that's an incredible amount of hours - you must be getting more clear skies then I am. Will you ever go back and image it again or is that object now crossed of your list ?
We have had nearly a week of clear nights which happily coincided with the new moon- it don't get any better than that. NGC3718 is available nearly all year round at my latitude but best caught in late winter/spring. I am going to carry on imaging this target until I have about 100 hours of L data. It is very faint under my Borter 8/9 skies however I believe it has a lot of secrets still to pull out which can only be achieved by a substantial integration time.
I'm using multiple telescopes to help with this task- The C14 captures high res L & RGB data and the RASA captures the same at a wider image scale but greater etendue. The problems I've worked through have been around registration of different image scales which I found very hit and miss in PI. I'm now using Registar to align all the subs after they have been calibrated and cosmetically corrected using PI. This is a set of software combinations that work well together.
I found PI pretty hopeless to align data at substantially different image scales- that part of the star alignment module could do with a rework as it is not really good for users who have a selection of telescopes and want to combine the data from the mix. Interestingly I don't have any problem registering the same images from telescope or camera- they just don't register when there is a mix and the only thing I can think of is image scale or distortion that is not being handled but that would need clarification and digging into arcane PI settings - which I don't have the time or appetite for.
Edited by pyrasanth, 20 April 2021 - 04:32 PM.