Re: VGA–USB adapter, Ubuntu 12.04?

Johnny Rosenberg gurus.knugum at gmail.com
Sat Feb 23 16:56:32 UTC 2013


2013/2/23 Colin Law <clanlaw at googlemail.com>:
> On 23 February 2013 16:30, Johnny Rosenberg <gurus.knugum at gmail.com> wrote:
>> ...
>> I found more things now. One of them is the Epiphan VGA2USB:
>> http://www.epiphan.com/products/frame-grabbers/vga2usb/
>>
>> They had a Pro version for $2000, but that's just a LITTLE too much for me… :P
>> The cheapest version is around $300. All versions are compatible with
>> V4L and there is even a tutorial for how to set it up in Linux.
>>
>> Here's a comparison table:
>> http://www.epiphan.com/products/frame-grabbers/
>>
>> It says, among other things, that the frame rate at 640×480 is 29 fps.
>> My source has a settable ”refresh rate”: 60, 66, 70 and 75 Hz.
>> Could this be a problem?
>> I know that refresh rate and frame rate is not the same thing, but
>> still… do I need to worry about that?
>> My main purpose is to capture still images anyway, but if recording
>> video, the target frame rate will be 25 fps.
>
> That seems like a lot of money to me.  I am afraid I don't know the
> answer to the frame rate question, you could probably ask the
> supplier.
>
> Have you thought of just using a webcam?  You get a really good one
> for much less than $300.  You could make a bracket or something so
> that it is correctly located.
>
> Colin

Well, in that case I could as well continue using the same digital
camera that I used all the time so far…

Fortunately the USD is quite weak these days (and the SEK is quite
strong) so $300 is not as much in SEK as it was a couple of years ago,
at least…
But you are right, $300 is still a bit expensive.



Johnny Rosenberg




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