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Hi Paul - I have tried a Bahtinov mask but I found that was not much better than my present techniques and a fairly bright star is required. Yes, the DSI2 Envisage software does have a facility whereby the focusing star is shown as a three dimensional "hill". I don't find this of much use and prefer to use the x5 screen magnification to focus on small dim stars. It is just that I am impressed by the Images Plus method of focusing with a Canon ED and hoped that maybe similar software would be available for application with the DSI2. I have found similar general use software but this is intended for controlling motor drive focusers.
Cheers Peter
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