Re: [libdc] Long Duration Exposure

[Ulf-Erik W. <ulf...@hh...>]

Hi,

> This is why I'm looking into libdc1394's API, but so far I don't see
> anything which screams "here's how you make a long duration exposure."
> Everything seems oriented toward video rates.  I've looked at the FAQ
> and the examples.  I've googled until I can't think of anything else
> to google.

You are right - at the first look the setup of a camera is orientated to
get a specific video rate. But with all cameras I have used (mainly from
one company) the shutter "overrides" this frame rate - e.g. you can
configure 30fps and set the shutter to 50s, causing a framerate of
0.02fps.

This caused some support cases here - our cameras use a default
shutter of 1/25s, but lots of models can be configured to 30fps or
60fps, and some of customers wonder where the missing frames are
hidden... 

             Schoene Gruesse,
			 Ulf.