There isn't one on the adapter chart but I should be able to get something made up although it has some odd threads. It's M55.9 out of the focuser down to M52 out of the Aux Ring then M43 and M36 after the visual adapter. I've seen a 2" ocular to M42 female around so maybe something can be done with that? At least it comes with a 1.25 ocular out of the box