Quote:
Originally Posted by Paul Haese
This is where you will find yourself wondering which way to go.
Do you want to image galaxies and planetary nebula or just nebula?
Each requires different focal lengths.
Added to this, you will want a flat field which is coma free(well not initially but after a couple of months you will), so you need to figure a coma corrector and flattener into the purchase of a newtonian if you go this way. Or you could simply buy a telescope that has this already figures.
The budget certainly limits what you can buy. Either go for refractor (spend a bit more) or something you can correct later.
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i have a Baader MPCC, so thats coma covered.
