It isn't absolutely necessary, but the skin stretches better if that hole is closed.
Image: d8a_8017.s.jpg

Exif data from d8a_8017.s.jpg:
Copyright: Floyd L. Davidson Date: 2014:02:24 14:05:36
Camera: NIKON D800 Focus Distance: 2.0 m / 6.0 ft
Shutter Speed: 1/30 Aperture: 6.3
ISO: 4000 Light Value: 4.9
Lens: (at 31.0 mm) AF-S Nikkor 24-120mm f/4G ED VR
Description:
It isn't absolutely necessary, but the skin stretches better if that hole is closed.

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Contact by email: Floyd L. Davidson
Last modified: Tue Sep 28 05:02:15 AKDT 2010