One issue I have fairly often is stray light from neighbors. When I use the unit at 1x with a filter, stray light is an issue. I also have this issue with my 50mm guide scope. And sometimes I have this issue through the telescope if enough is getting through.
Looking for suggestions, but here are a few things I can do.
1) A while ago I made these panels made out of PVC and has black material on them. I have 4 panels which can make for a little observatory when tied together. Or I can use one panel by itself to block a specific light.
2) I did flock the inside of the 6 inch F4 and my 10 inch F4.7 was already flocked. This helps greatly for planetary work, but also should help with this situation.
Unfortunately I live in one of those neighborhoods where they want everyone to have a front light on. Mine doesn't work and I don't put it on...but almost everyone else does. Blah.
For the 1x capability I'm thinking maybe I could switch over to using camera lenses which already have light shields I can put on. I still have not installed a filter holder in my c mount camera adapter...I just need to get some sort of silicon to hold that in place. I don't know if that would be better than the Envis lens or not. But for stray light it should be better.