Hi,
I've just found out about something called a chromacor. I was told that it brings an achromat very close to an apo. Is this true? It is expensive but being that I can't afford an apo, I was wondering,"If I buy Orions 120mm svp (f8.3)or 120mm st(f5) now, for about $500, and then save until I can afford the chromacor, would I then have almost the equivalent to a 5 inch apo for about a 1/5 of the price or is there some obvious difference?
Thanx
I've just found out about something called a chromacor. I was told that it brings an achromat very close to an apo. Is this true? It is expensive but being that I can't afford an apo, I was wondering,"If I buy Orions 120mm svp (f8.3)or 120mm st(f5) now, for about $500, and then save until I can afford the chromacor, would I then have almost the equivalent to a 5 inch apo for about a 1/5 of the price or is there some obvious difference?
Thanx
