[DJDD]

I agree with Steffen.

Originally Posted by Omnius

I went in to Bintel show them what I saw and in the 8" and 10" on the floor had the same issue but the skywatcher 6" and the gso 12" did not.

but if 6"/12" are ok and 8"/10" exhibit the streaks wouldn't that mean that there is a problem with the batch rather than normal for a dob?


also, you mentioned in the first post that the mirror was not round. and the mark around the edge. Has it slipped in shipping?

I was told it was not an issue and I was probably the 1st customer to shine a bright torch (5w LED) down the OTA.

what does it look like with a low power torch? can you see the streaking and other issues?


i have only bought second-hand so some wear and tear was expected.

perhaps the streaking and non-roundedness (is that a word? well, it is now) will not have any impact on your observing but if I bought a new telescope then, unless well-convinced otherwise, I would be unhappy with a mirror that was not round and not clean. some dust, maybe is ok.