Hi all, I am trying to use INDI/astroberry with an SX694 camera. It works well when I am taking long exposures, but does not work when taking exposures of about one second or less (eg flats or bias). The images have a consistent pattern of blotches, that are not related to the flats panel I'm using as a target. A jpg of the results is attached.
I am using indi-sx version 1.14 (trying to install 1.2 on astroberry 2.01 gives me a DistroTemplateException).
The blotches are large scale and have a range max/min of several hundred levels, swamping the usuals flats calibration data. They are not apparent using the same camera and an ASCOM driver, using APT.
I ran the same exposures using INDI through Ekos, and ASCOM through APT. The inspections were all using KStars FITS viewer, with an Ha filter (the Lum filter gave similar results but the CCD became saturated at a lower exposure making the results less clear). The results are interesting.
As can be seen, the shorter the exposure using INDI,the greater the variation in the images. The blotches were identical in all cases, and are aligned to the CCD not the flats panel. The shapes are the same, only the intensity varying, as shown by the SD figures. The ASCOM results showed no equivalent problems. I also tried taking the same shots using APT (on a Windows PC) to connect to the INDI server, but got random noise that did not change with exposure! The min level was about 12k, the max 65k and the mean 32k for all shots.
During the latest tests I ran the camera off a large 12v battery to remove any supply ripple. For what it is worth I am running the RPi4b on its own 5V power supply from 240V.
At present, I cannot take bias or flat frames successfully using INDI. I am not sure how to move forward on this, as I like KStars/Ekos/INDI otherwise . Has anyone else seen this problem, or have any suggestions, please.