Reply To: CS lens shutter speeds

Your assumptions are correct. According to Stephan Schulz (S2 product manager), there is no vibration advantage when using CS lenses as the focal plane shutter must fire immediately before the leaf shutter. The only advantage of the CS lenses is for faster flash sync speed, which in itself, is only an advantage when shooting with studio strobes outside. In studio, there is little advantage.

Having shot many slower shutter speed shots, the focal plane shutter of the S2 is very soft and I have not had any issues when using any of the Leica S lenses. When using the converted 400mm R lens, there are some speeds which do show movement (1/15, 1/8 for example).