DMK41 AU02.AS : How to configure it with INDI ? #411
Tab long exposure is rather complex to deal with, apart from the enable / disable button, I have no idea of the proper configuration for the other settings. Indeed it seems reserved for advanced users and modded cameras.
Now it would be nice if we could just manage native long exposure cameras like mine ... Thank you for your help!
DMK41 AU02.AS : How to configure it with INDI ? #418
This has been addressed now by Jean-Luc. There is an option now for exposure in V4L2 Control called "Exposure (Absolute)". You also need to set exposure to Manual. But whether this particular V4L2 control is implemented for the DMK UVC driver I don't know, you'd have to try and find out if it works.
DMK41 AU02.AS : How to configure it with INDI ? #420
Not having found the V4L2 Control setting Called "Exposure (Absolute)" in INDI, I tested in guvcviewer that offers manual or auto exposure options and the famous exposure setting (absolute value)
And it works! It took me time to understand what scale was used for the absolute exposure, I remembered that the shortest exposure time of the camera is 1/10000 second, which corresponds here to the number 1. 1 seconds exposure equals 10000, 10 seconds, 100,000, etc.. And the maximum exposure of 60 minutes for the DMK camera is equivalent to 36 million.
The other options in guvcviewer correspond to what is possible for me to set on Windows: brightness (0 to 63), the gain (260-1023), gamma (1 to 500)
DMK41 AU02.AS : How to configure it with INDI ? #424
Ok it works! The V4L2 tab contains exposure in absolute value and tab options V4L2 offers manual or auto mode. By cons, under Ekos in the CCD tab, the exposure setting is ineffective. Setting panel INDI prevails over Ekos. This is not really a problem, adjusting the exposure time is more accurate with INDI
DMK41 AU02.AS : How to configure it with INDI ? #425
Ok, I wanted a confirmation before updating the V4L2 driver. The driver will update "absolute exposure" value if it exists whenever a new exposure is requested, so the Ekos "expsoure" setting will be sufficient by itself.