Polarized Variable Vectograph: Planets

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The Planets Polarized Variable Vectograph has a range of 10,500 seconds of arc stereopsis depth. The planet images are above, below, and even with the image at +940 to +5,900 secon ds of arc and -1,520 to -5,400 seconds of arc. Features a total accommodation range of 40 diopters with a 16-diopter range for base-in (divergence) training and a 24-diopter range for base-out (convergence) training. Includes the right & left vectographs, a guide, and standard polarized glasses. Show more