20 inch f8 Chief Ed Jones designed and a 17 f9 Zanbuto Wide Band Chief Mike Jones designed .Both unobstructed telescopes .
Quote:Where can a lens be gotten ? Field aberrations? Is that coma .
Quote:I have some saved already was not sure if the authors would be ok with me posting them .I like your idea I know You Dave And ED have alot .
Quote:some people obviously feel it's worth the effort.http://img405.imageshack.us/img405/5439/es14ethos2.jpg
-DannyMy warehouseMy Channel
Quote:Dose this Ross corrector variant works on newtonian?
Active instruments: 4.25" f/6 Newtonian on altazimuth Springfield mount with crutch tripod -- telescope for the handicapped. 12" f/6 Newtonian Telescope maker since 1958; always more to come? Well maybe just one more and it will be something very special Stellafane Awards: 1977 1st award for 4" f/6 refractor 1978 1st award for 4" f/4 Lurie Aplanat 1983 1st award for Newtonian smoking pipe For Sky and Telescope articles, please see Bio info.
Quote:...Speaking of tinkering on those cloudy nights, it would be interesting to do a direct theoretical comparison of this Mike I. Jones-Rosin corrected system as opposed to a 10-inch f/3.5 Newtonian with a Paracorr and a 10-inch f/3.5 Newotnian using a Wynne-type corrector (both of which are commercially available)....Mladen