Some spectroscopy from a few years back - VREH filter

[NickH]

Just thought you may like to see some stuff I did a while back. Must dig it out again, it was immense fun

http://www.vreh.com/optics/orion-spectra.jpg

http://www.vreh.com/optics/orion-tour.jpg

[Roger Banks]

Very interesting. What was the physical setup Nick - filter just in line?
Did you calibrate at all?

[alexthegreek]

Very nice Nick !
 Are you pleased with the software that comes with their products ?

 Greetings from Greece
   Alex
 

[NickH]

They provide calibration tools, and assisted with the setup, which was a Meade LPI camera with the IR filter removed.

Software and support I found excellent

[robin_astro]

A word of caution. Some of the processing techniques advocated by VREH can produce artifacts making noise appear as spectral features. If you use them, I would recommend making sure that the results are reproduceable and comparable with library spectra of the star. Also many of the comments on the website are IMO misleading and need to be taken with a (very large in some cases) pinch of salt 

Robin

[NickH]

AGree totally with Robins; statement