Seen these quite a lot now...
He claim's only basic photoshop use, toning, contrast ect. However, these are (apparently, not much info on the photographer last time I looked) all shot on a Pentax 67 with mostly a 105, but some with the 55 and 200mm lenses. (So that's basically a 28mm 50mm and 100mm lens!!) I think he takes the lens off the body to shoot and literally holds it infront of the camera. That's how he get's the tilt shift effect. Oh and his favourite 105mm lens is basically a Normal perspective lens on the M.F - imagine holding a medium format camera, lens in the other hand, attempting to move the lens to focus and shift the plane, moving the ND grad (he's a big fan of this and his red filter), trying to get a metering, framing the shot and taking the shot all within a few meters of these animals that could kill you and eat you as a snack!!!