4D analysis results

power 4dAnswer:the power of a convex lens is always positive. as you can see here the power is +4D, therefore the nature of the lens is that it is a convex lens. we know, P = 1f. alsoSuperconcentrado Redensificador reafirmante-antiedad de Casmara. Fórmula avanzada que redensifica y redefine los contornos faciales. Casmara Power Lift 4D se compone de