[Regulus (Trevor)]

Thanks for the responses. Always something new to think about.

Brian that's an encouraging comment
The 127 will be very good , as today's achro's are all very good , with the coating technology and computer designed and polished lenses.

I have a 150mm Skywatcher f/5 here in OZ
Regards this I have been steering clear of the wider apertures to get away from CA and had already thought that a 5" or 6" f8~9 achromat would probably lose a fair bit of CA if i dropped the aperture down with a mask, so I was pleased by your other comment too.
If its to bad for some people I use the 100mm hole in the lens cap to turn it into a 100mm f/7.5 and the CA almost disappears
and
But CA does not worry me to much
Yeah I think my friend and I can live with a little bit too given our budget and the quality of modern scopes.
My chromocored f/8 is still in NZ
This is what is interesting me at the moment. If one of these does what it is advertised to do then it is very attractive. Wondering whether an adapter and Camera can be attached tho.

Thanks again.
So many things to learn and so much info. Fun eh??? :-)

Trev