Solar Telescope
My solar telescope is the Lunt ST70/420 LS60MT PT B1200Ha OTA Double Stack. That is a mouth full so let's dissect that:
Lunt is the brand, to my modest knowledge the best in its playing field as even NASA uses them.
ST70: Some kind of type of which I could never retrieve what the 70 stands for but I guess it's safe to say that 'ST' means 'Solar Telescope'. The 420 stands for the focal length of 420mm.
LS: Lunt Scope or Lunt Solar, something like that.
60 is the aperture of the telescope.
MT: ModularTelescope. It can be converted into a classic deep sky telescope.
PT: Pressure Tuning. To shift the very fine difference in wavelengths the pressure (density) of the air in between the optical elements of the Etalon can be varied by a compressor.
B1200Ha: the blocking filter for Hydrogen alfa (656.46 nm) with a size of 12mm so photography for this aperture telescope is comfortable.
OTA; Optical Tube Assembly. No mount and/or tripod, just the telescope.
Double Stack: an additional filter to get a boost in contrast and detail. This part takes longer to deliver so I am impatient to finally receive it hopefully in the next 7-10 days.
BE AWARE! The LS40 is not suitable for DSLR cameras! Some may function but the back focus is not designed for them!
This telescope can be fitted for multiple purposes like:
- Ha for the hot upper part of the chromosphere of the sun. The used wavelength is 656.46nm in vacuum and 656.28 in our atmosphere.
- Ca-K for the cooler lower part of the chromosphere right on top of the photosphere of the sun. The used wavelength is 393.4nm.
- Deep sky for nebulae and galaxies.
- All kinds of Terrestrial purposes.