Search found 1772 matches
- Tue May 07, 2024 7:15 pm
- Forum: Deep Sky Imaging
- Topic: Exposure Starting Point
- Replies: 8
- Views: 164
Re: Exposure Starting Point
Jerry Don't overlook the simplicity of test shots and a correctly shaped histogram - to assess the exposure for an object under given sky conditions. These log histograms displayed in FITS Liberator are test shots of M42. Aim for A to be greater than zero and B to be less than 65535. If A is zero, t...
- Tue May 07, 2024 12:09 pm
- Forum: Gallery
- Topic: NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
- Replies: 2
- Views: 87
Re: NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
Thanks Brian.
Dave
Dave
- Tue May 07, 2024 11:56 am
- Forum: Gallery
- Topic: NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
- Replies: 2
- Views: 87
NGC 3372, Ha/OIII 4-panel mosaic, Argentina/UK collaboration
Many thanks to Leandro for capturing the data and producing the Ha and OIII stacks. The images are a 4-panel Ha/OIII mosaic of NGC 3372 (part of the Carina Nebula). Leandro (@leandro from Argentina) captured the data during March/April 2024, over 16 nights to avoid the moon and bad weather. Leandro ...
- Sat May 04, 2024 1:32 pm
- Forum: Gallery
- Topic: M42 chronicles
- Replies: 50
- Views: 27691
Re: M42 chronicles
Tim
Yes with evolving software and my improved processing, I have been able to achieve better results from older data. Always worth revisiting old stuff.
Dave
Yes with evolving software and my improved processing, I have been able to achieve better results from older data. Always worth revisiting old stuff.
Dave
- Wed May 01, 2024 8:22 am
- Forum: Other Cameras
- Topic: SVBony SV305 (Older Non Pro) not natively detected
- Replies: 12
- Views: 352
Re: SVBony SV305 (Older Non Pro) not natively detected
Phil
Dave
This is worth trying. I have an old ZWO ASI120MC USB2 camera which does not work when connected to a USB3 port but functions correctly when connected via a USB2 port.I could try a USB2 hub to see if that works I guess
Dave
- Wed Apr 17, 2024 10:18 am
- Forum: Solar and Lunar Imaging
- Topic: HDR imaging of eclipse
- Replies: 2
- Views: 2079
Re: HDR imaging of eclipse
Brian
This was the Spaceweather Gallery for the event https://spaceweathergallery2.com/index. ... %20eclipse
It looks like everywhere on the path of the event was affected by high cloud.
Dave
This was the Spaceweather Gallery for the event https://spaceweathergallery2.com/index. ... %20eclipse
It looks like everywhere on the path of the event was affected by high cloud.
Dave
- Sat Apr 13, 2024 4:12 pm
- Forum: Solar and Lunar Imaging
- Topic: Color absent in solar flares- assistance requested
- Replies: 4
- Views: 495
Re: Color absent in solar flares- assistance requested
I used to be able to get color images instantly in Pixinsight just by opening a raw file- no debayering needed (up until today) Post, on the internet, an example light frame 'with no debayering needed', together with the Sharpcap capture file and a brief description of the software used/method to p...
- Wed Apr 10, 2024 4:48 pm
- Forum: Live Stacking
- Topic: field rotation, live stacking
- Replies: 4
- Views: 856
Re: field rotation, live stacking
Are flats being used? If so, there would be an impact?
Dave
Dave
- Wed Apr 10, 2024 12:36 pm
- Forum: Solar and Lunar Imaging
- Topic: Color absent in solar flares- assistance requested
- Replies: 4
- Views: 495
Re: Color absent in solar flares- assistance requested
You need to debayer the file first. In PixInsight Process > ColorSpaces > Debayer Once the image is in colour then Process > IdentityTransformations > CurvesTransformation (to taste) Dave Sun-debayer.JPG These are the additional entries added to the FITS header by PixInsight. On my system the conver...
- Sat Mar 23, 2024 6:43 pm
- Forum: Solar and Lunar Imaging
- Topic: Solar Eclipse Resources
- Replies: 3
- Views: 934
Re: Solar Eclipse Resources
Another link to eclipse imaging with useful background info, including exposure and ISO settings for various stages, at Roger Clark's site: https://clarkvision.com/articles/photograph-the-sun/ Roger's plan on eclipse day is to use 5 DSLR cameras on trackers. Note the use of bracket sequences. Dave