Gina
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Everything posted by Gina
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That mount looks awesome!! That pier does too. And the observatory is looking good.
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Any difference in sensitivity from ASI294MC Pro and ASI1600
Gina replied to Skyline's topic in Discussions - Cameras
AFAIK the ASI1600MM-Cool is a better camera than the Atik 383L+ with lower noise. The 383 is a very old camera now I gather. -
As I've mentioned before I have Blogs on here detailing step by step setting up a Raspberry Pi for imaging remotely. Initial setup of the RPi is the same as any computer and uses keyboard, mouse and screen. Then installing the astro software is just a matter of following a list of commands and copy/pasting them into the Terminal. Probably easier than what JOC has done.
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Stiff focussing sleeves on lenses is a bit of a bugbear. The sleeves on my 200mm f4 lenses are pretty stiff and I might have to modify my ideas. Currently I use modified 28BYJ-48 gearbox stepper motors with 3D printed quadrant gear and pinion. Info in my blogs.
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Ideally, I would want 3nm Ha on one camera and 5nm on the other so that subs could be taken at the same time. ATM I have both Ha filters and SII in the filter wheel and fixed 3nm OIII in the other imager but I could swap filters over and put one of the Ha filters in place of the OIII.
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I have a 5nm Ha filter as well as 3nm so I could see if the 5nm gives any more signal at f2.8.
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What is the effect of using NB filters at very wide apertures? I use Astrodon 3nm at f 2.5 and don't seem to have any problem.
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I think you mean NOT 🤣
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A good post and thought provoking - thank you.
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Thoughts on which imaging rigs to concentrate on
Gina replied to Gina's topic in Imaging - Discussion
Block diagram of electronics.
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Can I have it as my desktop wallpaper, please? Love the colours.
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Having seen how several hundredweight of observatory roof can take to the skies, it doesn't surprise me!!
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Cracking image!
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Thoughts on which imaging rigs to concentrate on
Gina replied to Gina's topic in Imaging - Discussion
Printing dew shields for the second 105mm imaging lens and the 200mm guiding lens. The dew shields also block moonlight from shining directly on the front lens element. -
Heart and Soul - 52 x 3m 3nm Ha subs, 105mm f2.8 Asahi Takumar lens, FoV 12° x 9°. ASI 1600MM-Cool with gain of 139. Calibrated with darks and flats. Calibrated, aligned and stacked in PixInsight. Custom stretch. Slightly cropped and scaled in GIMP.
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They say the mount is the most important part of an astro imaging setup and I agree. An NEQ6 Pro should do you well for a very long time though admittedly I upgraded to an EQ8. Never regretted either mount.
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Anyone know what the corresponding Astrodon figures are? IOW are the Chroma filters of lower specification? I use my Astrodons at f2.5 upwards. I'm assuming they are including CMOS sensors in their CCD.
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Thoughts on which imaging rigs to concentrate on
Gina replied to Gina's topic in Imaging - Discussion
1. Done. Decided to move the OIII imager out to the end of the dovetail making space between it and the guider to take the electronics box. -
Not tonight - possibly tomorrow night - have to see...
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Do you ever plan to go south over the summer months?
Gina replied to gilesco's topic in The Astro Lounge
I'm quite happy where I am. -
Unfortunately it was my own fault for not fixing the cover adequately and it came off in a storm. The storm did other damage too.
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They seem alright ATM but I'll watch out. The ground is clay and drainage non-existent - needs loads of sand (or gravel).
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Never had any problem with ZWO cameras except when one got filled with rainwater and stopped working - can't blame ZWO for that!!
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That's interesting. If I find I want any more filters I'll try Chroma.
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I have no experience of Chroma filters but I can tell you that Astrodon 3nm filters are much better than their 5nm NB filters at reducing star size and killing moonlight. I know because I have both and never regret forking out for the 3nm filters. They make all the difference to narrow band imaging.
