Hi everyone.
My cass. scope project going slow, and I need something right now.
I tossing between Bintels white 12" dob or Andrews GSO dob.
What is the different between them?
(I like the Bintel becouse its white...
)
Also Andrews Com. selling the 6" achro OTA for about the $800 as well.
How is the Chinese refractors would compare to?
The 6" achro used to be legendary because of higher contrast than mirror based systems (for equal price). How is nowadays the quality of this doublets? Would Andrews Com. exchange it if optically compromised, like spherical aberration or astigmatism?
Any opinion?