Have for sale fast newtonian mirror + secondary with great accuracy (1/13Lambda). Primary has 20" diameter and 1802mm focal lenght (F/3.53), secondary size is 120mm (with 97% Hilux coatings). I can deliver completed scope for 3500EUR (a couple of months waiting time, I provide invoice and warranty). Truss scope parts kit and focuser (GSO linear dual speed) is an option for 2750EUR. Email me if you have any questions at: pawel((dot))rojewski((at))astrofaktoria((dot))pl. Y axis on diagram is Lambda, X is surface. PayPal +3,9%
