Yea i moved from cannon 60D and sold all my lenses and gear so i could go Nikon. Their lens can be used all the way back to the 1970s, and they are much cheaper.
Here is a shot 2.8 35-75 mm 1990s lens on my nikon 7100 in low low light ... handheld, like i said.. just make sure the shutter is above your aperture and crack your f/stop to the lowest it will go .. in this case 2.8. I have been meaning to get a nice prime lens with a very low f stop for museum work.. but thats the problem.. i would only use it at the museum .. so i can't justify it to my self yet.