Does STELLINA integrate dark, flat and offset files?
- Flat would be complicated to manage because of the field derotator
- The bias (offset) is not necessarily necessary on recent sensors (more so than on our cameras, we found that it was impossible to control the behavior of the sensor below 0.5s)
- The dark is managed by our algorithms which carry out the removal of hot pixels as well as the removal of glow. We had considered the possibility of doing it, however it would greatly degrade the user experience because you have to wait for the instrument to do them at the start after, of course, waiting for the product to heat up.
- The vast majority of people would not be aware of the precautions to take so as not to deteriorate the dark (leave the instrument folded, do not point the lights directly on it, etc.)
Can Vespera acquire dark, flat and offset files?
No. Calibration images are entirely managed by our algorithms which, thanks to the combination of internal files and advanced defect clean-up algorithms, allow us to extract the quintessence of the signal without the need for additional shots.
How to export TIFF files?
The TIFF format is a 16-bit file type without compression of the final image, editable steps already carried out, editable on processing software such as Photoshop. You will need a USB key connected to the Stellina for this manipulation. To export ...
I can't open my raw files in Photoshop
The raw files created by STELLINA are delivered in FITS format. This format is specific to astrophotography and needs to be processed a specific way than only experienced amateur astronomers will know how to perform. If you do not have the necessary ...
Why do my FITS files appear in black and white?
The FITS files come from a color sensor containing the information organized as a Bayer pattern. To convert them to a colored image, it is necessary to go through a phase called demosaicing (sometimes called Debayering). A single FITS file is not ...
What softwares do you recommend to edit the raw files?
You can edit the raw files delivered by STELLINA with software such as: – PixInsight (stacking & processing) – Siril (stacking & processing) – DeepSkyStacker (stacking) We encourage you to browse the different topics available online and to follow ...