Camera lens on the 5.0-60MM1; 3.4-5.9 What does it mean
Camera lens 5.0-60MM is the focal length of the lens: the shortest focal length 5.9 mm, the longest focal length 60 mm.
1: 3.4-5.9 is the lens maximum aperture: the focal length of 5.0 mm, the maximum aperture of 1: 3.4; in the focal length of 60 mm, the maximum aperture of 1: 5.9.
These values are the focal length of the lens, the maximum aperture and other major technical parameters.
5.0-60mm is the lens focal length, the shortest focal length 5.9 mm, the longest focal length of 60 mm, the focal length of this lens can be between 5 to 60 mm. This is the actual focal length of the lens (if the lens is used for the lens of the interceptor or medium frame, the "equivalent focal length" also needs to multiply the respective coefficients.
3.4-5.9 is the largest aperture of this lens, because it is zoom lens, the maximum aperture will change with the lens focal length changes.
At the minimum focal length of 5.0 mm, the maximum aperture is 3.4; at the longest focal length of 60 mm, the maximum aperture is 5.9.
In addition, because the focal length is changing, it also tells us that this is a zoom lens.
