[trent_julie]

Hello all,
I am having trouble with my Coronado PST when I double stack it. What seems to happen is a ghost image of the sun appears, this wouldn't be a problem ordinarily but it manifests itself right at the most ideal tuning point.

I am wondering if anyone else has run into this problem, and what steps they took to resolve the issue. I have heard that removing the ERF can help, but this seems like extreme surgery.

Thanks in advance.

Trent