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. 2015 Nov 23;10(11):e0142949. doi: 10.1371/journal.pone.0142949

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© 2015 Carlini et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 4 — (a) Wobble curves in the presence (magenta) and absence (green) of a cylindrical lens, showing little difference in magnitude and direction. (b) Wobble curves at two different objective rotations 45° apart (0°, magenta, 45°, green), showing changes in both directions and magnitude. (c) Wobble curves with 0° (magenta) and ~ 1.5° (green) coverslip tilt. Measurements from 5–6 beads. Error bars are standard deviations of the shift value. X-directions: magenta, open circle, green, open square and y-directions: magenta, filled circle, green, filled square in unmodified (with cylindrical lens, no coverslip tilt and no objective rotation) and modified positions respectively.