Hi - just as a beginner in spectroscopy, I learn from the discussion and from the comparison of several devices @Christian Buils page that a SBIG 11000 (which I unfortunately have currently in use - (originally not considered for spectroscopy)) is not really a good choice ....
Devices using the - I guess it's a Sony - ICX694AL or ICX285AL is a better choice....
If I continue to step into spectroscopy - currently we start to work with some old devices, where we even do not know the parameters... (I know about slitsize and I know it's primspectroscope) I think about some investment later on.
Georg.
-----Ursprüngliche Nachricht-----
Von: Thomas Eversberg [mailto:
fg-spek-tech@vdsastro.de]
Gesendet: Donnerstag, 24. November 2016 18:41
An:
fg-spek-admin@vdsastro.de
Betreff: [fg spektroskopie] Re: Welche CCD bis 500mm Brennweite
Link zum neuen Beitrag:
http://forum.vdsastro.de/viewtopic.php?t=4540#p28435
Hi Robin!
Zitat:
Yes of course I know noise is also important.
Sure! I wrote the details for other readers who don’t.
Zitat:
Noise levels in modern cameras are lower than the ones you quote so
differences in QE become more important.
Yes! I used the example to show the principle and the potential impact.
Zitat:
In any case the KAF 8300 is not lower in noise than other sensors.
Look at Christian Buil's figures.
That is true, I know this page.
Zitat:
I think you misunderstand the ripples. The ripples here are not in the
bias, they are in the spectral response of the CCD.
I don't hope so! They are from reflections inside the microlenses or the window, right?
Zitat:
Did you test the Morovian cameras this way?
No, we only tested the bias coming from the dealer. Moravian has no microlenses.
Zitat:
There are no ripples in the bias or conventional imaging flat from my
cameras. Would you line to see them?
Don’t worry, I fully believe in your experience and what you say. No ripples in the bias because they are coming from the CCD window.
Zitat:
In fact even I am surprised how good it is.
Yes, very nice!
Cherio, Thomas
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