Bit off topic I know but I use an astrozap flex dewshield on my LX200R and find I only ever need to use heating when the thing is pointing straight up on a soggy night. Perhaps Perth air is drier
. Back on topic, I am going to turn an adaptor for TrevorW so we can trial my EV1 on his OTA. Do you or anyone know what the thread depth is as I have not physically sighted the tube yet and none of my charts have this thread on them. I know its 90 x 1.0 but depth?
Mark