Damian replied to the topic 'FPS & Resolution on ZWO OSC Cameras' in the forum. 2 months ago

Thanks for the link - that is what happened.
Trying to change it back

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I'd like to second that. I've been using 3.5.7 & 8 on Ubuntu 20.04 quite a bit recently and the stability is amazing!
Managed my first MF last night and the only issue is that (now that it works for me) the amp glow is now on the other side after the flip ;)
Feels really solid. Well done team.

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Damian created a new topic ' FPS & Resolution on ZWO OSC Cameras' in the forum. 2 months ago

I'm copying this to a new thread instead of hijacking the old one here

I have some newbie questions about capturing lunar/solar video with a ZWO OSC. I'm used to doing this with a Canon DSLR but have just moved to a ZWO ASI 183MC Pro.

According to the spec for this camera it is capable of 19fps@5496x3672 to 308fps@320X240

So a few questions if I may:

1. Is the indicated fps in the ekos video window only related to the preview and the actual capture is faster ?

2. Why I can only achieve up to around 6-8 fps when running at 5496x3672 instead of the advertised 19 ?

3. Is running the guide camera (QHY 5L) off the ASI 183 USB hub causing the issue, and it could be improved by wiring the two separately ?

4. How would I switch to the other video modes to achieve the higher frame rates ? I checked in Indilib settings for the camera but didn't see it.

Thanks to Andrew for mentioning the frame exposure times which I'll look into. Any further answers appreciated. The Sun is out of the clouds for now and it would be great to take advantage of it.

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Damian replied to the topic 'Detecting Misted Optics' in the forum. 4 months ago

Thanks Ken,

Yes something that counts the stars then over a set threshold (say 10% difference from first frame) alarms to the user.
This may also catch where alignment is badly drifting or some other occurrences causing a major difference between the initial image.
Maybe a feature request ...

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Damian replied to the topic 'Live Video - Canon 600D' in the forum. 4 months ago

Hi Malcolm
The sliders are to pan left/right or up/down to centre the image.
Hovering over them gives a message about their use.

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Damian created a new topic ' Live Video - Canon 600D' in the forum. 4 months ago

I can select live video mode and see the popup box from Kstars. The image space is all black. I assumed it was not working until I targeted the moon and that shows the moon as a bright disk in the image area - so it is working, of sorts.

I certainly don't see any stars at any point, which others seem to use to do a rough focus ahead of using the autofocus routine.

Is this related to the Framerate ? I tried pushing it to either end of it's range to no effect. I read the documentation but didn't see a reference to this.

Could anyone explain the framerate function and how it affects the seeing of stars, if it has any relevance please ? Or am I looking in the wrong direction ;)

I can select live video mode and see the popup box from Kstars. The image space is all black. I assumed it was not working until I targeted the moon and that shows the moon as a bright disk in the image area - so it is working, of sorts.

I certainly don't see any stars at any point, which others seem to use to do a rough focus ahead of using the autofocus routine.

Is this related to the Framerate ? I tried pushing it to either end of it's range to no effect. I read the documentation but didn't see a reference to this.

Could anyone explain the framerate function and how it affects the seeing of stars, if it has any relevance please ? Or am I looking in the wrong direction ;)

Thanks



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Damian created a new topic ' Detecting Misted Optics' in the forum. 4 months ago

I lost several hours imaging last week due to a dew heater not working correctly. I was wondering whether it's possible to detect the gradual fogging of the objective glass by some kind of image analysis during a EKOS capture session?

I saw that guiding could be halted above a certain HFR limit. I put the resulting CR2 images through DSS and while the quality of the images fell off rapidly the star sharpness did not. I assume then that the HFR value returned for each image won't help in this case ?

Am I missing something that could assist please?

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Hi Lars

You could use WinSCP to copy the files to your windows PC. I use this to copy the images during a session.
winscp.net/eng/index.php

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Damian replied to the topic 'Meridian flip weirdness' in the forum. 6 months ago

Hi Vin,
Could you add your equipment list to your sig please?
Knowing what mount you're using is helpful.
Thanks

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