[casstony]

I've only dipped my toe in the water as far as imaging goes, using an LPI with a LX90 and 80mm refractor. With the SCT ota the constant focus change due to cooling is a pain. My questions are:

(1). will a carbon fibre tube eliminate focus change in falling temperatures
(2). are there still other cooling based problems that will destroy the image when temperatures are falling.

Thanks,
Tony