GyCx
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RGB Alignment Issues - CCD Inspector
GyCx replied to Tommohawk's topic in Imaging - Image Processing, Help and Techniques
Hi I don't have any answers but I am new to mono imaging and in my first attempt of imaging the fireworks galaxy i have the similar issue of I cannot get a good colour from my combination of RGB. There was a flip after the LUM & red channels were captured and then the Blue, Green & Ha were captured after the flip. I will test by ensuring my next target does not require a flip. and post the result. by any chance did you get anywhere with this issue? -
Yes this has been done, last night it would not begin looping with timeout errors in PHD2 after 3 re-boots and changing USB ports a couple of times it finally started looping and then was fine for 3 hours of imaging. I dont get any issues with this camera using any other software its just phd2. So i dont think its a cable or hardware issue i think its how PHD2 interacts with the camera driver on my new laptops USB infrastructure. It was much more reliable on my older laptop which was USB2 only and a different chipset.
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Sorry to gatecrash the thread but I have these same issues with a QHY5l-ii mono and PHD2, the connection keeps timing out, its on its own USB cable and uses the Ascom QHY5L-ii driver after a disconnect. I can open sharpcap connect to the camera and everything is fine. The other behaviors i experience is if i connect it to my ZWO usb2 hub on the asi071mc pro it works ok if I connect to my altair hypercam usb2 hub it does not want to know. It can work for a couple of hours, sometimes more but often less. it could be USB traffic management which would explain the intermittent nature of the issue but I think the drivers are not that great. The problem is you cannot rely on it and have to constantly check if its still working. I use mine on a Highspec HP USB3 laptop I think it was more reliable on my old USB2 laptop. What I find sometimes works for me is boot laptop, complete the sharpcap polar alignment procedure with the QHY5l-ii and then re-boot, open PHD2, connect mount and camera then open your image sequence software like NINA, APT etc this can sometimes give me a reliable connection for a while.
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Sorry to gatecrash! does anyone one know the motor shaft diameter?
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Can you get round stars from C9.25 XLT + FR/FF?
GyCx replied to Jammy's topic in Discussions - Scopes / Whole setups
Hi Jamie. The collimation is out, the point of light should be dead center. I have turned the secondary mirror when cleaning my C11 and it always needs collimating I would try that first. Collimating is like balancing a saucer on 3 fingers and trying to get it perfectly level : ). This is worth a read too telescope - What are the aberrations of an SCT? And how can they be eliminated? - Astronomy Stack Exchange Your 80ED will have a wider FOV and will be much more forgiving, the optic configurations are different too. But for a big SCT on a NEQ6 those stars aint so bad I think your scope needs collimating but thats probably all it needs. Also check your backfocus using a Focal reducer on my C11 its 105mm FR/C to Sensor For me it has to be a hell of a night to get 'nice round stars' using a C11 XLT on EQ6 Belt modded mount but use it for what is good at, getting nice resolution on small galaxies and great planetary/lunar scopes. The Edge versions are really the imaging scopes we're pushing this kit really to do something it aint that great at. I stumbled into using mine for deepsky as I started with planetary imaging, I use pixinsight to process out most of the defects in my images im getting really good at it : ) -
Hi All. I have a ZWO asi071mc pro and will be using it on a C11 with a 6.3 focal reducer I have been advised that i will need 85mm BF from the back lens of the reducer, the issue is if I use the 85 mm measurement the vignetting is massively pronounced compared to a shorter BF length. Can someone point me in the right direction to a formula that I could use to work out the BF myself. Thanks.