The "first" coronado pst mod.

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TheSkyBurner
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The "first" coronado pst mod.

Post by TheSkyBurner » Sat Nov 03, 2018 4:38 am

I was randomly rummaging through the internet, still sitting here with a bad case of insomnia.

I randomly found a thread post for "the first pst mod", before it would get you banned from cloudy nights for speaking of such taboos.

https://www.cloudynights.com/topic/7046 ... telescope/


Pretty interesting! Appears that it was actually first put into play, in germany. This is where all the H-alpha erf filters were manufactured in that time period.

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Merlin66
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Re: The "first" coronado pst mod.

Post by Merlin66 » Sat Nov 03, 2018 4:48 am

Yeah,
I remember that....
Early 2007 we were modding PST in the UK.
I was the first to identify and measure the front PST barlow element and publish the "majic" spacing -200mm inside focus as a definitive requirement.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

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robert
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Re: The "first" coronado pst mod.

Post by robert » Sat Nov 03, 2018 10:03 am

Yes, lots of activity then with webcam mods as well and stacking software. And the ban on CN was a big stimulus for Stephen Ramsden to start Solarchat which has been amazing.
Robert

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