[mccann73 (Andrew)]

Hi all


I recently purchased a Bintel BT200 f/5 Newtonian scope with an Orion Mini Guidescope and Autoguider, with the cooler months coming I guess I need to start looking at dew heaters, from the controller side I am fine, I can build/mod one for myself, however I am not so certain what I need to protect on the scope, I have read a dew heater on the Newtonian primary is not usually necessary as long as fan is running, but I should have one on the secondary, and heater straps around the eyepiece/camera and ccd guider, sound correct?

Can anyone suggest what type secondary dew heater I would get for this telescope? For the dew straps does anyone have a preference to brand, I see bintel has Kendrick (standard and premier), google turned up Dew-Not Dew which seem to be cheaper or you can make your own, which I am not really interested in doing at the moment.


Thanks
Andrew