[eclectiK (Roger)]

Hi all,

There is so much conflicting information.

I understand dew/condensation forms on the telescope when the temperature of the telescope is lower than the dew point of the air - which is what I found out spectacularly last night as I might has smeared Vaseline over my telescope.

However, some sites say a dew shield is enough, some sites say you need a heater with a dew shield.

So 2 questions:
- will a dew shield typically suffice? (for a Sydney winter) i.e. kmart yoga mat.
- do i really need to go the heated route?

Cheers