The Agony of Buying Your First Telescope Sorin SoggyAstronomer.com.
Binocular Disparity points (C) nearer than fixation (P) have crossed disparity points (F) farther than fixation have uncrossed disparity.
Binocular Disparity points nearer than horopter have crossed disparity points farther than horopter have uncrossed disparity The Horopter.
The Agony of Buying Your First Telescope
Binocular Disparity
