[NorthernLight (Max)]

Hi Everybody,

I recently bought a 12" GSO DOB and was wondering why the views I got were all a bit too yellowish and orange stars deeply red.

Now, when I looked down the tube under a blue sky I could see that the mirror actually is tinted slightly yellow. I have another Newton and its got Celestrons XLT coatings= no change in colour.

Question: is it normal for a GSO Newton to have that colour cast? Or do I have a Friday afternoon model?