GeorgeRC's reviews

Carl Zeiss 100mm f/2 Makro-Planar T* 2/100

The test data suggest you might want to stop this lens down to get the best image. But, shooting FF on a Nikon D3 my initial experience is that you can select a wide open aperture if you can live with the shallow DOF. Even at f/2 this lens is sharp on a D3. (A D3x user might need f/2.8 to see the same sharpness, but still find f/2 very usable.)
This is a manual lens, if you need fast focusing, you should skip getting this lens. Also, my D3 gives a green focus confirmation indicator when the focus is still a little off. As a non-CPU lens, fine tuning this is not possible. So, live view (tripod mode) is essential for getting really accurate focusing at wide aperture.