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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: Some of my best mirrors werefigured in the summer and now I know why, the pitch was alittle harder and didn't flow as well.
20 inch f8 Chief Ed Jones designed and a 17 f9 Zanbuto Wide Band Chief Mike Jones designed .Both unobstructed telescopes .
Celestron 14" EDGE HD .7x Focal Reducer HyperStar Lens Assembly(C14) Astro-Physics 1100GTO AT72ED Guide Scope Orion Starshoot Autoguider ATIK 383L+C OSC ASI120MM LRGB Filter Set Images Plus 5.0 Photoshop CS5 Gradient Exterminator Noise Ninja IDAS LPS Filter uVenus filter AutoStakkert2 PixInsight 1.8
Quote:Quote: Some of my best mirrors werefigured in the summer and now I know why, the pitch was alittle harder and didn't flow as well. That doesn't sound quite right...Best,Mark
Quote: .Hard pitch tempered with motor oil will stay the same hardness for a long time .
Quote: Hardly no smell.