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Old February 9th 06, 01:59 PM posted to uk.sci.astronomy
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Default Another K3CCDTools Question - Autoguiding


"adm" wrote in message
news

"Robin Leadbeater" wrote in message
...

"adm" wrote in message
...
I also just noticed that the new K3CCDTools version has a Drift

Explorer
and
Autoguide feature.....

Am I missing something here or does this potentially give the ability

to
autoguide my LX200GPS with the Toucam Pro or DSI Pro and no additional
equipment - i.e. Guidescope and separate camera ? Just connect the

laptop
via the serial port to the scope, set up K3CCDTools and hit the "guide"
button (probably not that simple, but....)


Hi,

Drift Explorer and Autoguide have been features of K3CCDTools for a

while
now. You still need a separate camera for imaging. You can either use an
off
axis guider on your main scope or a separate guidescope for your guide
camera. BTW do you know there is a Yahoo support group?
http://groups.yahoo.com/group/K3CCDTools/
There is also a lot of knowledge about K3CCDTools on the QCUIAG group


Cheers Robin - will check it out. However - it's a bit on the "new

features"
page that caught my interest. It says:

"Possibility to Autoguide during WDM sequence capturing by using the same
camera for capturing and autoguiding".....


Ah yes - I see (I have not upgraded yet) I think it means that you can
store the frames used for autoguiding, so with planetary imaging with short
exposures, you can stop the planet drifting out of the field of view. To be
honest, I thought you could do this already. Perhaps it worked with VfW but
not WDM. I already sometimes use long exposures for guiding and save them.
(It does not do any guiding during the long exposure frame, it just keeps
the object on the same pixels - useful for keeping any slow drift when doing
photometry for example.)
AFAIK the only ways of guiding during long exposures using one camera is to
se the Steve Chambers SC2 webcam mod which allows alternate lines to be read
more often while the other lines are accumulated for a long exposure, though
I have never met anyone who actually does this (Some Starlight Xpress
cameras have a similar feature) or use a camera like some of the SBig models
which have an extra guide chip built in. It would be worth asking for
clarification on the group though.

Robin