im looking for advice on buying an overhead projector. the old type, for as cheap as possible.
i want one for projecting my art and so it has to be as high quality as possible and i have no idea at all where to start - prices on ebayUK are dirt cheap but i have read that you can get single/double/triple lens and open lens types that affect the image quality.
it is for a small room which can be quite nicely darkened.
can anyone give me some advice? has anyone used one before for this?