From my astrogear, the solar newton is for sale.
Truss Solar Newton T250 for Ha and CaK
Works also with the solar continuum
Works also under the G band (430nm)
The truss tube and mirror are made by Martini Optik
The truss tubes and upper cell are stronger than standard models, to cope with the constraints of a Halpha setup.
The mirror is "multilayer" treated, to reflect the red and part of the deep blue wavelength.
Leaks allow imaging with a solar continuum
The spider is a rigid "double" carbon model
The secondary is a Lambda/20 made by Antares; it has a small damage on one end, not affecting the imaging process.
The focuser is a high quality from Starlight Instruments
Remote focusing through USB_Focus and heavy duty motor
Price: 2500Eur
Equipment available from Belgium.
Contact: allhoest@scarlet.be
Images made with this setup:







