I use a Nikon D-40X, a now discontinued model. However, any of the cheaper Nikon SLRs would be similar. I use an SLR because I have never seen an electronic viewfinder that has adequate resolution for good focusing. Manual focus is essential in good macro photography (model photography is a subset of macro photography.
Also, the "kit" lens that comes with Nikon SLRs is an absolute jewel for model photography. It is their 18-55 mm lens. Here is why. Most macro lenses are only macro on or near their longest focal length. But in model photography you are interested in emphasizing perspective, not shrinking it. Using telephoto focal lengths condense/shrink depth, the opposite of what you want in model photography. The Nikon 18-55 is macro at ALL focal lengths. It also stops down to f/32 for really good depth of field.
My comment on manual focus is because the camera's focus computation does not know which part of the model or scene to focus on, so it picks its own plane of focus. You as the modeler and photographer can much better determine what area to set for best focus.