Home made Spectroscopes?

[alexthegreek]

That's a nice link Robin .
I didn't know it . Thank you .

 the owner of the Coronado 60 is anotherfirend of mine .He's been my mentor in  practical Astronomy for many years .
 Here's the set up http://www.youtube.com/watch?v=WFdwb3pjHGU .

 Robin the spectra are amazing .It's always nice to see a high resolution solar spectrum :) .
   My friend  has built a Lyot filter and other stuff as well . I guess most of the time he is busy :) .
  Ken I hope that we will see soon  many nice images with the  double stacked SolarMax 60 .

  If you wish I can translate some parts of the articles .


   Be well
    Alex

[alexthegreek]

Hello everyone .
 Today we chande the collimator .It's another 58mm lens but we will have 4 times bright spectra 
We also re-focused the collimator , and now I feel mych more confident to do it  myself .
The collimator is a 58mm lens only because of space restrictions inside the construction .