After some rather faint dark/reflection stuff I aimed for a target that was also a bit more colorful and emitting light itself. The Cave Nebula has it all: dark nebula, blue reflection as well as emission nebulae.
Here I combined broadband data and H-alpha data from a duo NB filter. With this image I cross the 500 hrs mark for integrated exposure time. Quite cool
At the beginning of one of the nights, I tried collimation with my newly acquired Tri Bahtinov mask. I've been pretty sure that I would easily see that something's off. But actually it looked quite okay. And since I was afraid that I would destroy a good collimation I didn't touch a single screw to see if something changes
But maybe someone more experienced can see if collimation can be improved:
Maybe the central spike at the 8 o'clock position (and the one in the opposite direction) is a bit off?
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