Paul Tervit wrote:
> Has anyone looked at, experimented with, considered, or dismissed the
> idea of connecting their camera/KIWI-OSD to an Archos portable
> recoding unit?
The issue was raised a couple of years ago on the IOTA forum - but I
don't think anything became of it.
At first glance it seems a perfect combination of technology Paul.
However I have reservations over the video compression used (MPEG4) in
the Archos device. While the MPEG system nicely exploits "holes" in
our sensory system (our brain is fooled) I'm not sure it is a good
system to record the timing of a faint star blinking out. How much
does the MPEG algorithm affect the played back star blink, as apposed
to a recording on a normal VCR or DV system?.
Like the audio MPEG system, how data is treated depends on the masking
effect of adjacent data - so subtle changes are often masked by the
MPEG algorithm, such that our eyes and ears don't detect the
technology. But when it comes to analysing a MPEG video of a star
blink field by field - we can't separate any algorithm delay from what
So I would suggest caution Paul, it would take a lot of testing to
find out the "temporal shift" caused by the MPEG algorithm at
different light (star) levels.
BTW, congratulations on loading a new configuration onto your Garmin
GPS, to make your new KIWI OSD work as it should - welcome to the
millisecond club ;-)
Regards, Geoff (Christchurch, NZ).