot VIDEO with your camera, it uses a 640x480 area of the
>>sensor.
>>The camera does NOT use the whole sensor for VIDEO. The digital zoom uses
>>part of the 640x480 area, not the whole sensor, for VIDEO, and expands it
>>to
>>640x480 for your shot.
>
> Not in this case of the Mustek.
> They would be daft to do it that way, but they are real clever :-)
> WHY would anyone not use the whole sensor? that makes no sense whatsover.
> You get much better results rescaling 2048xsomething to 640x480 even
> if just for bayer pattern averaging.
> Also you get better light sensitivity, and better optical details.
>
>>Please prove me wrong. Send a link to the manual that states otherwise.
> No need to prove anything, reality is.
>
>>Here is a test.
>>- take a VIDEO of a subject, fairly close up with the lens fully wide.
>>- walk far away from the subject, and use the digital zoom to compose it
>>in
>>the same way, then shoot another VIDEO.
>>Are the two shots of equal quality? I think you will find they are not.
>
> Of course not, 265 x something rescaled to 640x480 never gives more then
> 256 x something detail.
> That was not the issue.
>
Navigation:
[Reply to this message]
|