Though competition's increasing for low-end full-frame cameras, the Nikon D610 holds its own; that said, while slightly faster than its predecessor it's not a whole lot different.
The Nikon D610 continues the D600's tradition of a great set of shooting features; comfortable and intelligent design; and excellent photo quality and performance
Photos still display some unrecoverable clipping in the highlights that you don't expect in a camera of its caliber; and unlike the overhauled D5300; the D610 requires an extra-cost Wi-Fi dongle for connectivity