[gb44 (Glenn)]

Thanks, Ryan and Alex This pic is quite colour full for just a few seconds.

I had a Bahtinov mask for my 18inch and used it for my 16inch too.
Just not sure if I should persist with the FWHM measurement various programs give me versus the ease of use of the Bahtinov

I'm hoping to give M83 a try with this setup tonight. Guiding too.
Such a small FOV though...

Thanks for looking.
GlennB