Hi there everyone.
I was just wondering, I picked up a saxon 8" dob yesterday and i noticed on the sticker on the side of it it says d=200 f=1000.
I realised that all the 8" dobs have a focal length of 1200 and are 203mm in diameter, the f ratio is slightly different too being a f5, as opposed to the ones on the ozscopes site being f5.9. Is this a much older dob? It gave me beautiful views of the moon last night, crystal clear and sharp but i'm just a little confused as to hold old this little beast is. It's in great nik, not a mark on it. The guy who sold it to me said had never really used it, he had the ota on upside down so i didn't doubt him.
Should i be worried?
cheers
Roobi
