Thanks for all the replies, and for putting my mind at ease, I knew I'd some to the right place! And it's the corrector plate, i see. Lots to learn! Really appreciated guys.
Hi all, Just to introduce myself, I'm Tim, from Harlow Essex, and I'm and brand new to astronomy, having bought my first telescope just this week. Myself and the family are already enjoying it immensely with the great views of Jupiter and its moons right from day1.... stunning, and has totally exceeded our expectations! This forum looks to be a great resource, and I expect to come here often to get the views and advice of all you seasoned astronomers. So the main reason for my first post is that I have a slight concern with my new purchase. It was bought with a discount, and I'm told it was from a customer who returned it after a couple of days with a faulty main board in the mount - now replaced, or course. To be honest, it all looks absolutely brand new, and even still had the protective film on the various parts. I really am extremely happy with it other than that I've noticed three tiny specks on the objective lens. I've tried to blow them off using a puffer, but it's now clear to me that either they are dust particles on the inside of the lens, or possibly even slight flaws in the glass (does this happen?).The specks are just below the centre piece of the lens. (sorry, I don't know the name of that part). I've attached a couple of photos, which I hope shows what I mean. Being a novice, I've really no idea if this is something I should be concerned about, or whether it warrants raising with the retailer, so I thought I should first seek the unbiased opinions of those who know far more than I do. I'm hoping it's nothing to worry about. Thanks in advance for any advice, Tim