Canon has an entire line of aps c mirrorless cameras while nikon only has two full frame models and a single crop sensor.
Compare canon and nikon full frame dslr.
For canon the crop factor is 1 6 because their entry level cameras have slightly smaller sensors.
Most notable is that the d500 has an aps c sensor while the 6d mark ii has a full frame sensor.
So if you put a 50mm lens on any of their crop sensor dslrs you re going to be seeing the equivalent of 80mm.
Both cameras have full frame sensors that are the same size as a frame of 35mm film 36 x 24mm actually the nikon s.
Mirrorless cameras canon vs nikon is the decades old camera battle that will usually be the question on many first time camera buyers lips.
In terms of dslrs canon introduced its eos 1d x mark iii pro sports camera which is a real glimpse of the future while nikon unveiled its impressive mirrorless influenced d780 as well as its own pro sports camera the nikon d6.
That means if you attach a 50mm to a nikon crop sensor dslr it will be equivalent to 75mm.
Here s a blow by blow comparison of the nikon d610 vs canon 6d.