"Chotechai" wrote in message
om...
Hi,

I have 70-300mm telephoto to which my TouCam Pro can mount for prime
focus. I intend to use this setup for Venus transit video recording.
However, recording such long hours into my harddisk is out of question
due to huge disk space requirement.

Is it possible to stream the USB output from my ToUcam pro to my
minidv camcorder, without quality loss? The minidv tape is just US$5
for 90 minutes recording.

From the recorded minidv tape, I can then select a few series of
frames for making a decent animation on my PC.

I also intend to use this arrangement for important eclipses.

Or any other suggestions are welcome.


Hi Chote,

You will find it difficult to match the 640x480 resolution that the Toucam
will give, with a video camera

I am planning to do something similar using a Toucam. If you use K3CCDtools
software you can automatically take a series of short avi at set intervals
(eg 10sec at 5 fps every 5 min) This will use much less room and you will
not have to worry about it crashing after 4 hours! Do not capture faster
than 5fps as this will lead to compression artefacts

If you then stack each avi to reduce the noise , you can make up a time
lapse recording out of the nice clean images. (You should use an IR filter
to make sure you do not get problems with chromatic abberations)


I used a Vesta Pro during the Mercury transit and it worked out quite well
(Venus will be much bigger!)

http://www.leadbeaterhome.fsnet.co.u...o_image_40.htm

Robin
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Robin Leadbeater
N54.75 W3.24
www.leadbeaterhome.fsnet.co.uk/astro.htm
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