Hard to say without a better picture. My guess is yes. Biconvex lenses work best when the lens lies about in the middle between the image to the object. In other words, close up and macro work. Plano-convex work better when the object is a lot further (more than 5x) out from the image. In other words, telephoto or infinity focus work. But that's just according to basic lens theory. They could be compound lenses (more than one lens element), or they could have just thrown together whatever they could find cheaply, and designed the item to sell lenses, rather than designing the lens to sell items.