Quote:
Originally Posted by william123
So, you think your CFF may be better optically than was your AP? If so, that is great news to me, because I have a CFF on order. :-)
Thank you.
Bill
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Bill, I had one of the first "new ED type" 130 F8 delivered in late 1991.
At the time it was way ahead of anything on the market (no TOAs back then). My initial impressions are that this CFF is the optical equal of that scope - perhaps better. Manufacturing processes have improved in those 25 years, so some improvement should be expected. I have a fairly extensive observing log from those early AP years, it will be interesting to compare notes, the main problem is my eyes are not as good as they were back then, though this may be balanced by slightly better observing techniques.
What does impress me now is how good the AP 130 GTX is with a focal ratio of 6.3. That is where the big improvements have been made over the years, and I think at F6.9 the CFF will be slightly better than the GTX for visual work - which is what I do.