I tested the new feature this morning. It simplify a little bit the parameters selection, but ...
- If the "Overshoot" is selected ... it is not remembered ... need to change the setting each time (and the number of steps)
- the scan direction "Positive" or "Negative" is not saved ... it comes each time in the opposite selection (see first point)
- several times, the Number of measurement points and focuser steps were not remembered.
I changed it to 9 and 200, but the scan was performed with 11/100.
- for the FWHM value (from other message) ... I remark that depending on the size of the red rectangle selection, the calculated FWHM value changed a lot. With the tool "FWHM Measurement", if the red rectangle is only 20x20 pixel around the star, then the FWHM value is correct. If the red rectangle is larger, then the FWHM value is larger (much larger).
Other variation of the calculated FWHM comes form the threshold value.
Here the same 30 sec image (from folder) with the same star, but with the threshold at 20, 25 and 30 % (Yes, I know ... lot of moon background illumination and a little bit too much push the gain and exposure
- FWHM_threshold_20.jpg (216.67 KiB) Viewed 19 times
- FWHM_threshold_25.jpg (217.07 KiB) Viewed 19 times
- FWHM_threshold_30.jpg (216.14 KiB) Viewed 19 times
Regards,
Jean-Francois