A misnomer if we've ever seen one. Dan had a lot of loyal customers, so when Manfred and Josephine Wenzel immigrated here from Germany and took over the business 26 years ago, "We didn't change anything," Mrs. Wenzel says today. Completely utilitarian shop space, with all the artisan tools Mr. Wenzel brought from the old country, where he studied camera repair for three and a half years in the great German tradition: "No computers! Za more sophisticated za camera, za more trouble! I'm an old man from za old school! [Film] transport and electronic shutter speed are complicated."It's why virtually all of Miami's professional photographers patronize Dan's. Wenzel, of course, will work on digitals, which he predicts will take over completely in ten years. He's sophisticated in not wanting to name a "best" camera, but his voice rises when you mention Rolleiflex and Voigtlander, two traditional German camera manufacturers who, like Leica, set the standard. "Right now we're in business. Later, when za digitals vin, I'll sit at home and vatch the pool through the back door. But not yet!"