Assertion: mm lens | /r/HasAspect | focal length of 50mm
Facets:
Source sentences:
text: For example a 50mm lens when focusing to infinity will have a focal length of 50mm, but when focusing on an object 1 meter away the focal length needs to be moved 2.6mm further away from the camera sensor to be in focus.
text: For example, a 50 mm lens has a focal length of 50 mm.