Re: Video capture on EOS 650d only with 4 to 8 fps?

Alan Corey <[email protected]> Tue, 22 Dec 2020 08:03:21 -0500
Newsgroups gmane.comp.multimedia.gphoto.user
Message-ID <CAOh3dDZ1pEQvRYrFUaw2TPB5x5w3MRYkGF1egZte7UbX5YP9rA@mail.gmail.com>
I have a Nikon D5200, and from what I've read doing 1920x1080 video is
marginal, the camera sometimes overheats.  I've never tried it.  It's
a DSLR, it wasn't really meant to do video with.

On 12/22/20, Thomas Orgis <[email protected]> wrote:
> Am Mon, 21 Dec 2020 14:51:31 +0100
> schrieb Thomas Orgis <[email protected]>:
>
>> Indeed, that trick works with the 650D, too. Thanks. I get 89  frames
>> in 10 seconds and see the preview. But that is still far off the 250
>> frames that should at least be there.
>
> Another data point: I had the chance to test an EOS 1300D. That one
> gives (in Av mode) 182 frames in 10 s. This is still off the prescribed
> 25 fps in movie.jpeg, though. And it's 1056x704 pixels, btw.
>
> So the newer hardware works better, but since it is still not at the
> rate it should be, I rekindle my hope that gphoto2 could be optimized
> to deliver the true potential. I guess 18 fps live video with a modern
> model was good enough for most purposes, and so people stoppped
> optimizing the communication — although it is rather useless for recording
> movies as there is no proper timing. I do wonder how that communication
> looks, does gphoto2 have to ask for and confirm each frame, or should
> it just be a stream of data that is digested as fast as possible?
>
>
> Alrighty then,
>
> Thomas
>
>
>
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