Hi,
does any know if there is any quality difference between the Premium GS 10" dob at Andrews to that of the Premium 10" dob at Bintel? I guess both are made in China in the same factory ?
Also, is a cooling fan a must have in a 10", cause I dont think the GS 880 comes with it.
One more question Pyrex versus BK7 glass - it is just the thermal cooling speed the main difference?
Thanks.
