There are a few different adapters around, but it seems to be a common problem with most webcams, it is with my 3 anyway. I need to be able to get the chip closer to the
PST. It will be an easy fix though. There is a small shoulder on the adapter (about 3-4mm thick), if I grind that down with the ol' dremmil the camera should go all the way in, right to the camera case then. That will give me an additional 6-8mm then, plenty of focus travel hopefully. Maybe even enough to fit a Mogg FR to try for full disk imaging