A:Answer The Nikon D5300 DSLR does not have a built-in focus motor like the Nikon D80 DSLR, which means you will be able to use any AF-S lenses you used with your Nikon D80 with no problems. If you were using AF lenses with your Nikon D80, you will still be able to manually focus the lens, but there will be some limitation to the way they function on the Nikon D5300. If you are looking for a DSLR that is more like the Nikon D80, that has a built-in focus motor, try looking into the Nikon D7100, which also offers 6 frames per second, Live View, movie options and 24.1 million effective pixels to make every image richly detailed in true-life HD format.