Seems like shooting flats has been involved in several recent topics.
I am really looking forward to getting out tomorrow night for some imaging. Haven't had a good night since 4/11.
I would like to shoot several hours on M101 with the L-Enhance filter to collect some red channel data to add to the image that I recently posted here https://www.cloudyni...9252-m101-help/.
Then, slew to M13 for some data using my IDAS LPS D-1 lp filter. Possibly repeating the same two targets the following night if I am so lucky to get two nights in a row!
My dilemma is how do I shoot flats for each filter? Usually, I shoot flats the next day after imaging. I have never swapped filters during a night of imaging. I use a ZWOfilter drawer.
Currently, the IDAS lp filter is in the filter drawer. I would change to the L-Enhance tomorrow and focus before starting the sequence in N.I.N.A.
I really don't want to fumble around at 1 a.m. trying to shoot flats with my ipad after imaging M101 with the L-Enhance, then slewing to M13, focusing, and imaging M13 with the IDAS lp filter.
Does anyone have any suggestions how I can "comfortably" shoot flats for each filter? Is focus critical for shooting flats? Can I install the L-Enhance tomorrow and shoot flats/dark flats, image M101, swap filters to the IDAS LPS D-1, image M13, then shoot flats with the IDAS filter the next day?