Filip Δημοσιεύτηκε Μάρτιος 22, 2016 Δημοσιεύτηκε Μάρτιος 22, 2016 For Sale 20" Newton F4,5 Mirror set without or with the Tube together.20" parabolic Mirror and secondary flat is hand made by David Hinds in the UK in 1997. The mirror is 1/8 PV and is made from Pyrex and weighs 16kg and is 4,5cm thick.The coating is high reflective Hilux (94% a 97%)The coating is fully intact and new since 2008, this before we moved to Crete to start "Sasteria".This coating last over 25 years. The tube is made from 22mm plywood segments and supported by aluminium bars.The cover is water and dust resistant, in the tube are two fans to cool the mirror.The tube can be used for a Dobson or as you see on our website on a equatorial mount. http://www.sasteria.com/1-telescopes-in-use--the.html The mirror cel has a 18 point flotation system and the secondary is supported by spider with 3 arms. The focuser is from JMI a 2" Crayford low profile with fine tuning 1/10.The base for the focuser can be mounted in two ways, for visual or astrophotography.Just losen 4 Knobs and turn the focuser plate in a other position and you are ready to go.Special made strong wooden case to transport the 20" mirror with secondary. Price for the whole system:Mirror set with Tube and focuser € 3200 Price for the mirror set only: € 3000 Contact: sasteria.crete@gmail.comPhone: 2843052053
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