By end of this month we start a ne limited project. TMB designed for me a 8"F/6 airspacest achromat, where we order now 5 samples using our cell design with very high quality very high transmission multicoatings. Since that fast achromats will have color and will be maybe difficult to estimate the quality by simple startest comparing to interf. Report results, we choosed as quality a Startestdocument.
For transporting and mounting we may choose carbonfiber as tubematerial, so it will be very very lightweight , less than 25 lbs ( we try to go under 20 lbs). A Aries Chromacorr and a combination of a Sirius MV20/Lighblue82A can be used to reduce the secondary spectrum.
As focusers we will offer several choices, from 2.7" carbomfiber focuser, over 2.5" alufocuser, over AP 2.7" focuser to Starlight Feather Touch Focusers 2" and 3.5"
the final price will depends mainly from the choosed focuser and its cost.
Later we introduce a 30 mm 103° Super-Ultrawide angle eyepiece, designed now by Dick Buchroder with a 3" Novabright Stardiagonal ( prices of both items not clear yet)
The 8"F/6 OTA price will be roughly about $ 5,000
if anybody is interested in one of this 5 samples, please get in contact with us