Hello, I really enjoy using the Seestar S50. The LP filter also works very well. Unfortunately, I can't activate the LP filter myself if it isn't assigned to an object. The preselection is actually quite good, but when I change the section of the nebula, "unknown" often appears next to the object. Then I can't activate the LP filter manually. I use a filter drawer and my own LP filter, but that's obviously not very nice. Perhaps Seestar could improve this. Best regards from Dresden