Hi! As my current 100mm f/2.8 only allow up to 1:1 magnification. How can I make use of my current lens with additional accessories like close up filter or raynox..etc in order to go beyond 1:1, like 2:1 or 3:1? what about 100mm + 50mm reverse mount? 70-200mm with close up filter? 50mm + Raynox 250? Or any other suggestions for best results?