Rear Loaded PST Etalon

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
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swisswalter
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Re: Rear Loaded PST Etalon

Post by swisswalter »

Hi Stuart

great thread, great story, good luck on the mod


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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colinsk

Re: Rear Loaded PST Etalon

Post by colinsk »

[quote]If it works for Daystar filters, why not the little PST etalon?

The daystars are designed for a f30 telecentric beam, the PST etalon is designed for a f108 collimated beam. Totally different things...

Do you have a reference for the f/108 spec?


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