You can tell it's winter when I start bringing flowers home from Costco. A larger than life size macro.
This is an in camera montage - an overlay of two images. One image is in sharp focus (f/32 - but since this is a 1:1 macro lens plus a 1.4x TC sharp focus is relative; the DOF is still very shallow even at f/32). The second image is made with the lens wide open and the image completely out of focus (just a giant pink blur). The out of focus image provides the soft pink glow around the edges of the rose in the montage.
The D300 makes it very easy to create this type of image in-camera. However, I don't think it would work for an in-camera "HDR-type" image where you attempt to expand the dynamic range by shooting two (or more) shots - one exposed for shadows and the other for highlights. To do that correctly requires a tonal contrast mask that allows the proper portions of each image to be selected and the rest ignored. This in-camera overlay takes equal parts from all portions of an image regardless of its tonality.