Bahtinov Grabber

[1CM69]

Hi,

I am having a play around with Bahtinov Grabber & need a little info on some of the options.

Firstly there's a checkbox for 'Rotating Focuser', I assume this is used if either the end of the tube where the mask is mounted or the imaging device is rotated in order to achieve focus, yes or no?

Also there is a section 'RGB Channels Used', is this used if you happen to be using R, G or B filters?

Thanks

Kirk