|
Steve,
I think it could be MOULD which is a fungus growth.
You need to let your eyepieces dry properly after they have dewed up before you put them away. You should also keep some silica gel sachets in your eyepiece case.
The sad part is, that it is likely to be on the inside. I had that happen to some binoculars a few years ago. You are likely to need to get it serviced by Televue which won't be all that cheap.
Sorry to bring bad news
CS-John B
PS: It is a lot less likely to occur with a Pentax XW than it is with a Televue or any other eyepiece, because the Pentax XW's are waterproof and sealed against moisture
|