Report DDM160 tube lenght considerations in ASA DDM160, AZ 800-1750 Posted January 3, 2014 Hi Lukas, the real problem is, that the Newtonian telescope f/4,or faster is always longer than a cassegrain. You need a bigger dome. But a Cassegrain or a Newton-Telescope have almost the same weight. That is the reason, why most of bigger amateur telescopes for photography are Cassegrains. The DDM 160 can carry also e big Newtonian. Best regards Gerhard
DDM160 tube lenght considerations
in ASA DDM160, AZ 800-1750
Posted
Hi Lukas,
the real problem is, that the Newtonian telescope f/4,or faster is always longer than a cassegrain. You need a bigger dome.
But a Cassegrain or a Newton-Telescope have almost the same weight.
That is the reason, why most of bigger amateur telescopes for photography are Cassegrains. The DDM 160 can carry also e big Newtonian.
Best regards
Gerhard