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Originally Posted by allan gould
JohnH
I would contact JohnG about LPI and Guidedog/K3CCDTools or Guidemaster. To be honest he has done far more than I in this area. Done extensive testing and he has all parameters down very well.
I use a modded webcam and all works well for me, Guidemaster measured my DEC backlash at 200 ms but other than that I just let it guide my 70x500mm scope with 2x barlow.
I think you can set the maximum time of exposure in the options setting for the camera. Will have to check this. Yes its as shown in the attached thumbnail
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Yup, I found that setting and put it to 30s, it did not make any difference. The camera settings page lets you set auto or otherwise, again it seems to make no difference. The exposure time screen slider on the main scree cannot be moved with any of these permutations or combinations with preview either on or off?