Search found 528 matches
- Sun May 12, 2024 4:34 pm
- Forum: General Discussions
- Topic: Interaction between FWHM and frame brightness estimates
- Replies: 0
- Views: 42
Interaction between FWHM and frame brightness estimates
I have noticed - more times than can be coincidence - that - especially with rather dim individual frames associated with short exposures - the FWHM estimate often varies with brightness. i.e. amongst a series of consecutive frames of varying brightness (e.g. thin high cloud passing over) higher sig...
Re: Aurora
Jealous! I missed it. Great photos
- Sun May 12, 2024 4:14 pm
- Forum: Gallery
- Topic: High res "EEA" with SC autostacks + Blur Xt
- Replies: 2
- Views: 77
Re: High res "EEA" with SC autostacks + Blur Xt
Thank you Xio, Indeed that is true and the other - probably unique - thing with Robin is that he takes the time not only to address any bugs but to also engage us in suggesting/ prioritising new features. SC 4.1 is a toolkit packed with features covering a wide variety of interests. Tim
- Sun May 12, 2024 10:45 am
- Forum: Gallery
- Topic: High res "EEA" with SC autostacks + Blur Xt
- Replies: 2
- Views: 77
High res "EEA" with SC autostacks + Blur Xt
Whether the below really counts as EEA I am not quite sure -- but it does seem extraordinary that technology has advanced so rapidly over these past few years that it is now possible to observe four or more objects - in this case local galaxies - in really very high detail from a Bortle 7 back garde...
- Sun May 12, 2024 8:55 am
- Forum: Bug Reports
- Topic: Problem with livestacks - dark subtraction - in EEA
- Replies: 19
- Views: 739
Re: Problem with livestacks - dark subtraction - in EEA
To the point that MarMax makes -- I have also seen something similar in the past - i.e. with needing to increase the offset of the lights when going to dark sites - or else ending up with a clipping problem during EEA.
Tim
Tim
- Sun May 12, 2024 8:49 am
- Forum: Bug Reports
- Topic: Problem with livestacks - dark subtraction - in EEA
- Replies: 19
- Views: 739
Re: Problem with livestacks - dark subtraction - in EEA
Just to add in one observation on the livestack problem. I have also observed that - as well as with e ASI294MC camera - you also get the hot pixel problem with the ASI294MM mono camera used in either mode - 11Mb or 46 Mb.
Tim
Tim
- Sun May 12, 2024 8:43 am
- Forum: General Discussions
- Topic: ZWO ASI 294MM issue
- Replies: 3
- Views: 1166
Re: ZWO ASI 294MM issue
Hi Thomas, I have currently been using the exact same camera, up to date drivers and version of Sharpcap over the past week or so. Everything has been fine except for on one night when I also had a connection/ disconnection problem. The fault turned out to be with the USB 3.0 cable connecting the sc...
- Sun May 12, 2024 8:37 am
- Forum: Gallery
- Topic: NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
- Replies: 7
- Views: 376
Re: NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
That is an outstanding image Leandro and Dave - really good detail and colour contrast across the entire mosaic! Tim
- Mon May 06, 2024 8:24 pm
- Forum: Bug Reports
- Topic: Problem with livestacks - dark subtraction - in EEA
- Replies: 19
- Views: 739
Re: Problem with livestacks - dark subtraction - in EEA
Thanks Robin. I also like that option. Borodog's comment is true of e.g. PI post-processing which seems to get rid of the hot pixels - i.e. following calibration with the flat and dark, the cosmetic correction process is set to remove hot pixel outliers at various levels of significance with a slide...
- Mon May 06, 2024 1:38 pm
- Forum: Bug Reports
- Topic: Problem with livestacks - dark subtraction - in EEA
- Replies: 19
- Views: 739
Re: Problem with livestacks - dark subtraction - in EEA
Hi Robin, Thanks. Maybe it all is indeed to do with some idiosyncrasy of the chip? Just to note that the problems is only apparent while I am viewing live in EEA mode - generally I also concurrently save the stacked raw light files and then calibrate, debayer and integrate them afterwards using exac...