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Chapter  9: Airbor ne V ideo  Systems       245

























                             Figure 9.21  Close-up of the RC310 camera.



                             system named the RC310. It is an inexpensive wireless 2.4-GHz camera system that is
                             currently available from a number of online suppliers.
                                It is powered by a regular 9-V battery, as shown in the figure. It has an adjustable lens
                             with a medium focal length, which is very different from the short focal length of the GoPro
                             camera. Figure 9.21 is a close-up of the camera’s front in which you can see the very small
                             2-mm diameter lens. The GoPro lens by comparison is 14 mm in diameter.
                                The small diameter of the RC310 camera lens means that the RC310 has a limited light-
                             gathering capability. It will not perform well in poor lighting conditions; but this should not
                             matter since the camera will normally be used in daylight conditions.
                                I took the photo shown in Figure 9.22 with the front of the RC310 camera lens 44.2 cm
                             (17.4 in) from the Indian-Head test pattern. There is very little barrel distortion evident in the
                             figure; however, the detail is quite fuzzy, which is due to the limited amount of pixels present
                             in the camera sensor. Table 9.2 details the camera specifications.






















                             Figure 9.22  RC310 test-pattern image capture.
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