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Determining where the Flexure is via the image?
(11)Larry, Thumbscrews are notoriously a source of flexure concern. I would conatc Preciceparts.com folks and ask for their help. They can make almost any type of
Flexure - how good is good enough?
(23)Colin, Thank you very much for sharing your interesting experience and great pictures. From experience image artifacts due to flexure effects like, can come
(9)Eric, Thanks for your comments. The major problem is the lack of color data. Hopefully we will find the lost RGB files and I can improve on the color. Thanks
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Getting started in narrowband imaging?
(7)Thanks to all who have replied! It is really no surprise that narrow band imaging is more complex than one might expect. ;-) I will keep studying. Larry ... Hi
Getting proper color balance with Astrodon Gen 2 filters and QSI 683
(7)Stuart, There have been many other good comments in this thread including a link to the G2V catalog. Ultimately the color balance of Astrodon E-Series filters
photonic cleaning solution?
(8)It is probably a collodion (sp?) based product. I have used collodion and for the most part I think it is expensive overkill and does not do a complete job.
Seeing Update: SBIG Seeing Monitor vs Image FWHM
(11)Hi Orlando, Apparently from the guys here who know a lot more than I do - we can get 1.x" seeing on our images from small telescopes with short focal lengths
What is wrong with my flat set-up
(9)Thanks for the guidance It was indeed frost and found a tip on the QSI yahoo group as how to avoid it. Turn on camera with cooling above 0deg C for half an
FWHM difference - mono vs color
(11)Orlando, Your earlier comment about measuring 4" FWHM on 10 sec. exposures makes me wonder if you are at the limit of the measurement capability of the FWHM
Advantages of big pixels at long focal length?
(20)Hi Stan. I'm on the western slope of the Rockies (Utah). My plan for measuring with the seeing monitor will be to start outside on stable ground to make sure
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