Neil Martin replied to the topic 'Flat Focus Position' in the forum. 4 years ago

Not making any progress, in fact I went backwards! I had to abort my schedule when I noticed that the subs were being taken with a gain of 170, rather than 113. It seems like the gain in the camera tab is getting set to the gain value in the focuser tab (eve though it was initially set at 113). The only way I could work around this was to set both to 113. My first target focused ok (at which point I had to go to bed). But all subsequent targets failed. This morning I found the focus at 0! Perhaps at 113 the images were too thin? I guess I'll have to try increasing the exposure times for focus, or just give up on multiple targets in a single evening. I've lost too many nights imaging not to consider that.

The only time this has run to completion was when I first discovered that I was getting the wrong gain setting for the subs (all my subs were at a gain of 170). On that occasion, I assumed that I had incorrectly set the value in the camera tab,. Is it the intent that the focuser gain has to be the same as the focuser? That would seem odd; or am I doing something else wrong that's causing this? It doesn't like the sequence files contain a setting for gain. As far as I'm aware, the only places I am setting the gain are: the default value in the camera's indi Control Panel, (113) the value in the focuser tab (170, then dropped to 113) and the value in the camera tab (113 when I started, but ended up at 170 before I aborted).

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