I made the mistake of purchasing a new Yashica slide scanner from a well-known "deals online" crowd. It was on special for AU$89.90, down from some reputedly much higher figure, said the spiel.
I thought, O.K., good Jap product, should be alright. Big mistake. It's a Chinese POS that should have never seen the light of day, let alone had the good name of Yashica put on it.
Built to a price (probably around $15), and the scanned end result is crap. The slide holder wobbles around, affecting the focus, and there's bugger all ability to do anything about it.
I should have just bitten the bullet and bought a professional model. Even a well-worn pro model, would still be ten times better than this POS.