ATM Nut.6" F15 Jaegers Refractor on Homebuilt EQ mount12.5" Homebuilt NewtProjects:16" F7.2 Reflector
20 inch f8 Chief Ed Jones designed and a 17 f9 Zanbuto Wide Band Chief Mike Jones designed .Both unobstructed telescopes .
7x35 and 10x50 sears tower binocs, 3" f/10 edmunds reflector, 2.4" f/11.7 manon refractor, 6" f/8 jaegers refractor, 10" f/11 R30 Istar refractor, 3" f/15.8 sans&streiffe refractor, 3.1" f/15 selsi refractor(towa 339), 2.4" f/15 sears refractor, selsi 30x30mm spyglass, criterion 5-draw 25x45x75x spyglass(1957), 4.25" f/14.8 tasco 20te.http://cleardarksky.com/c/OmahaNEkey.html
Ed Jones ........... The best data is an interferogram, the best analysis is from an honest optician.
Quote:I take it that the wet news papers worked very well with the support of the cement !
Quote:OK, with that data, here's your finished lens prescription and EFL. I added the longitudinal color curves to show you how I corrected the color. I picked 0.5461um (green) and 0.588um (yellow) to span the peak photopic eye response, and minimized spherical aberration at those two wavelengths. I chose to intersect the 0.656um (red) and 0.486um (blue) colors at the 90% zone to minimize the visual blur circle. The coma is essentially zero. That's about as good as it can get with these two particular glass types. Can't wait to hear about the imagery!Mike