#19505 Nov 11, 2003
since when did ap start making folded refractors? I saw this in
the > jim phillips section in the photo files. Does ap do custom scopes?
In the 1980's I was excited to read about the developement of
apochromatic refractors by a young Buck named Roalnd Christen. The
review I read in S&T of, I believe, a 5" model, was truly impressive.
At the time I was using an 8" Doublet made for me by Tom Dobbins. It
had an R.E. Brandt F/12 (13?)Lens. I called Mr. Christen had a long
talk and ordered a 6" F/12 Super Planetary scope in a Folded OTA. I
believe he had made the folded OTA as an experimental model. I Loved
it. The performance was superb. After that, I called and wrote Roland
asking if he would ever make a larger apo of, at least, 8" aperture.
Finally, one day I got a letter stating that he was going to make
four (4), 9" F/15 apochromatic triplet lens. He was going to sell
three and keep the fourth as a back-up. Was I interested? You are
going to probably laugh when you read that I thought it over for a
(short) while. I then told Roland I would like to buy the lens but
needed him to build a folded OTA for me similar to the 6" F/12 I
already had. He agreed and I ordered the lens (and OTA) in 1988. As
there were no 1200 mounts at that time I quickly contacted John
Styles at OGS and ordered a mount. The AP 9" F/15 Folded apo arrived
in 1991. The amount of work put into the lens ate up any profit I am
sure. I do not know if any of the other 9" lens were completed. Mine
has been mounted in an observatory 10 feet ouside my bedroom door for
12 years now.