203mm ONTC 8" f/4.5 - 900mm FL - Baader Steeltrack, TSGPU corrector, 2-secondaries, extras...
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Up for sale is my 8” f/4.5 Carbon fiber tube ONTC. This is the ONTC809 with an aperture of 203mm and focal length of 900mm.
I have several good parts on it as well. Currently a 88mm secondary mirror which helps if you want to run a full frame camera on something this fast. This is the GSFS88F on teleskop services website. ($270)
I also have a 70mm secondary with a removable 3d printed aperture mask on it if you wanted to do more of an APS-C sensor sized camera and less obstruction. Both excellent mirrors.
It has a TSGPU 1.0x GPU corrector which is full frame capable. ($315)
It also has a Baader Steeltrack Focuser ($525) which is really a good solid focuser. I have a 3D printed bracket for a ZWO Electronic Focuser I will include. This focuser has a modified baseplate that is form fitting to prevent light leaks. It also has a adjustable draw tube seal to also stop light leaking at the top. A 2 watt polyimide heater is also attached to it f you want to help prevent dew on the coma corrector.
An apertura dovetail plate – 14” ($140) is also attached to the bottom ready to mount.
The rear is also a custom 3D printed 80mm fan system which is double baffled and no light leaks can occur from rear as well as evacuate any air currents.
Lastly, I have a custom dew shield I built for it that also has a mount under it specifically for a Gemini flat panel.
The scopes are crazy good quality, thick carbon and very well made. They are about $2100 usd on Teleskop Services website + customs and tariffs and shipping. With the Baader Steeltrack focuser, dovetail, extra secondary mirror, 3d printed dew shield and rear fan system likely $3500 or more to the door, and this one's available
$2300 + shipping. I will cover paypal fees. Packaging will likely be 2 boxes. Open to some trade ideas, scopes, mounts, same focal length or longer.
