Both shots using the ASI120mm - Focal length 4000mm - unmodded stage 2 pst module - so with all lenses intact. Baader 160mm D-erf at 145mm due to a temporary filtercell.
I can see a sweet spot, that turns into a ring when I tune or detune the PST.
Happy viewing
Dirk.
C14 baader 145mm D-erf - PST First test
C14 baader 145mm D-erf - PST First test
DC uses a C14, 130 ED F9, Lunt 50hfa filter, BF600 and BF1200, D-ERF 160MM soon...
- marktownley
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Re: C14 baader 145mm D-erf - PST First test
Uber closeups!
The sweet spot you describe is normal with a pst etalon... Big field angles in the setup you describe on that etalon, so only to be expected...
The sweet spot you describe is normal with a pst etalon... Big field angles in the setup you describe on that etalon, so only to be expected...
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Re: C14 baader 145mm D-erf - PST First test
Yes Mark. I am happy with the prototype. And now hope to start soon experimenting with a lens in front of the pst to alter the cone of rays. I may need a better camera than the asi120mm. Seeing and transparancy were not great. But the 30 percent good frames show promise.
Thanks!
Dirk
Thanks!
Dirk
DC uses a C14, 130 ED F9, Lunt 50hfa filter, BF600 and BF1200, D-ERF 160MM soon...
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Re: C14 baader 145mm D-erf - PST First test
Hi Dirk
a very wild close up, congratulations
a very wild close up, congratulations
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