Dilation and contraction of the pupil of the eye in response to changing light levels. The aperture of the pupil is controlled by the muscles of the iris, the coloured region surrounding the eye.
Stock Footage ID:
D30_4_293
License:
Rights-managed license
Contributor:
Science Photo Library
Clip length:
00:07
Release:
No releases
Frame rate:
25.0 fps
Original codec:
M-JPEG
Get $10 per HD video clip