what kind of fogging are we talking about?

external fogging on the lens is common and other than being annoying until the temp change stabilizes and the condensation evaporates, it doesnt hurt anything and happens to any smooth surface that goes through a rapid, drastic temp/humidity change(as anyone who wears glasses knows), if thats all it is I wouldnt worry a bit about taking it outside

internal fogging is different... to my knowledge most optics worth their weight now days are pressurized internally with some kind of an inert gas(usually nitrogen) which doesnt allow condensation to form inside the tube even during drastic temp changes
most also have some form of coating on the lenes to help avoid fogging too


I have no idea how the lumi-zone scopes are built, but I'd bet they're sealed(or are supposed to be anyway), if your getting internal fogging the seals been broken somehow, the inert gas has escaped and the tube has de-pressurized which will let in moisture and with it condensation/fogging inside the tube,making it pretty much junk...