The SmallHD Diopter Set for VF4 and DP4-EVF is three pack of Negative Diopters that may help those who need glasses to correct nearsightedness. These lenses, installed like filters, are varying in strengths and effectively are the same as used in eyeglasses to correct near-sightedness. In this case, they allow the lens to properly focus at a further distance than would otherwise be possible. Included will be -1, -2, and -3 diopters which are stackable for a combined effect.