|
Hi Dys,
I think the main reason why people buy refractors is low maintenance.
The collimation is factory set and doesn't need tweeking every night like a mirror based scope does. Plus the refractor is fully sealed from dust and dew.
There is no loss of light from a central obstruction that the secondary mirror does in a Newt.
As Laurie says people don't like looking at stars with spikes hanging off them.
Regards
Bill
|