Be careful where you buy this microscope.
At the moment there are a lot of Chinese re-sellers that are shipping from Germany warehouse..
I've got mine in a terrible state a few months ago, new from Ebay. The objective turret was bent, the filter holder was bent due to packaging, and the focus mechanism faulty from inside.
I've went on eBay pictures and the product was literally advertised in a professional way with the external the flaws visible. So most likely they had a large batch of out of factory rejects that they were trying to sell.