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. 2016 Mar 21;4:e1831. doi: 10.7717/peerj.1831

Figure 5. Examples of images taken using the Sony A7-R digital camera.

Figure 5

Species that are similar in size and shape can be clearly differentiated in photos taken from 50 m above the flock with a 70 mm lens (A, B and C). Smaller birds such as swallows and coots can also be easily identified (D and E). The area footprint of this image is 30 m × 20 m with ground coverage of 7.2 mm/pixel. This image was captured with an ISO = 200, shutter speed = 1/640 s and f-stop = 6.3.