Assertion: lens | /r/HasProperty | mounted on camera
Facets:
Source sentences:
text: For a similar reason, use of a lens hood is recommended when the lens is mounted on a camera.
text: The advantage of this technique is that it works for all lenses mounted on the camera, at least if the camera electronics are aware of the lens' focal length.
text: Since neither the actual physical focal length nor the actual physical aperture change the when the lens is mounted on a camera, it's always an f2 lens.